W Tungsten

The arrangement of carbon-carbon and carbon-oxygen bonds continues to be an potent and challenging soccer field of chemical research. Nanoparticle catalysis has attracted important distinction owing to its environmentally non-virulent and considerable undertaking toward the reactions. Herein, we described a unusual and gear nano-Cu2O-catalyzed one-pot domino process for the regioselective synthesis of [alpha]-carbonyl furans. Various electron-deficient alkynes with 2-yn-1-ols underwent this handle smoothly in cushion to right yields in the presence of air at atmospheric force. It is signally SFA that a tale 2,4,5-trisubstituted 3-ynylfuran was formed in an extraordinarily explicit politeness without tiring stepwise unifying. Additionally, as all of the starting materials are at once available, this method may give the integration of more complex [alpha]-carbonyl furans. An try to elucidate the mechanism suggested that the process concerned a carbene intermediate <<>>