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C-DOT, IIT-Roorkee tie-up to develop millimeter wave transceiver for 5G rural connectivity

The project focuses on the development of millimeter wave backhaul technology in which only a small number of small cell-based stations are connected to the gateway through fibre




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India among fastest-growing markets for Microsoft Copilot

Microsoft’s refreshed Copilot, launched last month, gives users the ability to talk with Copilots real-time, moving human-computer interaction to a completely new paradigm




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Indian IT sector lags in global RPE standards, yet digital shift signals growth potential

The Indian IT sector, while traditionally emphasising cost-effective outsourcing, is gradually evolving to enhance RPE and profitability through investments in upskilling and digital innovation




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With Trump win, DoT gears up to sort out issues related to Elon Musk’s Starlink

The department of telecommunications is looking into security aspects while considering the demands made by two American companies — Starlink and Amazon (project Kuiper), say sources




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This is naked greed, nothing less: Zoho’s Sridhar Vembu on Freshworks layoff

‘This is why choose to remain private. We put our customers and employees first. Shareholders should come last,’ Vembu




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Zuckerberg not personally liable in lawsuits over social media harm to children

A US District Judge rejected accusations that Zuckerberg directed Meta's efforts to conceal from children the serious mental health risks of using Facebook and Instagram




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Root of the matter

What forms words and their meanings?




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Well-dressed notes

What if I told you that a musical note is technically a chord? Well, I’m partially right.




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Riot of colours

On July 9 young artists turned up at Palghat Lions School in hordes.





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Deconstructive annulation mediated one-pot synthesis of xanthene derivatives

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00093E, Paper
Balasubramaniyam Manikandan, Subbiah Thamotharan, Olivier Blacque, Subramaniapillai Selva Ganesan
One-pot, two-step methodology utilized for the sequential C–O/C–N cleavage followed by intramolecular/intermolecular annulation reaction.
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Coumarin–azasugar–benzyl conjugates as non-neurotoxic dual inhibitors of butyrylcholinesterase and cancer cell growth

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00312H, Paper
I. Caroline Vaaland Holmgard, Aday González-Bakker, Eleonora Poeta, Adrián Puerta, Miguel X. Fernandes, Barbara Monti, José G. Fernández-Bolaños, José M. Padrón, Óscar López, Emil Lindbäck
Coumarin–azasugar–benzyl conjugates were obtained through the CuAAC reaction, displaying dual anti-Alzheimer and anti-cancer activity in vitro and no neurotoxicity.
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New 2-pyridone-based donor–acceptor dyes: the effect of the donor group position, type of π-linker and acid–base characteristics of the medium on the photophysical properties

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00177J, Paper
Saveliy P. Sorokin, Mikhail Yu. Ievlev, Oleg V. Ershov
Synthesis of a series of new donor–acceptor dyes based on 2-pyridone and the study of the effect of the position of the donor group, the type of π-linker and the acid–base characteristics of the medium on their photophysical properties.
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Use of ionic liquids in amidation reactions for proteolysis targeting chimera synthesis

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00304G, Paper
Michela Eleuteri, Jenny Desantis, Gabriele Cruciani, Raimondo Germani, Laura Goracci
Selective degradation of disease-causing proteins using proteolysis targeting chimeras (PROTACs) has gained great attention, thanks to its several advantages over traditional therapeutic modalities.
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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.
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A rhodium-catalyzed cascade C–H activation/annulation strategy for the expeditious assembly of pyrrolidinedione-fused 1,2-benzothiazines

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00193A, Paper
Yinsong Wu, Guanghao Shi, Yanan Liu, Yangzilin Kong, Mengdi Wu, Demao Wang, Xiaobing Wu, Yongjia Shang, Xinwei He
We have developed a cascade annulation strategy triggered by rhodium(III)-catalyzed C–H activation for the expeditious assembly of pyrrolidinedione-fused 1,2-benzothiazines from free NH-sulfoximines with maleimides under mild conditions.
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Photoinduced decatungstate-catalyzed C(sp3)–H thioetherification by sulfinate salts

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00394B, Paper
Pengcheng Li, Jia-Lin Tu, Ao-Men Hu, Lin Guo, Chao Yang, Wujiong Xia
A visible light photoinduced decatungstate-catalyzed C(sp3)–H thioetherification of hydrocarbons by sodium sulfite is herein reported.
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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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Chemoenzymatic total synthesis of rotigotine via IRED-catalyzed reductive amination

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00072B, Communication
Dongyu Tang, Yaqing Ma, Jinping Bao, Shushan Gao, Shuli Man, Chengsen Cui
An engineered imine reductase (IRED) was developed specifically for 2-tetralone substrate, and utilized in the total synthesis of rotigotine.
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DMSO promoted catalyst-free oxidative C–N/C–O couplings towards synthesis of imidazoles and oxazoles

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00383G, Paper
Debasish Bera, Rajib Sarkar, Tiyasa Dhar, Pinaki Saha, Prasanta Ghosh, Chhanda Mukhopadhyay
Dimethyl sulfoxide (DMSO)-promoted catalyst-free oxidative C–N coupling and C–O coupling under oxidant-free conditions are outlined.
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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.
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Asymmetric total synthesis of humulane sesquiterpenoids alashanoids B, C, E, and F and 2,9-humuladien-6-ol-8-one

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00393D, Paper
Rasmita Barik, Samik Nanda
Naturally occurring sesquiterpenes having humulane frameworks are structurally intriguing and possess significant biological profiles.
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Total synthesis of diplofuranone A and diapolic acid A

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00433G, Communication
Dattatraya H. Dethe, Vimlesh Kumar, Nagabhushana C. Beeralingappa
The first and concise syntheses of the anticancer agent diplofuranone A and the fatty acid-derived metabolite diapolic acid A have been demonstrated using easily accessible and commercially available starting materials.
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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.
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Photogenerated chlorine radicals activate C(sp3)–H bonds of alkylbenzenes to access quinazolinones

