Graphene oxide‐catalyzed C
<sub>Sp3</sub>
–H activation of methylarenes in aqueous medium: A unified metal‐free access to amides and benzimidazoles
作者:Anshu Dandia、Dinesh Kumar Mahawar、Ruchi Sharma、Ranveer Singh Badgoti、Kuldeep S. Rathore、Vijay Parewa
DOI:10.1002/aoc.5232
日期:2019.11
Graphene oxide (GO)‐catalyzed selective synthesis of amides via CSp3–H activation of methylarenes and consequent C–N bond formation with anilines under aqueous medium has been described. Oxygen functionality allied with GO surface played a dual role both as acid catalyst and oxidizingagent to some extent. However, GO has a copious effect on the reaction, shown by a high TOF value with TBHP as co‐oxidant
The present invention relates to certain substituted phenyl oxazolidinones and to processes for the synthesis of the same. This invention also relates to pharmaceutical compositions containing the compounds of the present invention as antimicrobials. The compounds are useful antimicrobial agents, effective against a number of human and veterinary pathogens, including gram-positive aerobic bacteria, for example, multiple-resistant
staphylococci, streptococci
and
enterococci
as well as anaerobic organisms, for example,
Bacterioides
spp. and
Clostridia
spp. species, and acid fast organisms, for example,
Mycobacterium tuberculosis, Mycobacterium avium
and
Mycobacterium
spp.
B<sub>2</sub>(OH)<sub>4</sub>-Mediated Reductive Transamidation of <i>N</i>-Acyl Benzotriazoles with Nitro Compounds En Route to Aqueous Amide Synthesis
作者:Jin Bai、Shangzhang Li、Riqian Zhu、Yang Li、Wanfang Li
DOI:10.1021/acs.joc.2c02995
日期:2023.3.17
We herein developed a reductive transamidation reaction between N-acyl benzotriazoles (AcBt) and organic nitro compounds or NaNO2 under mild conditions. This protocol employed the stable and readily available B2(OH)4 as the reducing agent and H2O as the ideal solvent. N-Deuterated amides can be synthesized when conducting the reaction in D2O. A reasonable reactionmechanism involving bond metathesis
我们在此开发了N -酰基苯并三唑 (AcBt) 与有机硝基化合物或 NaNO 2在温和条件下的还原转酰胺基反应。该方案使用稳定且易于获得的 B 2 (OH) 4作为还原剂,使用 H 2 O 作为理想溶剂。当在 D 2 O中进行反应时,可以合成N-氘代酰胺。提出了一个合理的反应机制,包括 AcBt 酰胺和氨基硼酸中间体之间的键复分解,以解释 AcBt 的独特性质。
[EN] OXAZOLIDINONE DERIVATIVES AS ANTIMICROBIALS<br/>[FR] DERIVES D'OXAZOLIDINONE UTILISES COMME AGENTS ANTIMICROBIENS
申请人:RANBAXY LAB LTD
公开号:WO2006038100A1
公开(公告)日:2006-04-13
The present invention relates to certain substituted phenyl oxazolidinones and to processes for the synthesis of the same. This invention also relates to pharmaceutical compositions containing the compounds of the present invention as antimicrobials. The compounds are useful antimicrobial agents, effective against a number of human and veterinary pathogens, including gram-positive aerobic bacteria, for example, multiple-resistant staphylococci, streptococci and enterococci as well as anaerobic organisms, for example, Bacterioides spp. and Clostridia spp. species, and acid fast organisms, for example, Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium spp.
Amide-assisted radical strategy: metal-free direct fluorination of arenes in aqueous media
作者:Deqiang Liang、Yanni Li、Shulin Gao、Renlun Li、Xiangguang Li、Baoling Wang、Hai Yang
DOI:10.1039/c7gc00356k
日期:——
A metal- and initiator-free direct fluorination of arenes with the assistance of an amide group is developed. This reaction proceeded under simple aqueous conditions with good functional group tolerance and ortho–para selectivity, and is highly practical because it could be readily scaled up to a multigram-scale. At this stage, an exclusive mechanism could not be proposed, and several possibilities