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[ASAP] Catalytic Dimerization of Alkynes via C–H Bond Cleavage by a Platinum–Silylene Complex

Organometallics
DOI: 10.1021/acs.organomet.0c00195




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No word in Rail Budget on track conversion in Tripura:Minister

have sought clarification on plans of converting the meter gauge railway lines into broad gauge:Transport minister Manik Dey




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Online Collaboration

But for pesky technical gremlins, this would certainly be our best episode yet. Apologies in advance for the background noise. Pre-recording testing was good, however it appears that an intermittent issue with a USB connector has caused us a few problems that can’t be edited out. Now we know we’ll do better next time.

Moving on this week’s show focuses on online document collaboration, discusses GMail’s 9th birthday, a new JS gem from Dave Rupert and much more.




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How Not to Run a Competition

In the 11th instalment of our artisanal hand-crafted high-fidelity podcast we prove that despite being able to bring up a LAMP stack in under 12 minutes we are utterly incapable of running a competition. Listen in and find out who the two, yes two, winners of Keir’s lunchbox are! We also discuss Keir’s (and Elliot’s) latest publication called Digest, chat about a new design trend, shine a light on a new screencasting service and ask if online comments are dead.




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Transitioning

Just when you thought you could delete us from your podcatcher we are back and with a distinct lack of excuses for our absence. This week we discuss our new weekly formats and chat extensively about “transitioning”.

Over the last few months both of us have found our main focuses shifting and as a result the way we present ourselves online has changed, or had to change, too. We revisit our discussion on “flowery Twitter bios” and look at ways in which our friends, colleagues and heroes represent themselves online – through the blog posts they write, links they curate and share and other output including podcasts and videos. We touch on expectations, schedules and much more in our first episode back behind the Yeti’s.

We’d love to hear about your experiences of transitioning. Get in touch on Twitter and Facebook.




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We Don’t Need no Education

I’ll say this — time off between episodes certainly gives us plenty to talk about. In our 45th, almost hour–long, outing behind the mics we welcome new members to “the club“, discuss Kieran’s move into the world of coffee capsule commerce, ponder on new forms of web education, and learn more what Kieran receives in the post!




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Saurashtra on edge over infection due to influx

The district administration in Saurashtra is jittery fearing import of coronavirus cases into the district with the permission for intrastate travel granted by the state government. Jamnagar, which had only one Covid case till now reported five new cases in the past one week.




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Covid-19 medical staff to get addl compensation

The Amdavad Municipal Corporation (AMC) has decided to give additional financial compensation to health and paramedical staff of AMC and private designated Covid-19 hospitals who contact coronavirus infection on duty.




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At frontline, junior docs are soldiers, generals

In the ward of Covid-19 patients, one could expect the medicine, anaesthesia or pulmonology experts at work. But if one visits Civil Hospital, the treating doctor could well be on his/ her way to become ophthalmologist, gynaecologist or general surgeon! In SVP hospital, he or she may be specialising in psychiatry too!




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Resource Showcase: National Emergency Library

Internet Archive has launched a National Emergency Library, containing over 1.4 million ebooks that are usually restricted by institutional passwords and paywalls. These are freely available during the Covid-19 crisis until 30 June 2020. Read more about additional e-resources currently available See what e-resources we currently have on trial See what other resources the library has for your subject




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Synthesis of lignin-functionalized phenolic nanosphere supported Ag nanoparticles with excellent dispersion stability and catalytic performance

Green Chem., 2020, Advance Article
DOI: 10.1039/C9GC04311J, Paper
Shilin Chen, Guanhua Wang, Wenjie Sui, Ashak Mahmud Parvez, Chuanling Si
This work presents a novel and green lignin-based nanocomposite and highlights the synergism of lignin's multiple functions (surfactant, sacrificial template, and reducing agent) in the material preparation process.
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Simplifying levulinic acid conversion towards a sustainable biomass valorisation

