Process for preparing polycarboxylic acid imidazolines by conden

Details Process for preparing polycarboxylic acid imidazolines by conden Process for preparing polycarboxylic acid imidazolines by conden

1991-07-22

1992-09-29

Morris, Patricia L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548300, C07D23302

Patent

active

051515229

ABSTRACT:
The present invention provides a process for preparing polycarboxylic acid imidazolines of the general formula: ##STR1## wherein X is --Cl, --OH, --O--SO.sub.3 H, --O--PO.sub.3 H.sub.2, --O--CH.sub.2 --CH.sub.2 --COOH, --NH.sub.2, --NHalk or --N(alk).sub.2, alk being an alkyl radical containing up to 6 carbon atoms, n is a whole number of from 2 to 4, R is a C.sub.8 -C.sub.18 hydrocarbon radical which is straight-chained, branched, saturated or one to three times unsaturated, m is a whole number of from 2 to 5, R' is a hydrogen atom or a carboxyl group and R" is a hydrogen atom or a methyl radical. In the process, a compound of the formula ##STR2## in which R, X and n are as defined above, is condensed with about a 2- to 5-fold excess of acrylic acid, methacrylic acid, maleic acid or a mixture thereof.

REFERENCES:
patent: 4362737 (1982-12-01), Schaefer et al.
patent: 4529803 (1985-07-01), Tomalia et al.
patent: 4544756 (1985-10-01), Patel
B. R. Bluestein et al., "Amphoteric Surfactants", New York, pp. 14-18, 23-29, 42-47 (1982).
H. Hitz et al., "Amphoteric Imidazolinium Surfactant with High Content of Imidazoline Ring," Parfuemerie und Kosmetik, 64, Jan., Nr. 1/83.

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