Synthesis of bicyclic alcohols by palladium-catalyzed Et2Zn-mediated intramolecular carbonylpropargylation
作者:Mónica Arrate、José M. Aurrecoechea
DOI:10.24820/ark.5550190.p010.251
日期:——
Propargylic esters derivedfromcyclicketones containing a tethered aldehyde generate bicyclic homopropargyl alcohols upon treatment with Et2Zn in the presence of a catalytic amount of Pd(0). The reaction is thought to involve an intramolecular carbonyl addition of intermediate allenylzinc nucleophilic species generated from the propargylic ester functionality. The resulting trisubstituted bicyclic