Green Chem., 2020, Advance Article
DOI: 10.1039/C9GC04306C, Paper
Chiara Defilippi, Daily Rodríguez-Padrón, Rafael Luque, Cristina Giordano
In the range of biomass valorisation, hydroconversion of levulinic acid (one of the products of the hydrolysis of lignocellulosic biomass) was tested for the first time using nanosized Ni3N and Ni0 catalysts, with very promising results alongside high stability.
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One-pot hydrodeoxygenation of biomass furan derivatives into decane under mild conditions over Pd/C combined with phosphotungstic acid

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00428F, Paper
Song Li, Long Yan, Qiying Liu, Jianguo Liu, Qiyu Liu, Wei Fan, Xuelai Zhao, Xinghua Zhang, Chenguang Wang, Longlong Ma, Qi Zhang
One-pot hydrodeoxygenation of δ-furfurylidenelevulinic acid over Pd/C combined with phosphotungstic acid through successive hydrogenolysis and HDO of furans and lactones.
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Water Effects in the Heterogeneous Catalytic Valorization of Levulinic Acid into γ-Valerolactone and its Derivatives

Green Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0GC01082K, Critical Review
Rengui Weng, Zhihao Yu, Jian Xiong, Xuebin Lu
Levulinic acid (LA), which has been hailed as a versatile biomass-derived platform molecular, typically occupy a core position in the cellulosic biorefinery system. The heterogeneous catalytic valorization of LA for...
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Humin based resin for wood modification and property improvement

Green Chem., 2020, Advance Article
DOI: 10.1039/C9GC03620B, Paper
Open Access
Anna Sangregorio, Anitha Muralidhara, Nathanael Guigo, Lisbeth G. Thygesen, Guy Marlair, Carlo Angelici, Ed de Jong, Nicolas Sbirrazzuoli
Focus on humins, a co-product from sugar conversion, to highlight their capacity to impregnate wood cell walls for making durable wood products.
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Methylation-triggered fractionation of lignocellulosic biomass to afford cellulose-, hemicellulose-, and lignin-based functional polymers via click chemistry

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00451K, Paper
Kentaro Miki, Hiroshi Kamitakahara, Arata Yoshinaga, Yuki Tobimatsu, Toshiyuki Takano
This paper reports a new concept for the biorefinery of lignocellulosic biomass where the derivatisation and fractionation of lignocellulose are accomplished at the same time.
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Sustainable synthesis of cobalt and cobalt oxide nanoparticles and their catalytic and biomedical applications

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00885K, Critical Review
Siavash Iravani, Rajender S. Varma
Recent advances and essential challenges as well as catalytic and biomedical applications of cobalt oxide and cobalt nanoparticles are highlighted.
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Ni-Catalyzed hydrocyanation of alkenes with formamide as the cyano source

Green Chem., 2020, Advance Article
DOI: 10.1039/C9GC04275J, Communication
Xiao Shu, Yuan-Yuan Jiang, Lei Kang, Luo Yang
A novel Ni-catayzed hydrocyanation of various alkenes to provide aliphatic nitriles is developed by generating hydrocyanic acid in situ from safe and readily available formamide.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Ni-Based Heterogeneous Catalysts for the Transformation of Fatty Acids into Higher Yields of O-Free Hydrocarbons

Green Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0GC00853B, Paper
Diego Valencia, Citlalli Zenteno, Diana Gomora-Herrera, María Teresa Gómez-Pérez, Jorge Aburto
A series of novel catalytic materials were synthesized by changing the chemical compounds in the impregnation solutions. A rigid, aromatic and bidentate molecule 1,10-phenanthroline (PhN) was used as a ligand...
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Photocatalyst-free visible light promoted E → Z isomerization of alkenes

Green Chem., 2020, Advance Article
DOI: 10.1039/C9GC04303A, Communication
Jianbin Xu, Na Liu, Haiping Lv, Chixian He, Zining Liu, Xianfu Shen, Feixiang Cheng, Baomin Fan
A photocatalyst-free, simple and green method of visible light driven photocatalytic E to Z isomerization of alkenes has been developed.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Aqueous miscible organic layered double hydroxides as catalyst precursors for biodiesel synthesis

