el

Selective recognition between aromatics and aliphatics by cage-shaped borates supported by a machine learning approach

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00408F, Paper
Open Access
Yuya Tsutsui, Issei Yanaka, Kazuhiro Takeda, Masaru Kondo, Shinobu Takizawa, Ryosuke Kojima, Akihito Konishi, Makoto Yasuda
Exploration of a Lewis acid with high selectivity for hydrocarbon moieties is assisted by a machine learning approach. Molecular polarizability is an essential factor, leading to design guidelines for Lewis acid catalysts with dispersion forces.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Electrochemical and photochemical reaction of isatins: a decade update

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00202D, Review Article
Nandini M. Gotgi, J. Saurab Jain, Rita Pal, Debashis Ghosh
This review presents all the recent reports on electro- and photochemical reactions of isatins over the last decade.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

HFIP-mediated C-3-alkylation of indoles and synthesis of indolo[2,3-b]quinolines & related natural products

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00414K, Paper
Auqib Rashid, Waseem I. Lone, Preeti Dogra, Showkat Rashid, Bilal A. Bhat
An expeditious metal free C-3 alkylation of indoles and its NIS-mediated deviation to indolo[2,3-b]quinolines is reported. Applications of these strategies in accessing bioactive natural products have also been demonstrated.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

A copper-catalyzed asymmetric Friedel–Crafts hydroxyalkylation of pyrazole-4,5-diones with 5-aminoisoxazoles

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00322E, Communication
Siyu Gao, Xiang Sun, Sijie Peng, Zhenggen Zha, Qi Sun, Zhiyong Wang
An asymmetric Friede-Crafts hydroxyalkylation reaction was developed under the catalysis of chiral copper complexes. A variety of pyrazolone derivatives were obtained with excellent yields and enantioselectivities.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Synthesis of alkenylphosphine oxides via Tf2O promoted addition–elimination of ketones and secondary phosphine oxides

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00318G, Communication
Jiangkai Ma, Lianjie Wang, Anjiang Qiao, Zhongxian Li, Fengqian Zhao, Junliang Wu
An efficient method for the synthesis of alkenylphosphine oxides via the addition-elimination of SPOs to ketones has been developed. The reaction exhibits good yields and compatibility. Several conversions have also proven the value of this method.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Friedel–Crafts reactions for biomolecular chemistry

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00406J, Review Article
Open Access
Jun Ohata
This review demonstrates advances in Friedel–Crafts alkylation and acylation reactions in a variety of biomolecular chemistry fields.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Electrochemical nickel-catalyzed cross-coupling of glycosyl thiols with preactivated phenols and ketones

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00442F, Communication
Fuxin Li, Hui Liu, Wanyu Xing, Qingju Zhang, Liming Wang
Here we report an efficient electrochemical nickel-catalyzed cross-coupling reaction for the synthesis of S-glycosides from preactivated phenols and ketones.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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




el

Vinylogous and stereoselective domino synthesis of pyrano[2,3-c]pyrroles from alkylidene meldrum's acids

Org. Biomol. Chem., 2024, 22,2948-2952
DOI: 10.1039/D4OB00233D, Communication
Mariia Savchuk, Giang Vo-Thanh, Sylvain Oudeyer, Hélène Beucher, Jean-François Brière
An expeditious diatereoselective synthesis of pyrano[2,3-c]pyrroles thanks to a domino Vinylogous aza-Michael-Aldol-Cyclocondensation (aza-VMAC) reaction to alkylidene Meldrum's acid derivatives.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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




el

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.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Palladium-catalyzed (Z)-selective allylation of phosphine oxides with vinylethylene carbonates to construct phosphorus allyl alcohols

Org. Biomol. Chem., 2024, 22,3068-3072
DOI: 10.1039/D4OB00354C, Paper
Hua Huang, Yi-Qi Wu, Lu-Yao Han, Lu Jiang, Zhuo-Zhuo Zhang, Xiang Zhang, Bo Han, Wei Huang, Jun-Long Li
A general and efficient method for the highly stereoselective synthesis of (Z)-phosphorus allylalcohols has been developed using the Pd-catalyzed cross-coupling of phosphine oxides with vinylethylene carbonates.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Stereoselective synthesis of (R)- and (S)-1,2-diazetidine-3-carboxylic acid derivatives for peptidomimetics

