A number of steroidal hydroxy esters have been synthesized by the palladium
-catalyzed carbonylation of the corresponding 16,17-unsaturated substrates
in the presence of diols. The reaction takes place in a highly chemo- and r
egioselective manner and the new compounds obtained may serve as starting m
aterials for further functionalization of the steroidal skeleton. (C) 1999
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