Thermolysis of Geminal Diazido Malonamides: Simple Access to Tetrazoles and Functionalization of In Situ Formed Isocyanates
作者:Kathrin Bensberg、Kevin A. Kunz、Stefan F. Kirsch
DOI:10.1002/ejoc.202300212
日期:2023.5.8
Tetrazole or urea compound: The thermolytical decomposition under microwave irradiation of diazidated malonamides was studied. A variety of different tetrazoles could be synthesized in three steps starting from diethyl malonate. Furthermore, the formation of isocyanates in situ was investigated.
A new practical method for the synthesis of unsymmetrical ureas via high-pressure-promoted condensation of 2,2,2-trichloroethyl carbamates (Troc-carbamates) with amines
A new practical method for the synthesis of unsymmetrical ureas was achieved by condensation between 2,2,2-trichloroethyl carbamates (Troc-carbamates) and primary or secondary amines under high-pressure conditions. (c) 2005 Elsevier Ltd. All rights reserved.