Ca. Merlic et Jc. Walsh, COMPLETELY DIASTEREOSELECTIVE RADICAL REACTIONS USING ARENECHROMIUM TRICARBONYL COMPLEXES, Tetrahedron letters, 39(15), 1998, pp. 2083-2086
Reaction of chromium tricarbonyl complexed aryl aldehydes and ketones
with samarium(Il) iodide and methyl acrylate results in formation of c
yclic lactones as single diastereomers. Complete diastereoselectivity
is demonstrated with aldehydes and ketones alpha or beta to the aromat
ic ring with radical coupling directed anti to the chromium tricarbony
l moiety. (C) 1998 Elsevier Science Ltd. All rights reserved.