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




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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




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Additive-free oxychlorination of unsaturated C–C bonds with tert-butyl hypochlorite and water

Org. Biomol. Chem., 2024, 22,3080-3085
DOI: 10.1039/D4OB00003J, Paper
Duyi Shen, Chaoyue Sun, Yun Han, Zhen Luo, Ting Ren, Qin Zhang, Wenting Huang, Jianru Xie, Ying Jia, Mianran Chao
A facile oxychlorination of various alkynes and alkenes with tBuOCl as an alternative chlorine source and H2O as a green oxygen source.
The content of this RSS Feed (c) The Royal Society of Chemistry




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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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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.
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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...
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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.
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Synthesis of Deuteriodifluoromethylthiolated Isocoumarins-1- imines and Isocoumarins Enabled by Multi-Component Reagents System (MCRS)

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00328D, Communication
Xuemin Li, Haofeng Shi, Jiaxin He, Jialiang Wu, Fengxia Sun, Yunfei Du
The combining use of BnSCF2D, mCPBA and Tf2O serves as an efficient multi-component reagents system (MCRS) for the synthesis of deuteriodifluoromethylthiolated isocoumarins-1-imines/isocoumarins via intramolecular cyclization/ deuteriodifluoromethylthiolation of 2-alkynylbenzamide/2-alkynylbenzoates. The approach...
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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.
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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,...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Wanted: A booster dose for airlines

As vaccination numbers increase, airlines and the government look for the middle path to revive the beleagured travel sector




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Travel now, pay later

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




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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




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Amazon's improving retail sales boost third-quarter profit, revenue beats estimates

Like its tech peers, Amazon said it expected higher capital expenditures for the foreseeable future to help develop artificial intelligence software




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Indonesia bans sales of Google phones days after blocking Apple's iPhone 16

Indonesia said it has banned sales of smartphones made by Alphabet's Google due to rules requiring the use of locally manufactured components




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Transformation Stories #4 A New Podcast Interview With Me (Rob Larsen)

Check out yours truly on an episode of Atlas Systems’ Transformation Stories. A hands-on leader and change-maker with 20 years of experience, Rob Larsen remains at the forefront of software-led innovation – in financial services and the larger enterprise world. In this all-new conversation with Atlas Systems, Larsen offers insights into finding the right pace […]




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Will not allow dilution of AIIMS brand: Union Health Minister J. P. Nadda

The Health Minister said no compromises will be made in faculty recruitments or standards of teaching at any of the new AIIMS institutes being set up across the country




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Dietary restriction or good genes: new study tries to unpack which has greater impact on lifespan

If we know that genetics and lifestyle affect how long you live, which one is more important? And how do they interact?




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Should men be allowed into operation theatres when their wives are having a baby? Doctors weigh in after YouTuber’s video sparks controversy

YouTuber Irfan recently posted a video on social media that showed him cutting the umbilical cord of his newborn, in the operation theatre of a private hospital in Chennai; consent of the medical personnel involved to being videoed was another aspect doctors say needs discussion




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Air pollution: Centre warns of the rising ill-effects of deteriorating air quality

In a letter to States and UTs, the Director General of Health Services Atul Goel has said to discourage stubble and waste burning, and spread awareness among people about reducing firecrackers during festivities




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Polio in Pakistan: Another vaccination campaign begins after worrying surge

Pakistan regularly launches such campaigns, but violence targeting the health workers and police assigned to escort them is common




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What is stereotactic radiation therapy for prostate cancer? How does it compare to other treatments?

Stereotactic radiotherapy uses high doses of radiation to target and kill cancer cells; it uses newer machines that can deliver very focused radiation beams




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ICMR invites expression of interest from firms for making anaemia detection device

The council wants to expand the effective screening network of anaemia among different age populations across India




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Tiruchi man with mpox symptoms: Sample has returned negative, says Tamil Nadu Health Minister

The man, who had returned from Sharjah on October 31, was found to have fever during screening on arriving at the Tiruchi airport.




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National Task Force files interim report on safety measures for hospital staff

NTF report has suggested short term, medium, and long term measures to protect doctors and medical staff in their workplaces.




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'Once in a blue moon you get a lottery like Animal'

'It has never happened that all Top 5 songs on Spotify are from one film. On the Ormax list, the Top 9 are from Animal.''The music is good, sure. But everything has taken off with Animal the film.'




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Meet Fighter's Evil Villain!

'Coming out of a burning building with a machine gun in your hand, that is badass because you don't get to do that in real life.'





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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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The Man Behind Bollywood's Blockbuster Horror Films

'People worship Krishna. People don't worship Ved Vyas, who wrote the Mahabharata.''It's a cultural thing because we don't see the heroes behind the screen, we see the heroes who are in front of the screen.'





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60fps scrolling using pointer-events: none

Paul Lewis did an interesting article a while back about avoiding unnecessary paints through disabling hover effects as the user scrolls, which is a great approach. The down side being managing all your hover states through a parent class. UPDATE: I’ve done a follow up article which demonstrates a more robust technique. .hover .element:hover { … Continue reading "60fps scrolling using pointer-events: none"




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How I built my earthin24 twitter bot

At work my team have recently taken over a golang app. To learn a new language I like to build something that keeps my interest and by the nature of exploring something of interest you tend to cover way more surface area of a language this way. 🌏 12pm 25th August – 12pm 26th August … Continue reading "How I built my earthin24 twitter bot"




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OnePlus 13 launched with Snapdragon 8 Gen 4 SoC: Price details, battery and other specifications

While the OnePlus 13 has only been revealed in China so far, speculations are that it will arrive on the global market in the coming months. In India, the phone is expected to be launched in January 2025.




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25 Billion Kilometers and Broken Voice: The Voyager 1 Saga

NASA's Voyager 1 Faces Technical Glitch in Deep Space, says Girish Linganna




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‘Dance matters most’

Actress and up-and-coming dancer Mahalakshmi S. performs in the city today




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Tribute to the master

The recent two-day dance festival organised by Debdhara brought an eclectic mix of Odissi and Kathak recitals on stage.




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Master flautist at work

Celebrating the myriad forms of Lord Krishna




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It doesn’t come on a platter

Manju Barggavee talks about the challenges Kuchipudi faces today and how to overcome them.




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Moving like a master

Kuchipudi dancer Avijit Das shone in parts during his performance in New Delhi.




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Celebrating an alternate style of Odissi

A dance festival-symposium paid tribute to Guru Debaprasad Das who believed that Odissi originated from the tribal and folk traditions.




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Kanak Rele was a doyenne of Mohiniyattam who redefined and reinterpreted the traditional dance form of Kerala

In her passing, Mohiniyattam has lost a crusader who widened its repertoire and gave it a new aesthetics rooted in Kerala




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Apprenticeships can make India’s youth matter

With a target of skilling 500 million people by 2022, apprenticeship will be the key to increasing the employability of youth




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Why marketers need that tech edge

Integration of technology and marketing changes the role of marketers




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Data on how smartphones driving enterprise mobility in India




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When disaster strikes

An effective business continuity plan is key to disaster-proofing your business




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Fostering positive workplace communication

At the core of positive workplace communications is the management of employee relationships.




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Collaborating on a new charter

The pandemic has brought into focus the role of the Chief People Officer, who has to handle unprecedented circumstances that are not covered in the rule book




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Bitter truths in Maharashtra’s sugar fields

The Maharashtra government must create a favourable legal environment that protects the rights of and ensures the safety of seasonal migrant workers in the sugar industry