In the transalkylation of tertiary amines, unexpected higher yields are achieved requiring substantially less catalyst and much shorter reaction times at lower reaction temperatures using a homogeneous catalyst in the presence of an alcohol solvent and carbon monoxide. The process may be exemplified by reacting triethylamine and tripropylamine in the presence of a homogeneous triosmiumdodecacarbonyl catalyst, ethanol, and carbon monoxide to prepare diethylpropylamine and ethyldipropylamine.
在三级胺的转烷基化反应中,通过在醇溶剂和
一氧化碳存在下使用均相催化剂,可以在较低的反应温度下获得意外的更高产率,需要更少的催化剂和更短的反应时间。该过程可以通过在存在均相三羟基十二羰基
铑催化剂、
乙醇和
一氧化碳的情况下,反应
三乙胺和
三丙胺来制备
二乙基丙胺和乙基
二丙胺来进行示例。