Jd. Winkler et Bc. Hong, TRANSANNULAR RADICAL REACTIONS IN BICYCLOALKANES WITH INSIDE-OUTSIDE STEREOCHEMISTRY - AN UNUSUAL BRIDGEHEAD HYDROXYLATION, Tetrahedron letters, 36(5), 1995, pp. 683-686
Barton decarboxylation of a bicyclic ketoacid with trans-intrabridgead
stereochemistry produces this net epimerization of the intrabridgehea
d stereochemistry, a result that cannot be achieved under acidic or ba
sic equilibrating conditions.