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00571A, Paper
Chunping Chen, Maxwell Greenwood, Jean-Charles Buffet, Dermot O'Hare
Surface area and basicity density dependence of base-catalysed transesterification of sunflower oil by potassium salt prepared AMO-layered double hydroxides.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Eco-friendly and sustainable synthesis of biocompatible nanomaterials for diagnostic imaging: current challenges and future perspectives

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00734J, Critical Review
Ghazaleh Jamalipour Soufi, Siavash Iravani
Current advancements, important challenges and future perspectives of biocompatible nanomaterials for diagnostic imaging are discussed as well as their greener synthesis.
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New biobased-zwitterionic ionic liquids: efficiency and biocompatibility for the development of sustainable biorefinery processes

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC01002B, Paper
Gaël Huet, Monica Araya-Farias, Ranim Alayoubi, Sylvain Laclef, Benjamin Bouvier, Isabelle Gosselin, Christine Cézard, Romain Roulard, Matthieu Courty, Caroline Hadad, Eric Husson, Catherine Sarazin, Albert Nguyen Van Nhien
A combination of experiments and modeling reveals the influence of alkyl chain lengths in biobased ZILs on the biocompatibility towards various microorganisms.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Synthesis of amorphous Geobacter-manganese oxide biohybrid as efficient water oxidation catalysts

Green Chem., 2020, Accepted Manuscript
DOI: 10.1039/C9GC04353E, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Shafeer Kalathil, Krishna Katuri, Pascal Saikaly
The development of low cost and efficient oxygen evolution reaction (OER) catalyst has paramount importance to meet future sustainable energy demand. Nature’s photosynthetic machinery deploy manganese-based complex in photosystem II...
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Thermophilic bio-electro CO2 recycling into organic compounds

Green Chem., 2020, Advance Article
DOI: 10.1039/D0GC00320D, Paper
Open Access
Laura Rovira-Alsina, Elisabet Perona-Vico, Lluís Bañeras, Jesús Colprim, M. Dolors Balaguer, Sebastià Puig
Many industrial combustion processes produce carbon dioxide (CO2) at high temperature, which may be electrically recycled into valuable chemicals using microorganisms as catalysts.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Solvent-free hydrogenation of levulinic acid to γ-valerolactone using a Shvo catalyst precursor: optimization, thermodynamic insights, and life cycle assessment

Green Chem., 2020, 22,2443-2458
DOI: 10.1039/C9GC02088H, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Christian A. M. R. van Slagmaat, Marie A. F. Delgove, Jules Stouten, Lukas Morick, Yvonne van der Meer, Katrien V. Bernaerts, Stefaan M. A. De Wildeman
We studied the solvent-free hydrogenation of levulinic acid to γ-valerolactone with the Shvo catalyst involving comparative catalysis, DFT, and LCA.
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Ga/ZSM-5 catalyst improves hydrocarbon yields and increases alkene selectivity during catalytic fast pyrolysis of biomass with co-fed hydrogen

Green Chem., 2020, 22,2403-2418
DOI: 10.1039/C9GC03408K, Paper
Kristiina Iisa, Yeonjoon Kim, Kellene A. Orton, David J. Robichaud, Rui Katahira, Michael J. Watson, Evan C. Wegener, Mark R. Nimlos, Joshua A. Schaidle, Calvin Mukarakate, Seonah Kim
An integrated experimental and computational study to understand the catalytic upgrading of biomass vapors into high yield of alkenes.
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Insights into pressure tunable reaction rates for electrochemical reduction of CO2 in organic electrolytes

Green Chem., 2020, 22,2434-2442
DOI: 10.1039/D0GC00013B, Paper
Charles I. Shaughnessy, David J. Sconyers, Hyun-Jin Lee, Bala Subramaniam, James D. Blakemore, Kevin C. Leonard
Modeling and simulation reveal the mechanistic basis for the pressure-tunable rates of CO2 reduction at elevated pressures of CO2.
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Dioxomolybdenum complex as an efficient and cheap catalyst for the reductive depolymerization of plastic waste into value-added compounds and fuels

