One-pot stereocontrolled cycloalkanone synthesis using 1,3-dithiane 1-oxides
作者:Philip C. Bulman Page、Stephen J. Shutlleworth、Mark B. Schilling、David J. Tapolczay
DOI:10.1016/s0040-4039(00)91839-2
日期:1993.10
Lithium enolates of 2-acyl-1,3-dithiane 1-oxides, generated in one pot from 1,3-dithiane 1-oxide, undergo highly diastereoselective alkylation upon treatment with alkyl iodides; similar in situ treatment of these substrates with diiodoalkanes furnishes the corresponding medium-ring cycloalkanones with extremely high diastereoselectivity and in moderate to good yields.