An unexpected inversion of enantioselectivity in the proline catalyzed intramolecular Baylis–Hillman reaction
摘要:
A highly enantioselective proline catalyzed intramolecular Baylis-Hillman reaction of hept-2-enedial is reported. Addition of imidazole to the mixture results in art unusual inversion of enantioselectivity. (c) 2005 Elsevier Ltd. All rights reserved.