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Aculeatones A and B, epimeric lovastatin derivatives with a 6/6/3-tricyclic carbon skeleton from Aspergillus aculeatus and their chemical transformation

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00351A, Research Article
Fei Liu, Fengqing Wang, Qin Li, Bingbing Dai, Weiguang Sun, Jianguo Li, Chunmei Chen, Yonghui Zhang, Hucheng Zhu
Lovastatin derivatives aculeatones A–F (1–6) with lipid-lowering activity were isolated from Aspergillus aculeatus. 1 and 2 represent the first examples with a 6/6/3-tricyclic scaffold and the biomimetic formation of 1 was achieved starting from 3.
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Cr-mediated Photocatalytic Decarboxylative Coupling of alpha-Oxo Acids with Benzylic Pyridinium Salts

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00475B, Research Article
Jia Cao, Yan Liu, Zhixiang Wang, Le Liu
Herein, we report the chromium/photoredox dual catalytic synthesis of ketones using α-oxo acids with benzylic pyridinium salts. This reaction proceeded by photocatalytic generation of acyl radical from α-oxo acids and...
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Concise synthesis of succinimide-fused densely 1,3-cyclohexadienes via Co-catalyzed [2+2+2] cycloaddition of 1,6-diynes and maleimides

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00435C, Research Article
Jinhui Cai, Kaili Cen, Ziyi Zhai, Yuan Liu, Jiahao Wei, Mixia Ouyang, Guojun He, Shuyu Huang, Feng Zhao
Herein, we report a new route towards succinimide-fused densely 1,3-cyclohexadienes through the reaction of 1,6-diynes with electron-deficient alkenes under cobalt catalysis. This method shown high efficiency, wide substrate scope, good...
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Cobalt-catalysed Csp3–Csp3 cross-coupling of benzyl Katritzky pyridinium salts with Callyl–O electrophiles

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00402G, Research Article
Mengyu Gao, Corinne Gosmini
Different allylbenzyl derivatives are synthesized by Co-catalyzed reductive cross-coupling from functionalized benzyl Katritzky pyridinium salts and various allylic acetates, ethers or carbonates in moderate to good yields under mild conditions.
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NBN/BNB-doped phenalenyl homo- and heterodyads: structural uniformity but optoelectronic diversity

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00468J, Research Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Alexander S. Scholz, Thomas Froitzheim, Michael Bolte, Hans-Wolfram Lerner, Jan-M. Mewes, Matthias Wagner
Phenylene-bridged homo- and heterodyads of NBN- and BNB-phenalenyls were synthesized. The heterodyads show ambipolar redox character and aggregation-induced emission in the solid state.
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Metal-free photoinduced denitrogenative alkylation of vinyl azides with alkyl radicals toward ketones

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00280F, Research Article
Hui Yin, Siqi Jian, Xiujuan Feng, Ming Bao, Xuan Zhang
A metal-free method for the synthesis of ketones via a visible-light induced denitrogenative alkylation of vinyl azides with alkyl radicals is presented.
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Copper-catalyzed oxidative sulfenylation and alkylation of indolin-2-ones for direct construction of sulfur-substituted quaternary carbons

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00491D, Research Article
Yun-Hao Zhang, Yi-Nuo Wang, Zi-Yu Liu, Si-Han Zheng, Guang-Lin Li, Dexin Feng, Da-Zhen Xu
A rapid and green one-pot access to S-substituted quaternary carbon centers from commercially available feedstock chemicals has been established, providing complex molecules with high chemoselectivity by the use of air as the terminal oxidant.
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Base- and metal-free visible-light driven site-selective α-C(sp3)–H functionalization reaction of glycine derivatives with hydroxamic acid derivatives

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00425F, Research Article
Shiyun He, Hongying Fan, Xue Zhang, Meiling Ye, Jian Chen, Jinyu Hou, Tianle Huang, Li Guo, Guanghui Lv, Yong Wu
A visible-light-mediated radical–radical cross-coupling reaction between hydroxamic acid and N-phenyl glycine derivatives under base and metal free conditions is reported. A series of unnatural amino acids and peptides were obtained in good to excellent yields with good chemo-selectivity.
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Efficient Synthesis of Benzophosphole Oxides by Ag-Promoted Radical Cycloisomerization

