Transesterification route to quaternary ammonium substituted car

Details Transesterification route to quaternary ammonium substituted car Transesterification route to quaternary ammonium substituted car

1992-01-29

1992-12-29

Prescott, Arthur C.

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

Organic compounds

Carbonate esters

558265, 558268, 558273, 558276, C07C 6996

Patent

active

051753332

ABSTRACT:
A process is reported for preparation of quaternary ammonium type carbonate esters which are useful as bleach precursors in detergent compositions. The process involves transesterification of low molecular weight carbonates, e.g. diphenyl carbonate, with amino functionalized alcohols, e.g. dialkylaminoalkanol. Preferably the reaction involves transesterification of diphenylcarbonate with the hydroxyl compound followed by removal of phenol. Subsequent thereto the transesterified ester is quaternized with an alkylating agent. Optionally there may be a sulfonation of phenol ester subsequent to the quaternization reaction.

REFERENCES:
patent: 4410464 (1983-10-01), Hallgren
patent: 4440692 (1984-04-01), Kalbacher et al.
patent: 4545999 (1985-10-01), Riemer et al.
patent: 4546000 (1985-10-01), Zanno et al.
patent: 4994594 (1991-02-01), Silva et al.

Affiliated with

Also associated with

Rating

Transesterification route to quaternary ammonium substituted car does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transesterification route to quaternary ammonium substituted car, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transesterification route to quaternary ammonium substituted car will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1888787