A hydrogenation catalyst, preferably palladium on a support, preferably alumina or activated charcoal support, is used in the presence of lithium salts, with salts such as the borates being preferred. This provides hydrogenation of precursors to give rise to a stereoselective, such as diastereoselective bias in the product of alkene hydrogenation using the catalyst.
在
锂盐存在的情况下,使用氢化催化剂,最好是载体(最好是氧化铝或
活性炭载体)上的
钯,
硼酸盐等盐是首选。这样就可以对前体进行氢化,使使用该催化剂的烯氢化产物具有立体选择性,如非对映选择性。