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00552J, Research Article
Open Access
Liyao Ma, Sonia Mallet-Ladeira, Julien MONOT, Blanca Maria MARTIN VACA, Didier Bourissou
Cycloisomerization reactions involving C–P bond formation have been overlooked to prepare P-heterocycles. We discovered here a simple, efficient and versatile route to benzophosphole oxides by reacting ortho-alkynyl secondary phosphine oxides...
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Photochemical [2 + 2 + 1] annulation of 2-vinyloxy arylalkynes with bromomalonates via energy transfer

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00249K, Research Article
Shuo Tang, Jiupeng Liu, Min Zhang, Dan Wang, Yong Wang, Jingjing Zhao, Pan Li
A transition-metal-free, oxidant-free and base-free photochemical [2 + 2 + 1] radical annulation of 2-vinyloxy arylalkynes with bromomalonates has been developed.
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Catalytic Ortho C-H Methylation and Trideuteromethylation of Arylthianthrenium Salts via the Catellani Strategy

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00506F, Research Article
Chen Chen, Xiao-Xu Zhang, Zi-Yi Wang, Chunjie Ni, Bolin Zhu
We reported a Pd/NBE cooperative catalyzed ortho C−H methylation and trideuteromethylation of arylthianthrenium salts, enabling the efficient synthesis of a wide variety of (trideutero)methylated arenes in moderate to good yields....
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Halogen-Bond-Promoted Direct Cross-Coupling of Ethyl 3-bromo-3-alkyl-2,2-difluoropropanoate with Coumarins/Quinolinones

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00484A, Research Article
Guoliang Pu, Shi-Yuan Song, Jian Yang, Peng Guo, Jia Jia, Peijun Liu, Xuefei Li, Ping Liu, Chun-Yang He
Herein, we developed a practical method for the direct cross-coupling of ethyl 3-bromo-3-alkyl-2,2-difluoropropanoate with coumarins/quinolinones, leveraging a halogen bond as the pivotal non-covalent interaction. Employing this protocol, a library of...
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NHC-Catalyzed Stereoselective Synthesis of Spirooxindole Lactones by in situ Generated Oxindole-embedded o-Quinone Methides and Aldehydes

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00347K, Research Article
Zhengqiang Cao, Fang Hu, Yunpeng Chu, Jiaxue Pei, Xin-Ping Hui
A novel N-heterocyclic carbene-catalyzed asymmetric [4 + 2] annulation of in situ generated oxindole-embedded o-quinone methides with aldehydes has been developed for the assembly of complicated spirooxindoles. The methodology provides...
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Palladium-catalyzed and ligand-controlled divergent cycloadditions of vinylidenecyclopropane-diesters with para-quinone methides enabled by zwitterionic π-propargyl palladium species

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00368C, Research Article
Jia-Hao Shen, Yong-Jie Long, Min Shi, Yin Wei
A palladium-catalyzed and ligand-controlled divergent synthesis of spiro-cyclohexadienones from p-quinone methides and VDCP-diesters was realized via zwitterionic π-propargyl palladium species and the mechanism was clarified by DFT calculations.
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Selective nickel-catalyzed disulfuration of alkyl halides with di/trithiosulfonates

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00411F, Research Article
Lulu Liu, Jiaqi Hou, Yingying Ma, Hongwei Wang, Yu Zhong, Fangcan Liang, Luyao Wang, Qingling Wang, Ji-Quan Liu, Wen-Hua Xu, Dianhu Zhu
Selective reductive disulfuration of alkyl halides with di/trithiosulfonate reagents was developed through ligand regulation, with key features of broad substrate scope, good tolerance and excellent selectivity to disulfides over trisulfides.
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Diverting the Mannich reaction to access 2,2-disubstituted indolin-3-ones by merging 1,2-aryl migration and copper-catalyzed aerobic oxidation

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00481G, Research Article
Jia-Chen Xiang, Yu-Die Wang, Peng Yuan, Hui-Min Zhu, Tong Lei, An-Xin Wu, Zhixin Liao
Three typical substrates for the Mannich reaction, p-anisidine, aldehyde, and a nucleophile, did not afford the predictable linear Mannich base under an aerobic copper oxidation condition, but rendering a 2,2-disubstituted indolin-3-one product.
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Iridium-catalyzed asymmetric hydrogenation of 5-hydroxypicolinate pyridinium salts under batch and flow: stereodefined access to cis-configurated hydroxypiperidine esters

