view:21606 Last Update: 2019-1-30
Nader Noshiranzadeh, Ali Ramazani, Amir Tofangchi Mahyari, Katarzyna ´Slepokura and Tadeusz Lis|
Stereoselective Synthesis and Single Crystal X-Ray Structures of Some Sterically Congested Electron-poor N-Vinyl Pyrazole Derivatives
A one-pot synthesis of sterically congested electron-poor N-vinyl pyrazoles in fairly good yields1H, and 13C NMR spectroscopy, and single by the reaction of ethyl 3-phenyl-2-propynoate, pyrazoles and triphenylphosphine is reported. The structures of these compounds were confirmed by IR, crystal X-ray structure determination. The structural analysis of the products indicated that the reaction is completely regio- and stereoselective.