申请人:NOURYON CHEMICALS INTERNATIONAL B.V.
公开号:US20210198182A1
公开(公告)日:2021-07-01
A process to prepare an amine-functional ester of an amino carboxylic acid includes the step of reacting a polyol of the formula (I)
HO-A-OH (I)
where A is a carbon chain with about 2 to about 36 carbon atoms that is aliphatic linear or branched, saturated or unsaturated, or aromatic, or CH
2
CH(OH)CH
2
, CH
2
C(CH
2
OH)
2
CH
2
, CH
2
C(CH
2
OH)(CH
3
)CH
2
, CH
2
C(CH
2
OH)(CH
2
CH
3
)CH
2
, p-tetrahydrofuran, erythritol or an ester of di- or tricarboxylic acids with ethylene or propylene glycol, and wherein A can optionally be alkoxylated or reacted with hydroxy carboxylic acids, with an aminocarboxylic acid of formula II or its cyclic amide of the formula III, where m is an integer of about 1 to about 8 in formula II and about 3 to about 8 in formula III, each R independently is hydrogen or a C1-C4 alkyl group, or CH
2
CH
2
COOH, or CH
2
COOH, or (CH
2
)
4
NH
2
, in the presence of a Brønsted-Lowry acid.
制备氨基羧酸酯的过程包括以下步骤:将具有以下式(I)的多元醇与式(II)的氨基羧酸或其环状酰胺的反应,其中在式(I)中,A是一个碳链,含有大约2至大约36个碳原子,可以是脂肪族的直链或支链、饱和或不饱和、芳香族,或CH2CH(OH)CH2、CH2C(CH2OH)2CH2、CH2C(CH2OH)(CH3)CH2、CH2C(CH2OH)(CH2CH3)CH2、对四氢呋喃、赤藓醇或二酸或三酸酯与乙二醇或丙二醇的酯,其中A可以选择性地与烷氧基化或与羟基羧酸反应,在Brønsted-Lowry酸存在下进行。