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00322E, Research Article
Zhi Yang, Shangxian Luan, Linxi Wan, Jingxi Chen, Xiaofang Wei, Pei Tang, Fen-Er Chen
An iridium-catalyzed asymmetric hydrogenation of 2-esteryl-5-hydroxypyridinium salts is reported, providing chiral cis-5-hydroxypiperidine-2-carboxylates in excellent yields with high levels of enantioselectivities and diastereoselectivities.
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Thiourea as a precatalyst for the electron donor–acceptor complex photoactivation platform of oxime esters

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00424H, Research Article
Haichen Mao, Yuting Zhang, Hengrong Cao, Qianqian Shi, Yu Lan, Junbiao Chang, Bo Zhu
A novel electron donor–acceptor (EDA) complex catalysis strategy has been developed using thiourea as a precatalyst under blue LED irradiation. Using 2–5 mol% of thiourea, various nitrogen-containing compounds were successfully synthesized.
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Integrating continuous flow reaction and work-up: chiral amine resolution, separation and purification using a novel coalescing filter system

React. Chem. Eng., 2024, Accepted Manuscript
DOI: 10.1039/D4RE00442F, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Bethan May Rowley, Lisa Alice Thompson, Luke Power, James Daglish, Emma Parks, James Birbeck, Stephen P Marsden, Nikil Kapur, John Blacker
To maximize the benefits of a continuous flow reaction, a continuous work-up is also needed. Herein, we present a process design and novel equipment for a continuous amine resolution reaction,...
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A Hierarchical Surrogate Approach to Biomass Ethanolysis Reaction Kinetic Modelling

React. Chem. Eng., 2024, Accepted Manuscript
DOI: 10.1039/D4RE00378K, Paper
Ailís O'Shea, Conall McNamara, Prajwal Rao, Mícheál Séamus Howard, Mohammad Reza Ghaani, Stephen Dooley
The reaction mechanism and kinetics of the sulfuric acid catalysed ethanolysis of glucose, cellulose, xylan, and corncob was investigated using a combination of experiments and empirical reaction mechanism modelling. The...
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A self-adsorption molecule passivated interface enables efficient and stable lithium metal batteries

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE02903H, Paper
Gongxun Lu, Xinru Wu, Miaofei Huang, Mengtian Zhang, Zhihong Piao, Xiongwei Zhong, Chuang Li, Yanze Song, Chengshuai Chang, Kuang Yu, Guangmin Zhou
Self-adsorbing molecules stabilize electrode interfaces and inhibit solvent decomposition to ensure high-voltage stability of lithium metal batteries.
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Scalable electrified cementitious materials production and recycling

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE03529A, Paper
Open Access
Xiao Kun Lu, Wenxin Zhang, Brianna N. Ruggiero, Linsey C. Seitz, Jiaqi Li
Our electrochemical production uses carbon-free rocks, water electrolysis, and CO2 capture/circulation for carbon-neutral/negative cement and green H2, turning cement from the second-largest industrial CO2 emitter to a gigaton-scale CCUS enabler.
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Efficient Fully Textured Perovskite Silicon Tandems with Thermally Evaporated Hole Transporting Materials

Energy Environ. Sci., 2024, Accepted Manuscript
DOI: 10.1039/D4EE03899A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Bhushan Kore, Oussama Er-raji, Oliver Fischer, Adrian Callies, Oliver Schultz-Wittmann, Patricia Samia Cerian Schulze, Martin Bivour, Stefaan De Wolf, Stefan W Glunz, Juliane Borchert
Fully textured perovskite silicon tandem solar cells effectively minimize the reflection losses and are compatible with industrial silicon production lines. To facilitate scalability and industrial deployment of perovskite silicon tandems...
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Multifunctional zeolite film enables stable high-voltage operation of LiCoO2 cathode

