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Synthesis of fluorescent 5-heteroarylpyrimidine-containing oligonucleotides via post-synthetic trifluoromethyl conversion

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00402G, Paper
Yuta Ito, Hisato Tanaka, Ayana Murakami, Yasufumi Fuchi, Yoshiyuki Hari
5-(Benzimidazol-2-yl)- and 5-(benzothiazol-2-yl)-pyrimidine bases-modified oligonucleotides were prepared by post-synthetic trifluoromethyl conversion and their fluorescence properties were measured.
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Synthesis of Asp-based lactam cyclic peptides using an amide-bonded diaminodiacid to prevent aspartimide formation

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00472H, Communication
Wen-Jie Li, Jun-You Chen, Hui-Xia Zhu, Yi-Ming Li, Yang Xu
A diaminodiacid (DADA) containing an amide bond can be used in Fmoc solid-phase peptide synthesis (SPPS) of an Asp-based lactam cyclic peptide with no aspartimide formation.
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Catalyst- and base-free visible light-enabled radical relay trihalomethylation/functional group-migration/carbonylation with CX3SO2Cl

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00292J, Paper
Jinkai Hu, Chenglei Yang, Xiaotao Qin, Hui Liu, Tongtong Ma, Ao-tong Shi, Qing-Long Lv, Xingman Liu, Jinhui Yang, Dianjun Li
A visible light-enabled photocatalyst-free radical trihalomethylation/cyano (or benzo[d]thiazol-2-yl) 1,4-migration/carbonylation reaction of 2-hydroxy-2-hex-5-enenitrile (or (benzo[d]thiazol-2-yl)-pent-4-enol) with CX3SO2Cl (X = F, Cl) is reported.
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Stereoselective Synthesis of gem-Dihalopiperidines via Halo-Aza-Prins Cyclization Reaction: Access to Piperidin-4-ones and Pyridines

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00338A, Paper
Anil Kumar Saikia, Surjya Kumar Bora, Subhamoy Biswas, Bipin Kumar Behera
An efficient methodology for the synthesis of 4,4-dihalopiperidine derivatives has been developed from N-(3-halobut-3-en-1-yl)-4-methylbenzenesulfonamide and aldehyde catalyzed by In(OTf)3 in excellent yields. The reaction involves an initial formation of six...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Recent advances in spirocyclization of maleimides via transition-metal catalyzed C–H activation

Org. Biomol. Chem., 2024, 22,2916-2947
DOI: 10.1039/D3OB01904G, Review Article
Swadhin Swaraj Acharya, Sagarika Patra, Rojalini Maharana, Manaswini Dash, Liza Mama Barad, Bibhuti Bhusan Parida
In recent years, the maleimide scaffold has received a great deal of attention in C–H activation.
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2-Azabicyclo[3.2.1]octane scaffold: synthesis and applications

Org. Biomol. Chem., 2024, 22,2902-2915
DOI: 10.1039/D4OB00199K, Review Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Mariana Crespo Monteiro, João Rafael Vale, Filipa Siopa
This review focuses on the preparation and applications in total synthesis of 2-azabicyclo[3.2.1]octane structures, a class of natural and synthetic compounds with a range of biological activities.
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Not exclusively the activity, but the sweet spot: a dehydrogenase point mutation synergistically boosts activity, substrate tolerance, thermal stability and yield

Org. Biomol. Chem., 2024, 22,3009-3018
DOI: 10.1039/D4OB00211C, Paper
Yu-Ke Cen, Lin Zhang, Yue Jiang, Xiang-Fu Meng, Yuan Li, Chao Xiang, Ya-Ping Xue, Yu-Guo Zheng
A single-point mutation of 7α-HSDH achieved the highest activity and synergistically improved substrate tolerance, thermal stability, cofactor affinity, and conversion rate.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Selective synthesis of an elusive C-functional bis-cyclam and study of its inhibition of the CXCR4 chemokine receptor

Org. Biomol. Chem., 2024, 22,3059-3067
DOI: 10.1039/D3OB02050A, Paper
Marie M. Le Roy, Sandra Claes, Nathalie Saffon-Merceron, Dominique Schols, Thibault Troadec, Raphaël Tripier
A rare example of C,C'-linked bis-cyclam has been synthesized with controlled manner in mild conditions thanks to the “bis-aminal” tool, and its good CXCR4-recognition properties could be demonstated in vitro.
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Expanding the scope of the successive ring expansion strategy for macrocycle and medium-sized ring synthesis: unreactive and reactive lactams

Org. Biomol. Chem., 2024, 22,2985-2991
DOI: 10.1039/D4OB00285G, Paper
Open Access
Zhongzhen Yang, Marion Arnoux, Damien Hazelard, Owen R. Hughes, Joe Nabarro, Adrian C. Whitwood, Martin A. Fascione, Christopher D. Spicer, Philippe Compain, William P. Unsworth
New Successive Ring Expansion (SuRE) protocols are described for use on unreactive lactams, as well as iminosugar derived lactams.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A phosphamide nucleotide analog: a substrate for polymerase synthesis of DNA

