SYNTHESIS OF THE CYCLOBUTANE MOIETY OF PROVIDENCIN

摘要

A short and stereoselective synthesis of the protected cyclobutane diol moiety of the natural compound providencin is reported.Key step is the chemo-and stereoselective hydroboration of the silyl-enol ether obtained from commercially available bicyclo[3.2.0]hept-6-en-2-one.