Delineating origins of stereocontrol in asymmetric Pd-catalyzed α-hydroxylation of 1, 3-ketoesters
…, HS Rzepa, AJP White, D Billen, KK Hii
文献索引:Smith, Alexander M. R.; Rzepa, Henry S.; White, Andrew J. P.; Billen, Denis; Hii, King Kuok Journal of Organic Chemistry, 2010 , vol. 75, # 9 p. 3085 - 3096
Systematic studies of reaction conditions and subsequent optimization led to the identification of important parameters for stereoselectivity in the asymmetric α-hydroxylation reaction of 1, 3-ketoesters. Enantioselectivities of up to 98% can be achieved for cyclic substrates and 88% for acyclic ketoesters. Subsequently, the combination of cyclic/acyclic ketoester, catalyst, and oxidant was found to have a profound effect on reaction rates and ...