Org. Biomol. Chem., 2024, 22,2963-2967
DOI: 10.1039/D4OB00089G, Communication
Jiong Meng, Qiaqia Guo, Xiaona Zhai, Song Yang, Shuai Wang, Pengcheng Wang, Debin Ji
A phosphamide nucleotide analog (dNTPγNH2) exhibited higher stability than dNTPs and can be recognized by DNA polymerases in PCR.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Synthesis of alkynyl sulfides via base-promoted nucleophilic ring-opening of α-bromostyrene sulfonium salt

Org. Biomol. Chem., 2024, 22,2953-2957
DOI: 10.1039/D4OB00203B, Communication
Junqi Zhou, Ziyu Wang, Hanmiao Xu, Mengke Su, Jian Wen
An effective method for synthesizing various alkynyl sulfides has been developed using tetramethylene sulfoxide as a sulfur source through base-promoted nucleophilic ring-opening reactions.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Identification and quantification of local antiaromaticity in polycyclic aromatic hydrocarbons (PAHs) based on the magnetic criterion

Org. Biomol. Chem., 2024, 22,3035-3044
DOI: 10.1039/D4OB00114A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Erich Kleinpeter, Andreas Koch
The ring current effect of entirely and partly (anti)aromatic PCHs are calculated and employed to visualize, qualify and quantify existing (anti)aromaticity, especially to decide unequivocally between PAHs and PAAHs.
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Selective enhancement of (6–4) photoproduct formation in dithymine dinucleotides driven by specific sugar puckering

Org. Biomol. Chem., 2024, 22,3025-3034
DOI: 10.1039/D4OB00279B, Paper
Jouda Jakhlal, Clément Denhez, Stéphanie Coantic-Castex, Agathe Martinez, Dominique Harakat, Thierry Douki, Dominique Guillaume, Pascale Clivio
Evidence is presented that (6–4) photoproduct formation between two thymine residues in dinucleotide analogues is significantly and specifically enhanced when the 5''- and 3''-end sugar puckering are mainly north and south, respectively.
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Charge-transfer inclusion complex formation of the tropylium cation with prism[6]arenes

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00423J, Communication
Guojiao Zhang, Channi Cheng, Zhengxiang Li, Dezhi Zhao, Chengyou Han
We report that charge-transfer (CT) inclusion complexes were formed between prism[6]arenes and tropylium cation. Additionally, the CT complex showed Cl/Ag+ responsiveness which can be easily monitored by the naked eye.
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BBr3-mediated dearomative spirocyclization of biaryl ynones: facile access to spiro[5.5]dienones

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00274A, Communication
Gaurav Jaiswal, Subhas Chandra Pan
BBr3 mediated dearomative spirocyclization of biaryl ynones has been reported for the direct synthesis of spiro[5.5]dienones with a tri-substituted double bond.
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3-Halo-5,6-dihydro-4H-1,2-oxazine N-oxides as synthetic equivalents of unsaturated nitrile oxides in the [3 + 2]-cycloaddition with arynes: synthesis of substituted 3-vinyl-1,2-benzisoxazoles

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00391H, Communication
Alexander A. Lukoyanov, Svetlana A. Aksenova, Andrey A. Tabolin, Alexey Yu. Sukhorukov
3-Halo-1,2-oxazine N-oxide derivatives act as surrogates of vinyl nitrile oxides in tandem [3 + 2]-cycloaddition/[3 + 2]-cyclofragmentation with arynes leading to benzisoxazoles.
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Cu(OTf)2/HFIP catalyzed regioselective cycloisomerization of indole-C3-functionalized alkynols to carbazoles

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00421C, Communication
Srinivasarao Yaragorla, Tabassum Khan, Sayonika Chakroborty
We report here a simple and atom economic cycloisomerization reaction of indole-tethered alkynols for constructing diverse carbazoles via 1,2-alkly migration using Cu(OTf)2/HFIP as the excellent promoter system.
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An FeCl3-catalyzed three-component reaction for the synthesis of β-(1,2,3-triazolyl)-ketones using DMF as a one-carbon source

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00207E, Communication
Ruilin Fang, Lei Zheng, Xuyang Chen, Can Wang, Yunfeng Chen
FeCl3-catalyzed oxidative condensation of NH-1,2,3-triazoles and aryl methyl ketones and DMF has been reported.
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A Highly Diastereoselective One-Pot Ugi/Radical Spirocyclization/Aza-Michael Addition Sequence

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00610K, Communication
Chandra Volla, Salman Khan, Abhradeep Chatterjee, Akshay Murali Nair
We hereby report a highly diastereoselective synthesis of chalcogenated azaspirotricycles via a one-pot Ugi/spirocyclization/ aza-Michael addition sequence. The reaction proceeded via a key visible light mediated spirocyclization step under mild,...
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‘The challenge was in getting the aircraft’s custom clearance’

Private jet operator JetSetGo’s CEO Kanika Tekriwal describes the intricacies of directly importing and leasing an aircraft




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OpenAI’s Whisper transcription tool used in hospitals invents things no one ever said, researchers claim

