Regioselective N‐Functionalization of Tautomerizable Heterocycles through Methyl Trifluoromethanesulfonate‐Catalyzed Substitution of Alcohols and Alkyl Group Migrations
作者:Surajit Duari、Subrata Biswas、Arnab Roy、Srabani Maity、Abhishek Kumar Mishra、Aguinaldo R. Souza、Asma M. Elsharif、Nelson H. Morgon、Srijit Biswas
DOI:10.1002/adsc.202101196
日期:2022.2.15
(MeOTf) was found to catalyze the reaction, which revealed the catalytic property of MeOTf. A mechanism was established through experiments as well as DFT calculations wherein the −OH group of alcohols were converted to the corresponding −OMe groups and in situ generated TfOH. The −OMe groups produced underwent TfOH catalyzed −X alkylation (X=O, S) of the heterocycles followed by −X- to −N-alkyl group
A catalyst-free and additive-free method for the synthesis of benzothiazolethiones from <i>o</i>-iodoanilines, DMSO and potassium sulfide
作者:Xiaoming Zhu、Wenguang Li、Xiai Luo、Guobo Deng、Yun Liang、Jianbing Liu
DOI:10.1039/c8gc00477c
日期:——
Under catalyst-free and additive-free conditions, a novel, convenient, environment-friendly method for the synthesis of benzothiazolethiones from o-iodoanilines, K2S and DMSO has been developed.
Activation of nitroso group with thiols. A new transformation of primary amines to organic sulfides or thiols
作者:Yoshio Ueno、Chie Tanaka、Makoto Okawara
DOI:10.1016/s0040-4039(01)81260-0
日期:1984.1
Aliphatic primaryamines reacted with 2-mercaptobenzothiazole in the presence of t-butylnitrite at room temperature to give condensation products, 2-(alkylthio)benzothiazole.
[EN] CYANINE COMPOUND, DYE CONTAINING CYANINE COMPOUND, AND USE OF CYANINE COMPOUND<br/>[FR] COMPOSÉ DE CYANINE, COLORANT CONTENANT LE COMPOSÉ DE CYANINE ET UTILISATION DU COMPOSÉ DE CYANINE<br/>[ZH] 菁类化合物、含菁类化合物的染料以及菁类化合物的应用