A method of preparing an amino alcohol of the formula ##STR1## where R.sub.1 is H, lower alkyl or R.sub.2, R.sub.2 is R.sub.3 CHOH in which R.sub.3 is H, alkyl or aryl. R.sub.3 preferably is hydrogen, lower alkyl or monocyclic aryl such as phenyl. The inventive method involves the reaction of halonitroalcohol with hydrogen in the presence of methanol, a suitable buffering agent such as ammonia, and a hydrogenation catalyst to form amino alcohol salt, neutralizing the amino alcohol salt, and recovering the resultant amino alcohol.
一种制备
化学式为##STR1##的
氨基醇的方法,其中R.sub.1为H、较低的烷基或R.sub.2,R.sub.2为R.sub.3 CHOH,其中R.sub.3为H、烷基或芳基。R.sub.3最好是氢、较低的烷基或单环芳基,如苯基。这种创新方法涉及卤代硝基醇与氢在
甲醇存在下、适当的缓冲剂如
氨和氢化催化剂反应,形成
氨基醇盐,中和
氨基醇盐,然后回收所得的
氨基醇。