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Nader NoshiranZadeh

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.



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