Stereoselective hydrogenation of methylcyclohex-2-ene-1,4-diols used in the synthesis of ampelomins and deoxy-carbasugars
作者:María Eugenia Lagreca、Ignacio Carrera、Gustavo A. Seoane、Margarita Brovetto
DOI:10.1016/j.tetlet.2013.12.036
日期:2014.1
heterogeneous hydrogenation using Adam’s catalyst, where steric hindrance controlled the stereochemical outcome of the process. On the other hand, for homogeneoushydrogenation of similar olefins using Crabtree’s catalyst, coordination with the allylicalcohols allowed for a controlledhydrogen addition from the more hindered face. In this manner two protocols for the hydrogenation of these types of substrates