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

By www.thehindubusinessline.com
Published On :: Sat, 09 Nov 2024 10:27:36 +0530

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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AppLovin CEO once spurned by VC firms now worth $11 billion

By www.thehindubusinessline.com
Published On :: Sat, 09 Nov 2024 14:41:30 +0530

Shares of Palo Alto, California-based AppLovin have surged seven-fold this year, giving co-founder Adam Foroughi a net worth of $10.9 billion


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Customers no longer reluctant to adopt AI, says Hitachi Vantara’s Hemant Tiwari

By www.thehindubusinessline.com
Published On :: Sun, 10 Nov 2024 16:46:49 +0530

Even non-tech companies have AI requirements. If you’re manufacturing a transformer, a train engine, or a jet engine, AI goes into making them efficient: Tiwari


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Afternoon with a poet

By www.thehindu.com
Published On :: Thu, 30 Jun 2016 10:56:56 +0530

Everyone was overjoyed when Mona athai won the prize for her short story. But they didn’t realise how one neighbour would react.


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Trick, no treat

By www.thehindu.com
Published On :: Thu, 07 Jul 2016 15:44:46 +0530

YW storyteller contest: We were flooded with stories for the YW Storyteller contest announced on June 24. Here are the five winning entries. Congratulations!


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Well-dressed notes

By www.thehindu.com
Published On :: Thu, 14 Jul 2016 14:10:53 +0530

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


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Honouring Khulu

By www.thehindu.com
Published On :: Fri, 15 Jul 2016 15:13:42 +0530

On July 18, we celebrate Mandela Day. A day not only to honour the man himself, but also a chance for us to join the global movement to make the world a better place.


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Exploring the self-assembly dynamics of novel steroid–coumarin conjugates: a comprehensive spectroscopic and solid-state investigation

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00192C, Paper
Open Access
Claudia M. Ramírez-Lozano, Ma. Eugenia Ochoa, Pablo Labra-Vázquez, Arturo Jiménez-Sánchez, Norberto Farfán, Rosa Santillan
The design, synthesis, and characterization of seven novel steroid–coumarin conjugates with diverse steroidal nuclei as lipophilic fluorescent materials for bioimaging applications are presented.
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Electrochemical selective divergent C–H chalcogenocyanation of N-heterocyclic scaffolds

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00448E, Communication
Kusum Ucheniya, Pooja Kumari Jat, Amreen Chouhan, Lalit Yadav, Satpal Singh Badsara
An electrochemical direct selective C–H chalcogenocyanation approach for indolizine derivatives under mild conditions has been described.
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Fine bubble technology for the green synthesis of fairy chemicals

By pubs.rsc.org
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Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00237G, Paper
Arun Kumar Manna, Mizuki Doi, Keiya Matsuo, Hiroto Sakurai, Ch. Subrahmanyam, Kohei Sato, Tetsuo Narumi, Nobuyuki Mase
Fairy chemicals (FCs) such as 2-azahypoxanthine (AHX), isolated from naturally occurring sources, are potential phytohormones in plants and efficiently synthesized by fine bubble technology consisting of micro- to nano-sized bubbles.
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Synthesis of 3,5-disubstituted isoxazoles by domino reductive Nef reaction/cyclization of β-nitroenones

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00232F, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Muhammad Ehtisham Ibraheem Khan, Tomas Lighuen Cassini, Marino Petrini, Alessandro Palmieri
β-Nitroenones were converted into 3,5-disubstituted isoxazoles via a domino reaction promoted by tin(II) dichloride. The protocol efficiently works under both microwave and flow conditions.
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Coumarin–azasugar–benzyl conjugates as non-neurotoxic dual inhibitors of butyrylcholinesterase and cancer cell growth

By pubs.rsc.org
Published On ::

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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A water mediated multicomponent reaction for the synthesis of novel spirooxindole derivatives and their antifungal activity

