Process of making D-panthenyl triacetate

Details Process of making D-panthenyl triacetate Process of making D-panthenyl triacetate

2006-01-03

2006-01-03

Trinh, Ba K. (Department: 1625)

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

Organic compounds

Carboxylic acid esters

C560S196000, C560S198000, C560S204000

Reexamination Certificate

active

06982346

ABSTRACT:
A process of making D-panthenyl triacetate which includes reacting D-panthenol with acetic anhydride in the presence of the catalyst polymer bound dimethylaminopyridine to form an exothermic mixture. The so-produced acetic acid, and the catalyst are removed from the exothermic mixture which is then neutralized with sodium hydroxide. Sodium acetate in the form of a solid is removed by filtration. The D-panthenyl triacetate is useful in cosmetic compositions.

REFERENCES:
patent: 5415861 (1995-05-01), Duffy et al.
patent: 6503515 (2003-01-01), Sterphone et al.
A.R. Prosser and A. J. Sheppard, “Gas-Liquid Chromatographic Determination of Panthothenates and Panthenol”, Journal of Pharmaceutical Sciences, vol. 58, No. 6, pp. 718-721 (1969).

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