名称:
Rh(II)-binaphthol phosphate catalysts in the enantioselective intramolecular oxonium ylide formation–[3,2] sigmatropic rearrangement of α-diazo-β-ketoesters
摘要:
The enantioselective intramolecular oxonium ylide formation-[3.2] sigmatropic rearrangement of alpha -diazo-beta -ketoesters 9 using catalytic (1 mol%) dirhodium tetrakisbinaphthol phosphate catalysts 1 and 2 to give benzofuranones 11 in up tu 62% e.e. is described. (C) 2001 Elsevier Science Ltd. All rights reserved.
DOI:
10.1016/s0957-4166(01)00147-1