The Tricarbonylchromium Template for Stereocontrol in Radical Reactions of Arenes
作者:Craig A. Merlic、Joseph C. Walsh
DOI:10.1021/jo001414d
日期:2001.4.1
Chromium tricarbonyl complexed aryl aldeyhydes and ketones underwent Sm(II)-promoted radical lactone formation in the presence of alpha,beta-unsaturated esters to produce diastereomerically pure lactones in good yields. The completely diastereoselective lactone formation involves capture of the benzylic ketyl radical by the ester anti to the chromium tricarbonyl moiety. The relative stereochemistry