Iron Phosphate Catalyzed Asymmetric Cross-Dehydrogenative Coupling of 2-Naphthols with β-Ketoesters
摘要:
Chiral iron phosphate complexes were successfully exploited for asymmetric cross-dehydrogenative coupling reactions between 2-naphthols and beta-ketoester derivatives. On the basis of kinetic studies, it is suggested that iron monophosphate complexes constitute the active catalysts that induce stereoselectivity during the carboncarbon bond-formation step.
Zinc(II) oxide: an efficient catalyst for selective transesterification of β-ketoesters
摘要:
A facile and selective transesterification of beta-ketoesters Using zinc(l]) oxide as catalyst is described. The emphasis has been placed on the reaction of methyl 3-(3,4-dimethoxyphenyl)-3-oxopropanoate with a series of alcohols of different Structures, leading in all cases good to excellent yields. (C) Elsevier Ltd. All rights reserved.