Green Chem., 2020, 22,2419-2425
DOI: 10.1039/C9GC04206G, Paper
Beatriz F. S. Nunes, M. Conceição Oliveira, Ana C. Fernandes
Several types of PCL, PLA, PDO, PET and PBT plastic waste were efficiently converted into value-added compounds and fuels catalyzed by MoO2Cl2(H2O)2.
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Synthesis of renewable C–C cyclic compounds and high-density biofuels using 5-hydromethylfurfural as a reactant

Green Chem., 2020, 22,2468-2473
DOI: 10.1039/D0GC00195C, Paper
Taimei Cai, Qiang Deng, Hailong Peng, Jin Zhong, Rui Gao, Jun Wang, Zheling Zeng, Ji-Jun Zou, Shuguang Deng
Renewable C–C six-membered ring compound and high-density biofuel are synthesized using 5-hydromethylfurfural as a reactant.
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Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance

Green Chem., 2020, 22,2474-2487
DOI: 10.1039/C9GC02569C, Paper
André M. da Costa Lopes, José R. B. Gomes, João A. P. Coutinho, Armando J. D. Silvestre
The potentiality of acidic deep eutectic solvents for β-O-4 ether bond cleavage is herein demonstrated from a mechanistic point of view.
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Efficient base-free oxidation of monosaccharide into sugar acid under mild conditions using hierarchical porous carbon supported gold catalysts

Green Chem., 2020, 22,2588-2597
DOI: 10.1039/C9GC04333K, Paper
Xintong Meng, Zengyong Li, Di Li, Yiming Huang, Jiaojiao Ma, Chuanfu Liu, Xinwen Peng
The highly selective synthesis of D-xylonic acid and D-gluconic acid from monosaccharide catalyzed by Au/NC-3 under base-free aerobic oxidation conditions.
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Direct C(sp3)–H acyloxylation of indolin-3-ones with carboxylic acids catalysed by KI

Green Chem., 2020, 22,2354-2358
DOI: 10.1039/C9GC04446A, Communication
Yong-Long Zhao, Yong-Qin Tang, Xing-Hai Fei, Fen-Fen Yang, Zhuo-Xian Cao, Dong-Zhu Duan, Qing-Jie Zhao, Yuan-Yong Yang, Meng Zhou, Bin He
The first KI-catalyzed direct acyloxylation of indolin-3-ones with carboxylic acids has been developed using 30% aq. H2O2 as a green oxidant at room temperature. Moreover, mechanism studies indicated that a radical oxidation process may be involved for this transformation.
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Synthesis of bioderived polycarbonates with adjustable molecular weights catalyzed by phenolic-derived ionic liquids

Green Chem., 2020, 22,2488-2497
DOI: 10.1039/D0GC00493F, Paper
Wei Qian, Lei Liu, Zengliang Zhang, Qian Su, Weizhen Zhao, Weiguo Cheng, Li Dong, Zifeng Yang, Ruibing Bai, Fei Xu, Yanqiang Zhang, Suojiang Zhang
Phenolic ionic liquid structure can be designed readily to control the molecular weight of isosorbide-derived polycarbonates.
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Fabrication of highly proton-conductive chitosan whole-bio-membrane materials functionalized with adenine and adenosine monophosphate

Green Chem., 2020, 22,2426-2433
DOI: 10.1039/C9GC04104D, Paper
Guanglei Zhao, Yuanyuan Chen, Xiao-Feng Li, Sihan Zhang, Yuanqiu Situ
A successful strategy to prepare novel proton-conductive chitosan membrane biomaterials functionalized with adenine and adenosine monophosphate via a one-pot grafting procedure.
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A facile solution-phase synthetic approach for constructing phenol-based porous organic cages and covalent organic frameworks

