SYNTHESIS;
HYDROXYPER(POLY)FLUOROALKYL PYRROLES;
NMR SPECTROSCOPY;
IR SPECTROSCOPY;
MASS SPECTROMETRY;
D O I:
10.1016/0022-1139(95)03292-L
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Treatment of ethyl alpha-per(poly)fluoroalkyl acetates 1 or ethyl alpha-iodo-beta-per(poly) fluoroalkyl acrylates 2 with hydrazine gives 3-hydroxy-5-per(poly)fluoroalkyl pyrazoles 3 in excellent yield. The effect of halogens on the pert polyfluoroalkyl chain and the reaction conditions were studied.