Synthesis of Tetrahydropyrans from Propargyl Alcohols and 1,1-Cyclopropanediesters: A One-Pot Ring-Opening/Conia-ene Protocol
作者:Andrew B. Leduc、Terry P. Lebold、Michael A. Kerr
DOI:10.1021/jo9019122
日期:2009.11.6
Lewis acid catalyzed ring opening of 1,1-cyclopropanediesters by the hydroxyl group of a propargylalcohol sets up a subsequent Conia-ene cyclization to afford substituted tetrahydropyrans in a one-pot, high-yielding procedure.