Production of quaternary ammonium salt of hydroxycarboxylic...

Details Production of quaternary ammonium salt of hydroxycarboxylic... Production of quaternary ammonium salt of hydroxycarboxylic...

2005-11-22

2005-11-22

Richter, Johann (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S282000, C564S283000, C564S288000, C564S291000

Reexamination Certificate

active

06967258

ABSTRACT:
A quaternary ammonium hydroxycarboxylate is produced by quaternizing a tertiary amine with a hydroxycarboxylic ester represented by the following Formula 1:wherein R1to R3are as defined in the disclosure. By using only one tertiary amine having at least one substituent different from R1of the ester moiety of the hydroxycarboxylic ester and by controlling the reaction conditions, a mixture of quaternary ammonium hydroxycarboxylates having different quaternary ammonium ions is produced. By reacting an inorganic acid with the quaternary ammonium hydroxycarboxylate or its mixture, a quaternary ammonium salt of inorganic acid or its mixture is produced.

REFERENCES:
patent: 3190919 (1965-06-01), Swanson
patent: 6066763 (2000-05-01), Hayakawa
patent: 6784317 (2004-08-01), Kanbara et al.
patent: 2067196 (1981-01-01), None
patent: 2 067 196 (1981-07-01), None
J. Heterocyclic Chem., 1996, vol. 3, p. 129-136.
European Search Report, dated Sep. 3, 2002, for EP 02 008898.
Kametani, T, et al., “Novel Methylation III (1a). Methylation of Tertiary Amines such as Pyridine and Isoquinoline with Alkyl Carboxylates (1b)”, Journal of Heterocyclic Chemistry, vol. 3, 1996, pp. 129-136.
Abstract for JP 2000 226360, Aug. 15, 2000.
Abstract for JP 11-315055, Nov. 16, 1999.

Affiliated with

Also associated with

Rating

Production of quaternary ammonium salt of hydroxycarboxylic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of quaternary ammonium salt of hydroxycarboxylic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of quaternary ammonium salt of hydroxycarboxylic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3516826