Energy Environ. Sci., 2024, Accepted Manuscript
DOI: 10.1039/D4EE04370G, Paper
Zezhou Lin, Yiran Ying, Zhihang Xu, Gao Chen, Xi Gong, Zehua Wang, Daqin Guan, Leqi Zhao, Mingyang Yang, Ke Fan, Tiancheng Liu, Hao LI, Honglei Zhang, Huangxu Li, Xi Zhang, Ye Zhu, Zhou-Guang Lu, Zongping Shao, Peiyu Hou, Haitao Huang
Increasing upper cut-off voltage is a useful way for enhancing specific capacity of LiCoO2 (LCO) cathode and the energy density of corresponding lithium-ion batteries (LIBs), while the main challenge is...
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Contribution of an instructional module incorporating PhET simulations to Rwandan students' knowledge of chemical reactions, acids, and bases through social interactions

Chem. Educ. Res. Pract., 2024, Advance Article
DOI: 10.1039/D4RP00105B, Paper
Jean-Baptiste Ndagijimana, Jeannette Musengimana, Henriette Mushimiyimana, Evode Mukama, Olivier Habimana, Paulin Manirakiza, Jean Claude Dushimimana, Jean Pierre Alpha Munyaruhengeri, Samia Khan, Elizabeth Lakin
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Germany opens doors to skilled Indians amid global visa cuts

The number of skilled Indian workers in Germany has increased to 1.3 lakh from 23,000 a decade ago




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IIT Kharagpur-led study says tropical rainforests could survive global warming

The study, published online in the Elsevier journal, was conducted on records of rainforests in sediments from Gujarat’s Vastan coal mines deposited in coastal lagoons around 56 million years ago




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CPI(M) Kerala secretary M.V. Govindan backs E.P. Jayarajan amid autobiography controversy

Govindan says CPI(M) does not require members to seek prior permission to write a book, though he emphasised that consultation with the party should occur before publication




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Centre releases ₹266.8 crore under 15th Finance Commission grants for rural local bodies in Kerala

Allocation represents second instalment of untied grants for 2024-25, and is meant for all eligible district panchayats, block panchayats and gram panchayats in Kerala




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Panel to look into ‘disruption’ of Kerala School Sports & Games




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Meenachil river basin project in for revival




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Swami AI chatbot to improve Sabarimala pilgrimage experience




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‘Sea ranching’ launched off Thiruvananthapuram as follow-up to artificial reef project

Minister of State for Fisheries George Kurian launches project; 10 lakh pompano, cobia fingerlings to be deposited in 10 selected locations




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Waqf Board can initiate criminal proceedings in post-2013 Waqf land encroachment cases

A Single Judge of the Kerala High Court quashed the proceedings against two people in an alleged pre-2013 land encroachment case on Tuesday by noting that such acts were made punishable only through an amendment to the Waqf Act in 2013, the accused were in possession of the property even before the introduction of the amendment, and no penal acts could be given retrospective operation




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Kollam’s first Keralagro outlet inaugurated

Agricultural products reach Keralagro stores with FSSAI certification and currently over 3,000 value-added products are being manufactured through 10,76 Krishibhavans in the State




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Quiz competition on AI in Karunagapally




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KHTC looking to resume boating in Anayirankal dam

Agency, in an affidavit submitted in the Kerala High Court, outlines plans to make boating facility more eco-friendly




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Tata Power Renewable Energy unveils 126 MW Omkareshwar floating solar project, setting new global standards

With this project, TPREL’s total renewable capacity reaches 10.9 GW, reinforcing its position in India’s journey towards a greener energy future.




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Cambodia to deploy over 16,000 security forces for water festival this week




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Coast Guard Chief S Paramesh calls on India's High Commissioner to Sri Lanka, discusses maritime security




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Alix Didier Fils-Aime sworn in as new Haiti PM, as gunfire hits US flight




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Germany to hold snap elections on February 23 as coalition crumbles under economic strain




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India, Russia discuss economic cooperation, facilitating mobility of talent and skills




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Indian Embassy in Kathmandu calls on diaspora to sign-up for Pravasi Bharatiya Divas Convention of January




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South Africa expects G20 summit to strengthen multilateralism




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S.Korea, US-developed solar coronagraph installed at International Space Station




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Four-day Africa Tech Festival 2024 kicks off in Cape Town




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South Korea, US, Japan to hold 2nd trilateral Freedom Edge exercise this week




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Carpet fibres used by Australian researchers to make stronger concrete




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Modi honoured Marathi by giving it classical language status, Amit Shah