Heterocyclization of 2-chloro-1-cyano-1-diethoxyphosphoryl-2-trifluoromethylethylene and 2-chloro-2-chlorodifluoromethyl-1-cyano-1-diethoxyphosphorylethylene
作者:A. F. Shidlovskii、A. S. Peregudov、B. B. Averkiev、M. Yu. Antipin、N. D. Chkanikov
DOI:10.1007/s11172-005-0073-2
日期:2004.9
and 5-aminopyrazoles were studied. Alkenes 2a, b can serve as precursors of aminopyrazoles, pyrimidines, pyrido[1,2-a]pyrimidines, and pyrazolo[1,5-a]pyrimidines modified with the fluoroalkyl and diethoxyphosphoryl groups. Intermediates of some heterocyclization reactions were detected by NMRspectroscopy. The structures of the compounds were confirmed by X ray diffraction analysis.