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00256C, Paper
Min Zhang, Liang Shi, Li Chen, Zhengyu Liu, Ting Zhao, Chunyin Zhu, Liuqing Yang
A total of 27 novel spirooxindoles were synthesized through a water mediated three-component reaction of isatin, 4-aminocoumarin, and 1,3-cyclodicarbonyl compounds. Several compounds showed excellent antifungal activity against Physalospora piricola.
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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

By pubs.rsc.org
Published On ::

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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Dehydrative alkynylation of 3-hydroxyisoindolinones with terminal alkynes for the synthesis of 3-alkynylated 3,3-disubstituted isoindolinones

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00190G, Paper
Kai-Cheng Yang, Shi-Lu Zheng, Zhong Wen, Yu-Shan Zhang, Hai-Liang Ni, Long Chen
A HOTf or Fe(OTf)3-catalyzed dehydrative alkynylation of 3-hydroxyisoindolinones with terminal alkynes was developed, which represents a brand-new procedure for the synthesis of 3-alkynylated 3,3-disubstituted isoindolinones.
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Diastereoselective synthesis of functionalized spiroindolines via intramolecular ipso-iodocyclization/nucleophile addition cascade reactions of indole-tethered ynones

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00112E, Paper
Debojyoti Bag, Sanghapal D. Sawant
Herein, we describe a highly diastereoselective approach for synthesizing polyfunctionalized spiroindolines from indolyl-ynones involving an ipso-iodocyclization/nucleophile addition cascade.
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Copper catalyzed dehydrogenative cyclization, alkenylation towards dihydroquinolinones

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00134F, Paper
Pari Keerthana, Fazlur-Rahman Nawaz Khan
An efficient copper-catalysized one-pot sequential synthesis of alkenylated quinolinyldihydroquinolinones is reported utilizing ketones, 1,3-cyclohexanediones, and benzyl alcohols via dehydrogenative cyclisation, followed by alkenylation. This highly straightforward method provides a mild...
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On the mechanism of carboxylate elimination from carbohydrate monoester-derived radicals

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00241E, Communication
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Julia A. Turner, Hendrik Zipse, Mark S. Taylor
Computational analysis of the HAT-induced expulsion of carboxylic acids from monoacylated pyranosides implicates concerted elimination through a hydrogen-bonded transition state.
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An efficient synthesis of mono-, di-, and tri-substituted 1,3-thiazoles employing functionalized thioamides as thiocarbonyl precursors

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00229F, Paper
Kalleshappa Sheela, Chikkappaiahnayaka Santhosh, Krishna Ravi Singh, Kalleshappa Sharath, Maralinganadoddi P. Sadashiva
Herein, we report an efficient strategy to synthesize functionalized 1,3-thiazoles using alkyl 2-amino-2-thioxoacetates.
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HFIP-mediated C-3-alkylation of indoles and synthesis of indolo[2,3-b]quinolines & related natural products

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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.
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Synthesis of Asp-based lactam cyclic peptides using an amide-bonded diaminodiacid to prevent aspartimide formation

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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.
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Asymmetric total synthesis of humulane sesquiterpenoids alashanoids B, C, E, and F and 2,9-humuladien-6-ol-8-one

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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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Covalently linked thieno[2,3-b]thiophene-fullerene dimers: synthesis and physical characterization

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, 22,2978-2984
DOI: 10.1039/D4OB00027G, Paper
Abdulrahman M. Alazemi, Mohammad H. BinSabt, Hamad M. Al-Matar, Alan L. Balch, Mona A. Shalaby
Linked thieno[2,3-b]thiophene-fullerene Dimers.
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Asymmetric synthesis of the fully functionalized six-membered A-ring of siphonol A

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, 22,2958-2962
DOI: 10.1039/D4OB00104D, Communication
Ying Sun, Shaomin Fu, Bo Liu
The asymmetric synthesis of the fully functionalized six-membered A-ring of siphonol A is presented.
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Vinylogous and stereoselective domino synthesis of pyrano[2,3-c]pyrroles from alkylidene meldrum's acids

