Facile one-pot synthesis of 4-substituted semicarbazides
作者:Andrey V. Bogolubsky、Yurii S. Moroz、Pavel K. Mykhailiuk、Yurii V. Dmytriv、Sergey E. Pipko、Liudmyla N. Babichenko、Anzhelika I. Konovets、Andrey Tolmachev
DOI:10.1039/c4ra12425a
日期:——
and disubstituted semicarbazides was prepared in a one-pot two-step approach. The method includes formation of a carbamate from bis(2,2,2-trifluoroethyl)carbonate or 2,2,2-trifluoroethylchloroformate and a primary or secondary amine and subsequent interaction of the carbamate with hydrazine to result in a semicarbazide. The approach allowed to obtain 4-substituted semicarbazides on a large scale in