Gewald-type reaction of double activated 2,3-diarylcyclopropanes with elemental sulfur for synthesis of polysubstituted 2-aminothiophenes
摘要:
A new synthetic procedure for the polysubstituted 2-aminothiophenes was developed via Gewald type ring-opening reaction of 1,1-dicyano-2,3-diarylcyclopropanes with elemental sulfur in N,N-dimethylformamide in the presence of morpholine as base. (C) 2014 Elsevier Ltd. All rights reserved.