Org. Biomol. Chem., 2024, 22,2968-2973
DOI: 10.1039/D4OB00129J, Communication
Xin-Yao Pan, Gui-Xia Sun, Fang-Ping Huang, Wen-Jian Qin, Qing-Hu Teng, Kai Wang
An Fe-catalyzed visible-light induced condensation of alkylbenzenes with anthranilamides has been developed.
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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.
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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.
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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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Photochromism of phenazine-2,3-diol derivatives through excited state intermolecular proton transfer based on keto–enol tautomerization

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00387J, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Kazuki Ohira, Kumpei Kozuka, Naoki Kaneda, Masahiro Yamamoto, Keiichi Imato, Yousuke Ooyama
It was found that phenazine-2,3-diol derivatives exhibit photochromism through excited state intermolecular proton transfer (ESInterPT) processes based on keto–enol tautomerization.
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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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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...
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Photoproperties of Favipiravir and their 6-Substituted Analogues: Fluorescence Controlled through Halogen Substitution and Tautomerism

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00397G, Paper
Angel H Romero, Marcos Couto, Ivan E Romero, German Fuentes, Matías N. Möller
Herein, we showed the photophysical properties of the favipiravir and their 6-substituted analogues. Also, we interpreted the origin of the fluorescence of the favipiravir and their 6-substituted analogues as function...
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Design, synthesis, biological evaluation and molecular docking studies of quinoline-anthranilic acid hybrids as potent anti-inflammatory drugs

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00040D, Paper
Sidra Siddique, Khalid Hussain, Naureen Shehzadi, Muhammad Arshad, Muhammad Nadeem Arshad, Sadaf Iftikhar, Farhat Saghir, Ayisha Shaukat, Muhammad Sarfraz, Nisar Ahmed
Despite the high global prevalence, rheumatoid arthritis lacks a satisfactory treatment.
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Isothiocyanates: Happy-Go-Lucky Reagents in Organic Synthesis

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00281D, Review Article
Bubul Das, Anjali Dahiya, Bhisma K Patel
: Owing to their unique structural features, isothiocyanates (ITCs) are a class of highly useful and inimitable reagents as the N=C=S group serves both as electrophile and nucleophile in organic...
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TEMPO/PhI(OAc)2 promotes the α-aminophosphinoylation of alcohols with amines and H-phosphine oxides in aqueous medium

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00302K, Communication
Qiang Huang, Xin Jin, Lvjia Wu, Jiangdong Li, Qianlu Xing, Xianheng Wang, Changkuo Zhao
The aminophosphinoylation of alcohols with amines and H-phosphine oxides provides an efficient and mild approach to access various α-aminoalkylphosphine oxides in good yields with good tolerance of functional groups using H2O as a clean solvent.
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Facile synthesis of tetrahydroquinoline containing dithiocarbamate derivatives via one-pot sequential multicomponent reaction

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00490F, Communication
SIDDHARTHA KUMAR SENAPATI, Anit Pal, Animesh Das
An efficient sequential multi-component method for the synthesis of tertrahydroquinoline containing dithiocarbamate has been developed. This reaction involved a boronic acid-catalyzed reduction of quinoline to tertrahydroquinoline, followed by nucleophilic addition...
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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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N-Functionalization of beta-aminophosphonates; Cytotoxic effect of the new derivatives

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00243A, Paper
György Keglevich, Petra Regina Varga, Emőke Dinnyési, Zsuzsanna Szalai, Szilvia Bősze, Rita Oláhné Szabó, Laszlo Drahos, Konstantin Karaghiosoff
Beta-Aminophosponates obtained by the Michael addition of primary amines to the double bond of diethyl vinylphosphonate proved to be suitable starting materials (amine components) in the Kabachnik–Fields reaction with formaldehyde...
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Sustainable preparation of 2-acylbenzothiazoles under the cooperation of ionic liquids and microwave irradiation

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00315B, Paper
Shoushun Wang, Mengjie Liu, Yiyuan Yue, Xiude Hu, Yalin Zhang, Guodong Shen, Ruiguo Dong, Lilong Shi, Bing Yu, Xianqiang Huang
A series of 2-acylbenzothiazole derivatives were sustainably synthesized for the first time under the cooperation of ionic liquids and microwave irradiation, metal- and extra-additives-free conditions.
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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.
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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.
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Visible light-driven photocatalytic sulfonative oxidation of benzyl secondary amines

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00348A, Paper
Yong-Xiang Lü, Xinqian Wang, Ying-Ming Pan, Keyume Ablajan
A method for the α-oxidation and sulfonation of benzyl secondary amines was developed utilizing Ir(III) or Eosin Y as the photocatalyst in the presence of O2 as a green oxidant....
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Piloting through the pandemic

How AirAsia India innovated with a distance-learning training programme for its cockpit crew




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Tech adoption will not lead to loss of jobs

Every half per cent increase in GDP requires 10 per cent growth in travel




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Another tough year for airlines

Ukraine-Russia conflict to result in the steep escalation of aircraft leasing charges




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Do pilots really need to be good at maths?

Being accurate with calculations can never go wrong




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Slots scarcity hits Indian airlines’ flight roadmap

The solution demands a comprehensive expansion of airside capacity across the country, but that has not materialised




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Yoke vs. sidestick: Jury still out on what works best for pilots

Why do Airbus commercial aircraft have sidesticks and Boeing have yokes as control units?




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Blockchain: Piloting the future of aviation

Enables effective solutions that positively impact industry players and end consumers




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Post-pandemic, OTAs are coming of age

Are they finally paying up or paying off?