Whisper is a popular transcription tool powered by artificial intelligence, but it has a major flaw




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Bridging the gap in mental healthcare services: NGOs launch dementia clinics in Hyderabad’s slums

India continues to grapple with a dearth of mental healthcare services, even as the number of persons with dementia is expected to rise over the next two decades




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Understanding orphan drugs: what are they, how are they classified and what are their challenges in the Indian context

While orphan drugs are crucial to treating rare, sometimes debilitating conditions, the high cost of their research and development is a major barrier to their development in India




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EXCLUSIVE! Honey Irani: My Son Farhan Akhtar

'He was an extremely naughty child, always in trouble and creating trouble.''He wanted to fly a kite at night, and sometimes, bunk school.''When I insisted on sending him, we could get a call from school that he had fainted.'




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'Mission to abrogate Article 370 is...'

'I was emotional when the decision took place on August 5, 2019.''I made the film with clear intentions of projecting the truth.'




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EXCLUSIVE! The Payal Kapadia Interview

'Hope is about being more accepting of each other, the kind of solidarity and friendship that even our families may not be able to give.'




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Expert clinic director successfully implements half-hour scheduling system, boosting therapist productivity

As word spread about the success of the half-hour schedule, some early adopters became curious after the clinic director and the team showcased the benefits.




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Shaping the Future of Web Apps: Full Stack Developer's Expertise in API Design and Cloud Deployment

Naga Lalitha has become visible as someone who is changing the face of technology for industry verticals like supply chain and manufacturing.




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The class of Kadamb

Celebrated choreographer Kumudini Lakhia and her students talk about give and take in art. Chitra Swaminathan records the interaction.




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Onion auction to remain closed indefinitely in Nashik wholesale markets to protest 40% duty on export: Traders

Traders claimed the central government's decision to impose 40% duty on the export of onions till December 31, 2023 will adversely affect the onion growers and its export




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To curb price rise, Centre tells traders, millers to declare rice stocks on government portal

They have to declare stock position of paddy and rice every Friday




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Nuclear excitation by electron capture seen at long last

Breakthrough could lead to new type of energy source




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Japan’s SuperKEKB set for first particle collisions

Revamped accelerator will soon be smashing electrons and positrons together




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Return of the classic

The Mercedes AMG Roadster is a fitting tribute to the old classic Benz W 198




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Ready, set, click!

The best cameras in the market, and why Sony gets the top spot among the Nikons and Canons




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Inside Le Locle’s watch factories

A tour of the Ulysse Nardin manufacture factory highlights age-old techniques of enamelling perfected by watchmakers




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LGBTQ+ educators in Catholic schools: embracing synodality, inclusion, and justice / Ish Ruiz.

Lanham, MD : Rowman and Littlefield, 2024.




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Developing inclusive schools [electronic resource] : pathways to success / Mel Ainscow.

Abingdon, Oxon ; New York, NY : Routledge , 2024.




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Equity and inclusion in higher education [electronic resource] : strategies for teaching / edited by Rita Kumar and Brenda Refaei.

Cincinnati : University of Cincinnati Press, 2021.




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Chennai-based organisation invokes actors, celebrities to bring attention to climate change issues

The organisation, Poovulagin Nanbargal, uses the birth dates and birth places of popular Tamil actors to highlight how climate change, such as increasing hot days, has affected the State over the decades




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Uttar Pradesh declares The Kerala Story tax-free, CM Yogi to watch with entire cabinet

Uttar Pradesh becomes the second State after Madhya Pradesh to make the controversial film tax-free




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‘Spy’ movie review: A patchy attempt at a thriller with a story steeped in cliches

The Nikhil Siddhartha starrer attempts to merge a personal story with secret files pertaining to Subhas Chandra Bose and the result is a listless thriller, thanks to several old tropes




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HP launches its first consumer PCs made with ‘recycled plastics’

The new Pavilion is powered by 11th Gen Intel Core processors with Intel Iris Xe graphics



  • Computers & Laptops

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Samsung launches six laptops in India, including Galaxy Book2 Pro 360, Galaxy Book2 Pro

The Galaxy Book2 series includes the Galaxy Book2 Pro 360, Book2 Pro, Book2 and Book2 360.



  • Computers & Laptops

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Multi-cloud is the biggest bet we are making: Dell Co-COO



  • Computers & Laptops

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Democratic breakdown and the decline of the Russian military / Zoltan Barany.

Princeton : Princeton University Press, [2007]




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The worst accident in the world : Chernobyl, the end of the nuclear dream / Nigel Hawkes [and others] ; illustrations by Duncan Mil.

London : Pan Books Ltd : William Heinemann Ltd, 1986.




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Creating Belfast : technical education and the formation of a great industrial city, 1801-1921 / Professor Don McCloy.

Dublin : Nonsuch, 2009.




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Class A / Robert Muchamore.

London : Hodder and Stoughton, 2015.




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Oh, to be a painter! / Virginia Woolf ; introduced and selected by Claudia Tobin.

New York, New York : David Zwirner Books, [2021]