Green Chem., 2020, 22,2498-2504
DOI: 10.1039/C9GC04033A, Paper
Lei Zhang, Rongran Liang, Cheng Hang, Haiying Wang, Lin Sun, Lei Xu, Dairong Liu, Zhenyi Zhang, Xingmin Zhang, Feifan Chang, Shengyu Zhao, Wei Huang
A general solution-phase synthetic strategy is developed to construct both porous organic cages (POCs) and covalent organic frameworks (COFs) by simply stirring and heating organic solvent/water solutions of aldehydes and amines in the presence of MOH (M = Na, K, and Cs).
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A non-phosgene process for bioderived polycarbonate with high molecular weight and advanced property profile synthesized using amino acid ionic liquids as catalysts

Green Chem., 2020, 22,2534-2542
DOI: 10.1039/D0GC00265H, Paper
Zhencai Zhang, Fei Xu, Yaqin Zhang, Chenhao Li, Hongyan He, Zifeng Yang, Zengxi Li
Bio-based polycarbonate with high molecular weight and advanced property profile was synthesized using amino acid ionic liquids as catalysts.
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Visible-light-induced photocatalyst-free C-3 functionalization of indoles with diethyl bromomalonate

Green Chem., 2020, 22,2543-2548
DOI: 10.1039/D0GC00292E, Paper
Guangmiao Gu, Mengmeng Huang, Jung Keun Kim, Jianye Zhang, Yabo Li, Yangjie Wu
A visible-light-induced and XB-promoted green approach to construct α-indolyl diethyl malonates was developed.
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Hierarchically porous covalent organic frameworks assembled in ionic liquids for highly effective catalysis of C–C coupling reactions

Green Chem., 2020, 22,2605-2612
DOI: 10.1039/D0GC00223B, Paper
Jikuan Qiu, Huiyong Wang, Yuling Zhao, Pengxin Guan, Zhiyong Li, Hucheng Zhang, Hongshuai Gao, Suojiang Zhang, Jianji Wang
A simple and environmentally benign strategy was reported for the synthesis of hierarchically porous COFs in ionic liquids, and the obtained materials show highly effective catalytic performance for C–C bond formation reactions.
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Solvent-free and montmorillonite K10-catalyzed domino reactions for the synthesis of pyrazoles with alkynylester as a dual synthon

Green Chem., 2020, 22,2388-2393
DOI: 10.1039/D0GC00162G, Communication
Sesuraj Babiola Annes, Rajendhiran Saritha, Saravanan Subramanian, Bhaskaran Shankar, Subburethinam Ramesh
A highly regioselective, solvent-free and montmorillonite K10 clay-catalyzed domino process with an unprecedented C–C bond formation reaction is described for the synthesis of new class of tri-substituted and di-substituted pyrazole derivatives.
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Reusable, homogeneous water soluble photoredox catalyzed oxidative dehydrogenation of N-heterocycles in a biphasic system: application to the synthesis of biologically active natural products

Green Chem., 2020, 22,2575-2587
DOI: 10.1039/D0GC00569J, Paper
S. Srinath, R. Abinaya, Arun Prasanth, M. Mariappan, R. Sridhar, B. Baskar
Herein, a simple and efficient method for the oxidative dehydrogenation (ODH) of tetrahydro-β-carbolines, indolines and (iso)quinolines is described using a reusable, homogeneous cobalt-phthalocyanine photoredox catalyst in a biphasic medium.
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Base-mediated benzannulation of α-cyanocrotonates with ynones: facile synthesis of benzonitriles and fluorenes

Green Chem., 2020, 22,2370-2374
DOI: 10.1039/D0GC00608D, Communication
Maneesh Kumar Reddy Singam, Attunuri Nagireddy, Sridhar Reddy Maddi
Benzonitriles and cyanofluorenes have been rapidly obtained via the [3 + 3] benzannulation of readily available alkynones and α-cyanocrotonates using KOtBu as the only reagent and EtOH (and CO2) is the only by-product.
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One-pot synthesis of 1,3-butanediol by 1,4-anhydroerythritol hydrogenolysis over a tungsten-modified platinum on silica catalyst