By pubs.rsc.org
Published On ::

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.
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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

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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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Unusual immunosuppressive pyridine-containing bisnor- (c23), tetranor- (c21) and pentanor- (c20) sesterterpenoids from Tibetan Leucosceptrum canum

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, 22,3019-3024
DOI: 10.1039/D4OB00334A, Paper
Man Li, Ling Feng, Han Zhang, Yan-Chun Liu, Ting-Ting Zhou, Yu Zheng, Kai Guo, Yan Liu, Sheng-Hong Li
Six unusual pyridine-containing bisnor- (C23), tetranor- (C21) and pentanor- (C20) sesterterpenoids were obtained from the medicinal plant Leucosceptrum canum of Tibetan origin. The immunosuppressive activities of these sesterterpenoids were observed.
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Photochromism of phenazine-2,3-diol derivatives through excited state intermolecular proton transfer based on keto–enol tautomerization

By pubs.rsc.org
Published On ::

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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BBr3-mediated dearomative spirocyclization of biaryl ynones: facile access to spiro[5.5]dienones

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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.
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Exploring the mechanism of the reductive amination of acetophenones via Borch approach: the role of the acid catalyst

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00160E, Paper
João Pedro Albuquerque Souza, Amanda Krauskopf Jacobs, Leandro Piovan, Renan Borsoi Campos
The energetic viability of several mechanistic variations of the reductive amination of acetophenones via the Borch approach was reexamined through density functional theory calculations. The crucial involvement of the acid...
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Cu(OTf)2/HFIP catalyzed regioselective cycloisomerization of indole-C3-functionalized alkynols to carbazoles

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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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Design, synthesis, biological evaluation and molecular docking studies of quinoline-anthranilic acid hybrids as potent anti-inflammatory drugs

By pubs.rsc.org
Published On ::

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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Discovery of selective monosaccharide receptors via dynamic combinatorial chemistry

By pubs.rsc.org
Published On ::

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.
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TEMPO/PhI(OAc)2 promotes the α-aminophosphinoylation of alcohols with amines and H-phosphine oxides in aqueous medium

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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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N-Functionalization of beta-aminophosphonates; Cytotoxic effect of the new derivatives

By pubs.rsc.org
Published On ::

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

By pubs.rsc.org
Published On ::

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.
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Efficient synthesis of SCF3-containing 3-alkenylquinoxalinones via three-component radical cascade reaction

By pubs.rsc.org
Published On ::

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00363B, Paper
Si-Yu Wang, Chu Liu, Wei Yang, Zhong-Ying Tian, Lin Yuan, Long-Yong Xie
A three-component cascade reaction of quinoxalinones, alkynes and AgSCF3 toward complete E-selective SCF3-containing 3-alkenylquinoxalinones was developed.
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Why Mount Everest is a no-fly zone

By www.thehindubusinessline.com
Published On :: Sun, 25 Jul 2021 17:11:53 +0530

Hurricane-force winds and frequent snowstorms are obstacles


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Pandemic: Contactless technology on an overdrive

By www.thehindubusinessline.com
Published On :: Sun, 19 Sep 2021 15:50:25 +0530

As demand for travel rises, industry must meet it while ensuring passenger safety


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Tech adoption will not lead to loss of jobs

By www.thehindubusinessline.com
Published On :: Sun, 28 Nov 2021 18:17:53 +0530

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


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Another tough year for airlines

By www.thehindubusinessline.com
Published On :: Sun, 06 Mar 2022 22:00:00 +0530

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


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No turning back

By www.thehindubusinessline.com
Published On :: Sun, 20 Mar 2022 21:57:00 +0530

If no action is taken, aviation’s contribution towards greenhouse gas emissions will increase


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Travel now, pay later

By www.thehindubusinessline.com
Published On :: Sun, 10 Jul 2022 16:50:00 +0530

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


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