TFFH as an Excellent Reagent for Acylation of Alcohols, Thiols and Dithiocarbamates
作者:Jørn B. Christensen、Michael Pittelkow、Fadhil S. Kamounah、Ulrik Boas、Brian Pedersen
DOI:10.1055/s-2004-831250
日期:——
A convenient and easy procedure to synthesize esters and thioesters from the corresponding carboxylic acid using TFFH as the coupling reagent is described. The preparation of N-acyl-dithiocarbamates from carboxylic acids and 1,3-thiazolidine-2-thione with TFFH as the coupling reagent is also described.
2-Chloro-1,3-dimethylimidazolinium Chloride. 1. A Powerful Dehydrating Equivalent to DCC
作者:Toshio Isobe、Tsutomu Ishikawa
DOI:10.1021/jo990210y
日期:1999.9.1
2-Chloro-1,3-dimethylimidazolinium chloride (DMC) (3) can act as a powerful dehydrating agent, replacing DCC (1) under nearly neutral conditions. Its application to acylation and dehydration is described.
Synthesis and Antimicrobial Activities of Some Heterocyclic Systems from 2-Furoyl Isothiocyanate
作者:Magdy M. Hemdan
DOI:10.1080/10426500902893209
日期:2010.2.23
2-Furoyl isothiocyanate (1) is used as a building block in synthesizing different heterocyclicsystems of anticipated biological activities. Thus, isothiocyanate 1 was reacted with different nucleophilic reagents to produce five- and six-membered heterocyclicsystems such as 1,2,4-triazoline, thiadiazolidine, quinazoline, benzothiazole, benzoxazole, benzimidazole, thiazolidine, and imidazolidine. The