Synthesis of Enantioenriched Propargylic Alcohols Related to Polyketide Natural Products. A Comparison of Methodologies
作者:James A. Marshall、Matthew P. Bourbeau
DOI:10.1021/ol034918h
日期:2003.9.1
Applications of methodology for the synthesis of propargylic alcohols related to polyketide natural products were examined. Noyori's asymmetric transfer hydrogenation of alpha-chiral alkynones was found to be highly selective and catalyst controlled. Additions of TMS acetylene to alpha-chiral aldehydes, catalyzed by a Ti(O-i-Pr)(4)-BINOL complex, were diastereoselective but substrate dependent.