醛胺缩合

多胺的改性方法有很多，Mannich缩合是一种比较简单而有效的改性方法，它是利用酚、醛、胺的缩合反应，达到对多胺进行改性的目的。

Mannich condensation is a relatively simple and effective modification method , which is through the condensation reaction of phenol , aldehyde and amine , to achieve the purpose of modification of polyamine .

三种芳醛与芳胺缩合，合成了14个希夫碱化合物，讨论了催化剂、空间效应对缩合反应的影响。

Fourteen Schiff bases are prepared from three kinds of benzaldehydes and aromatic amines . The influence of catalyst and space effect on condensation are discussed .

微波干法催化醛酮与胺的缩合反应

Aldehydes or Ketones Condensing Reaction with Amines on the Alumina Supporter Under Microwave Irradiation

以脱水剂促进香茅醛与二乙醇胺缩合，生成稳定缩合物，产率达97.9%；

The condensation of citronellal with diethanolamine was promoted in the existence of dehydrating agent , producing a stable condensate , the yield was 97 . 9 % ;