Green Chem., 2020, 22,2375-2380
DOI: 10.1039/D0GC00244E, Communication
Lujie Liu, Takehiro Asano, Yoshinao Nakagawa, Masazumi Tamura, Keiichi Tomishige
Chemical production of 1,3-butanediol from biomass-derived compounds was first reported by 1,4-anhydroerythritol hydrogenolysis over a Pt–WOx/SiO2 catalyst.
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Iridium-catalyzed orthogonal and regioselective synthesis of triazole disulfides in aqueous media under mild conditions

Green Chem., 2020, 22,2394-2398
DOI: 10.1039/D0GC00555J, Communication
Ming Li, Nan Zheng, Junhao Li, Yubin Zheng, Wangze Song
Triazole disulfides were prepared in water or biological media under mild conditions by orthogonal and regioselective Ir-catalyzed reactions.
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Using dialkyl amide via forming hydrophobic deep eutectic solvents to separate citric acid from fermentation broth

Green Chem., 2020, 22,2526-2533
DOI: 10.1039/C9GC04401A, Paper
Lijuan Liu, Qifeng Wei, Yong Zhou, Xiulian Ren
The separation of citric acids was realized by utilizing hydrophobic deep eutectic solvents (DESs), which were formed by using N,N-dibutylacetamide as a hydrogen acceptor and citric acid as the hydrogen bond.
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An entirely solvent-free photooxygenation of olefins under continuous flow conditions

Green Chem., 2020, 22,2359-2364
DOI: 10.1039/D0GC00436G, Communication
Patrick Bayer, Axel Jacobi von Wangelin
Photooxygenations of alkenes with singlet oxygen have been performed under solvent-free conditions in a flow reactor under VIS irradiation. The reaction operates at very high substrate/sensitizer ratios and enables high space–time yields.
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Double-metal cyanide as an acid and hydrogenation catalyst for the highly selective ring-rearrangement of biomass-derived furfuryl alcohol to cyclopentenone compounds

Green Chem., 2020, 22,2549-2557
DOI: 10.1039/C9GC04432A, Paper
Xiang Li, Qiang Deng, Lian Yu, Rui Gao, Zhikun Tong, Chenxi Lu, Jun Wang, Zheling Zeng, Ji-Jun Zou, Shuguang Deng
Herein, novel green synthetic routes to 4-hydroxy-2-cyclopentenone (HCP) and 2-cyclopentenone (CPE) from biomass-derived furfuryl alcohol via double-metal cyanide catalysis are proposed.
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Evaluating lignin valorization via pyrolysis and vapor-phase hydrodeoxygenation for production of aromatics and alkenes

Green Chem., 2020, 22,2513-2525
DOI: 10.1039/C9GC04245H, Paper
Open Access
Alireza Saraeian, Alvina Aui, Yu Gao, Mark M. Wright, Marcus Foston, Brent H. Shanks
Lignin valorization to chemicals is an important component of creating economically viable biofuels production from lignocellulosic biomass.
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Improving process efficiency of gold-catalyzed hydration of alkynes: merging catalysis with membrane separation

Green Chem., 2020, 22,2598-2604
DOI: 10.1039/D0GC00498G, Paper
Tahani A. C. A. Bayrakdar, Fady Nahra, Oihane Zugazua, Lies Eykens, Dominic Ormerod, Steven P. Nolan
In this report, we investigate the integration of a membrane separation protocol in line with the gold-catalyzed hydration of alkynes.
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A review of sustainable and intensified techniques for extraction of food and natural products

Green Chem., 2020, 22,2325-2353
DOI: 10.1039/C9GC03878G, Tutorial Review
Open Access
Farid Chemat, Maryline Abert Vian, Anne-Sylvie Fabiano-Tixier, Marinela Nutrizio, Anet Režek Jambrak, Paulo E. S. Munekata, Jose M. Lorenzo, Francisco J. Barba, Arianna Binello, Giancarlo Cravotto
This review presents innovative extraction techniques and their role in promoting sustainable ingredients for the food, cosmetic and pharmaceutical industries.
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