Phase transfer catalyst for use in the synthesis of polyol fatty

Details Phase transfer catalyst for use in the synthesis of polyol fatty Phase transfer catalyst for use in the synthesis of polyol fatty

1996-11-15

1998-11-24

Peselev, Elli

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

514 25, 536 185, 536 186, 536115, 536116, 536119, 536120, 536124, A61K 3170, C07H 100

Patent

active

058407030

ABSTRACT:
A reaction mixture for manufacturing polyol fatty acid polyesters comprises a polyol, a fatty acid lower alkyl ester, a base initiator and a phase transfer catalyst. The phase transfer catalyst can be a quaternary ammonium compound, a crown ether, a polyethylene glycol, a polyethylene glycol ether, a polyethylene glycol ester or mixtures thereof. The process of making polyol fatty acid polyesters is carried out at low temperatures and essentially in the absence of a solvent or emulsifier. The polyol fatty acid polyester product stream produced by the foregoing process and reaction mixture has a lower concentration of reaction by-products such as di-fatty ketones and beta-ketoesters and of caramelized by-product which results from the breakdown of the polyol reactant.

REFERENCES:
patent: 3963699 (1976-06-01), Rizzi
Starks, et al., Phase-Transfer Catalysis, Fundamentals, Applications, and Industrial Perspectives, Chapters 1 and 2, Chapman & Hall, 1994.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition, vol. 5, pp. 374-383, Catalysis, Phase-Transfer, 1979.
Stark, Charles, Selecting a phase transfer catalyst, Chemtech, pp. 110-117, Feb. 1980.
Brunelle, Daniel J., Stable Catalysts for Phase Transfer at Elevated Temperatures, Phase-Transfer Catalysis, New Chemistry, Catalysts, and Applications, Jul. 1986.
Dehmlow, Eckehard V., Advances in Phase-Transfer Catalysis, Angewandte Chemie, International Edition in English, vol. 16--No. 8, Aug. 1977, pp. 493-505.
Dehmlow, Eckehard V. et al., Applications of Phase-transfer Catalysis, Part 42. The Influence of Water Traces on Some Solid-Liquid Phase-transfer Catalysis Processes, J. Chem. Research, 1988, 384-385.
Dehmlow, Eckehard V. et al., Applications of Phase-transfer Catalysis, Part 47. Relative Stabilities ans Performances of Various Phase Transfer Catalysts, J. Chem Research, 1989, 224-225.
Bram et al, "Organic Synthesis Without Solvent: Base-Catalysed Ester Interchange," Tetrahedron Letters, 29: 4567-8 (1988).
Chemical Abstract 120:5480g (1994).
Chemical Abstracts 120:54821h (1994).
Wang, et al., Synthesis of Sucrose Esters by Phase-Transfer Catalysts, Journal of Huagiao University (Natural Science), 12(4):450-454 Oct., 1991 (English translation).

Affiliated with

Also associated with

Rating

Phase transfer catalyst for use in the synthesis of polyol fatty does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase transfer catalyst for use in the synthesis of polyol fatty, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase transfer catalyst for use in the synthesis of polyol fatty will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1702304