A Practical Guide for Buffer-Assisted Isolation and Purification of Primary, Secondary, and Tertiary Amine Derivatives from Their Mixture
作者:Guoxiang Ma、Amitabh Jha
DOI:10.1021/op050126m
日期:2005.11.1
A number of reactions involving primary amines such as N-alkylation, reductive amination, Mannich reaction, etc. produce mixtures of primary, secondary, and tertiary amines. The isolation and purification of individual constituents of these mixtures is often carried out by column chromatography or fractional distillation. For an industrial large-scale process, it would be desirable to avoid column
涉及伯胺的许多反应,例如N-烷基化,还原胺化,曼尼希反应等,都会生成伯胺,仲胺和叔胺的混合物。这些混合物中各个成分的分离和纯化通常通过柱色谱法或分馏法进行。对于工业大规模方法,希望避免柱色谱法和蒸馏(如果产物对温度敏感)而又不显着损失产物产率。我们设计了一种优雅的方法,该方法使用相对便宜的pH值不同的缓冲介质来选择性地分离伯,仲和叔胺。