The invention relates to a continuous method for producing hydroxycarboxylic acid amides, according to which at least one hydroxycarboxylic acid of formula (I)
HO—R
3
—COOH (I)
wherein R
3
is an optionally substituted aliphatic hydrocarbon group comprising between 1 and 100 carbon atoms, is reacted with at least one amine of formula (II)
HNR
1
R
2
(II)
wherein R
1
and R
2
are independently hydrogen or a carbon group comprising between 1 and 100 C atoms, to form an ammonium salt, and said ammonium salt is then reacted to form a hydroxycarboxylic acid amide, under microwave irradiation in a reaction pipe, the longitudinal axis of the pipe being oriented in the direction of propagation of the microwaves of a monomode microwave applicator.
本发明涉及一种连续生产羟基
羧酸酰胺的方法,其中至少一种
化学式为(I) HO-R3-COOH的羟基
羧酸(其中R3是一个含有1至100个碳原子的可选取代的脂肪烃基),与至少一种
化学式为(II) HNR1R2的胺反应,其中R1和R2分别是氢或含有1至100个C原子的碳基,形成一种
铵盐,然后在反应管中通过微波辐射,在单模微波应用器的微波传播方向上,将所述
铵盐反应生成羟基
羧酸酰胺。