Ruthenium-Catalyzed Decarboxylative Allylation of Nonstabilized Ketone Enolates
作者:Erin C. Burger、Jon A. Tunge
DOI:10.1021/ol049097a
日期:2004.7.1
Bipyridyl(pentamethylcyclopentadienyl)ruthenium chloride is an efficient catalyst for the formal [3,3] rearrangement of allyl beta-ketoesters. The mechanism of the transformation involves formation of pi-allyl ruthenium intermediates, which are selectively attacked at the more substituted allyl terminus by freely diffusing enolates. Decarboxylation of beta-ketocarboxylates allows generation of enolates under extremely mild conditions.