Org. Biomol. Chem., 2024, 22,2974-2977
DOI: 10.1039/D4OB00278D, Communication
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Matthew Nutter, Henry Stone, Michael Shipman, Stefan Roesner
Stereoselective synthesis of both enantiomers of orthogonally protected 1,2-diazetidine-3-carboxylic acid (aAze) from homochiral glycidol and its application in peptidomimetics.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Iron-catalyzed selective construction of indole derivatives via oxidative C(sp3)–H functionalization of indolin-2-ones

Org. Biomol. Chem., 2024, 22,3073-3079
DOI: 10.1039/D4OB00133H, Paper
Wei Chen, Lang-Qi Wen, Xiao-Bing Lu, Hui Zhou
We have developed a clean and efficient iron-catalyzed C(sp3)–H functionalization of indolin-2-ones for the chemodivergent synthesis of value-added indole derivatives, including isatins, and symmetrical and non-symmetrical isoindigos.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Direct access to pyrrole anhydrides via oxidative self-coupling of pyrrole carboxaldehydes

Org. Biomol. Chem., 2024, 22,3045-3052
DOI: 10.1039/D4OB00052H, Paper
Surabhi Panday, Tapas Maity, Pratibha Bhatti, Joydev K. Laha
An elegant synthesis of pyrrole-2-carboxylic acid anhydrides from pyrrole-2-carboxaldehydes using TBAI as a catalyst and tert-butyl hydroperoxide (TBHP) as an oxidant is described herein.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Nickel-catalysed regio- and stereoselective hydrocyanation of alkynoates and its mechanistic insights proposed by DFT calculations

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00380B, Communication
Shigeru Arai, Koichi Nakazawa, Xiao-Fei Yang, Masaya Nakajima, Shinji Harada, Atsushi Nishida
This work discloses the origin of regio- and stereoselectivity of hydrocyanation of alkynoates.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Electro-oxidative three-component cascade coupling of isocyanides with elemental sulfur and amines for the synthesis of 2-aminobenzothiazoles

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00432A, Paper
Peng-Fei Huang, Jia-Le Fu, Ying Peng, Jian-Hong Fan, Long-Jin Zhong, Kewen Tang, Yu Liu
2-Aminobenzothiazoles are commonly encountered in various functional compounds. Herein, we disclose an electro-oxidative three-component reaction for the effective synthesis of 2-aminobenzothiazoles under mild conditions, utilizing non-toxic and abundant elemental sulfur...
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Revisiting Biginelli-like Reactions: Solvent Effects, Mechanisms, Biological Applications and Correction of Several Literature Reports

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00272E, Paper
Brenno A. D. Neto, Pedro Beck, Arthur Leitão, Yasmin Santana, Jose R. Correa, Carime Vitória da Silva Rodrigues, Daniel Machado, Guilherme Matos, Luciana Machado Ramos, Claudia Cristina Gatto, Carlos Kleber Z. Andrade, Sarah Caldas
This study critically reevaluates reported Biginelli-like reactions using a Kamlet-Abboud-Taft-based solvent effect model. Surprisingly, structural misassignments were discovered in certain multicomponent reactions, leading to the identification of pseudo three-component derivatives...
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Discovery of selective monosaccharide receptors via dynamic combinatorial chemistry

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00015C, Communication
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Miguel Alena-Rodriguez, Marcos Fernandez-Villamarin, Ignacio Alfonso, Paula M. Mendes
An effective workflow to discover selective saccharide receptors by combining dynamic combinatorial chemistry with isothermal titration calorimetry and NMR.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Recent developments in the enzymatic modifications of steroid scaffolds

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00327F, Review Article
Open Access
Huibin Wang, Ikuro Abe
This review highlights the recent advancements in the enzymatic modifications of steroid scaffolds, emphasizing enzymatic hydroxylation, ketoreduction, dehydrogenation, enzymatic cascade reactions, and other modifications.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Measuring local pH at interfaces from molecular tumbling: A concept for designing EPR-active pH-sensitive labels and probes

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00167B, Paper
Open Access
Maxim A. Voinov, Nicholas Nunn, Roshan Rana, Atli Davidsson, Alex I. Smirnov, Tatyana I. Smirnova
EPR-based local pH measurements based on changes in rotational dynamics of spin-bearing molecules upon protonation.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

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,...
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Regioselective synthesis of 4-arylamino-1,2-naphthoquinones in eutectogel as a confined reaction medium using LED light

