123700-67-4Relevant articles and documents
A Synthetic Route to Bicyclic Pyrazolenines via 3-Chloropyrazolines and the Ring Openning of Pyrazolenines to Diazolakenes
Nakano, Yoshihiko,Hamaguchi, Masashi,Nagai, Toshikazu
, p. 5912 - 5919 (2007/10/02)
Treatment of 5,5-disubstituted 3-chloro-1-pyrazolines, derived from the reaction between disubstituted diazomethanes and dimethyl chlorofumarate, with triethylamine gives the corresponding 3,3-disubstituted 3H-pyrazoles in good yield.This method was appli