3-(Benzothiazol-2-ylthio)- and 3-(Benzoxazol-2-ylthio)-1,2-benzisothiazole 1,1-Dioxides; New, Reactive Condensing Agents for the Synthesis of Amides and Esters
Selective approach to thioesters and thioethers via sp<sup>3</sup> C–H activation of methylarenes
作者:J. Feng、G.-P. Lu、C. Cai
DOI:10.1039/c4ra09450f
日期:——
Novel CDC approaches for the synthesis of thioesters and thioethers was developed via sp3 C–H activation of methylarenes and subsequent functionalization.
Organic Reactions in Ionic Liquids: An Efficient Method for Selective S‐Alkylation of 2‐Mercaptobenzothia(xa)zole with Alkyl Halides
作者:Yi Hu、Zhen‐Chu Chen、Zhang‐Gao Le、Qin‐Guo Zheng
DOI:10.1081/scc-120037917
日期:2004.12.31
(BmimPF6) and 1‐butyl‐3‐methylimidazolium tetrafluoroborate (BmimBF4) are used as reusable reaction medium in the selective S‐alkylation of 2‐mercaptobenzothia(xa)zole with alkylhalides in the presence of potassium carbonate. This procedure is convenient, efficient, and generally gives rise to the S‐alkylated product exclusively.
Copper-Catalyzed Coupling of Acyl Chlorides with <i>gem</i>-Difluorinated Organozinc Reagents via Acyl Dithiocarbamates
作者:Salavat S. Ashirbaev、Vitalij V. Levin、Marina I. Struchkova、Alexander D. Dilman
DOI:10.1021/acs.joc.7b02598
日期:2018.1.5
A cross-coupling of acyl chlorides with gem-difluorinated organozincreagents affording difluorinated ketones is described. In the reaction, acyl chlorides are first treated with potassium dithiocarbamate to generate S-acyl dithiocarbamates, which couple with organozincs in the presence of a copper(I) catalyst.
SYNTHESIS OF 2-MERCAPTOBENZOTHIAZOLE AND OF 2-MERCAPTO-BENZIMIDAZOLE DERIVATIVES USING POLYMER-SUPPORTED ANIONS
作者:D. S. Dalal、N. S. Pawar、P. P. Mahulikar
DOI:10.1080/00304940509354982
日期:2005.12
2'-Dithiobis(benzothiazole) is used as a fungicide, insecticide, sensitizer and anti-scorching agent in vulcanization of rubber.5 2-Mercaptobenzimidazole (MBI) is an important chemical for many industrial applications, such as an inhibitor for copper plating, antioxidant for plating rubber compounds, adsorbent for heavy metal, antiseptic and medical substances.6-8 MBI is used as a non-staining secondary antioxidant
A novel transacylation method for the synthesis of α-N-acyl-β-lactones; application to (±)-diacetylobafluorin and (+)-SQ 26,517
作者:M. Narayana Rao、Anil G. Holkar、Nagaraj R. Ayyangar
DOI:10.1039/c39910001007
日期:——
Stereoselective synthesis of (±)-diacetylobafluorin and (+)-SQ 26,517 has been accomplished via transacylation of α-N-(2-nitrophenyl)sulphenyl-β-lactones with 2-acylmercaptobenzothiazoles.