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00140K, Communication
R. Vara Prasad, Yogendra Kumar, R. Arun Kumar, Tohira Banoo, Subbiah Nagarajan
The use of a simple carbohydrate-derived eutectogel facilitating a LED-light-induced regioselective synthesis of 4-arylamino-1,2-naphthoquinones in good yields is reported.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Tetrabutylammonium decatungstate (TBADT), a compelling and trailblazing catalyst for visible-light-induced organic photocatalysis

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00171K, Review Article
Bor-Cherng Hong, Ranadheer Reddy Indurmuddam
This review summarizes recent developments in visible-light or near-visible-light photocatalysis reactions enabled by the TBADT catalyst.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

Base- and sulfur-promoted oxidative lactonization of chalcone-acetate Michael adducts: access to pyran-2-ones

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00479E, Communication
Cao Nguyen Nguyen, Duc Toan Nguyen, Ha An Tran, Dinh Hung Mac, Thi Thu Tram Nguyen, Pascal Retailleau, Thanh Binh Nguyen
A cost-effective, practical, straightforward and scalable synthesis of α-pyrones via base- and sulfur-promoted annulation of phenylacetates and chalcones is reported.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




el

DevTools Digest - Chrome 35: Updates to the Developer Tools in Chrome 35

Updates to the Chrome Developer Tools: CSS property quick search, memory stats for heap snapshots, CodeMirror upgrade and more.




el

Year-end blues for beleagued airlines

The results of IndiGo and SpiceJet hold clues to the mid-term future of the country’s airline industry




el

As the price of aviation turbine fuel soars, airlines’ finances spin out of control




el

Domestic air travel leads airline recovery: Boeing

Low-cost carriers aid market with point-to-point structure and affordable rates




el

Greenfield airports on a slippery runway

The success of these new airports is contingent on the ability to attract international traffic




el

Deep tech is helping airlines sustain operations during Covid

Integrated biometric-enabled frameworks for real-time test results, travel details and vaccine status are key to making air travel safe




el

Short-haul flights redefining air travel

 While the growth of international flights remains muted, demand for narrow-bodied aircraft witnesses a renewed surge 




el

Corporate travel is unlikely to reach pre-Covid levels

However, with offices opening up, many airlines are seeing increased demand with an uptick for premium cabins




el

Sustainable aviation fuels could be a game-changer

But adopting it in Indian aviation could take time




el

Leisure travel seeing a V-shape recovery

Airlines are scaling up their network to capitalise on summer season travel demand




el

Electric aircraft set to transform urban mobility 

Investors are pouring in billions of dollars into eVTOL project (electric vertical take offs and landing aircraft) to ferry passengers




el

Travel now, pay later

Revenge travel has led to an increase in ‘buy now, pay later’ aggregators




el

Why do planes dump excess fuel in the sky?




el

Boeing bids farewell to ‘Queen of the skies’

The first Boeing 747 took off from New York on Jan 22, 1970 and now the final 747 freighter was delivered to Atlas Air on February 1, 2022.




el

Youtube introduces shopping affiliate programme for eligible Indian creators via Flipkart and Myntra

As more platforms allow creators to earn from viewers’ purchases of featured products, YouTube also announced its Shopping affiliate programme in India




el

Google to develop AI that takes over computers: Report

Google is developing AI technology that takes over a web browser to complete tasks such as research and shopping, The Information reported




el

Apple Intelligence launches the iPhone into the AI era

Apple has released a free software update that will inject its first dose of artificial intelligence into its iPhone 16 line-up as the trendsetting company tries to catch up with technology’s latest craze




el

Apple AirPods Pro’s new hearing aid feature could help people face a problem they’d rather ignore

Millions who could benefit from hearing aids have never tried them, but the Apple AirPods could change this




el

Meta builds AI search engine to cut Google, Bing reliance, the Information reports

The Facebook-owner currently relies on Google and Bing search engines to give users answers on news, stocks and sports




el

Microsoft Teams to launch threaded conversations, combined chats and channels features

The app has also added other changes in the interface so users can organise their chats better




el

GitHub unveils multi-model Copilot, Spark for AI developers

Anthropic’s Claude 3.5 Sonnet will be available via GitHub Copilot starting today and Google’s Gemini 1.5 Pro will be available in the coming weeks




el

Elon Musk's xAI in talks to raise funding valuing it at $40 billion: Report

Earlier in October, OpenAI raised $6.6 billion in funding from investors which could value the company at $157 billion