Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfate esters
Patent
1989-12-18
1991-08-06
Chan, Nicky
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfate esters
C07C14110
Patent
active
050379925
ABSTRACT:
The present invention is directed to a process for sulfating unsaturated alcohols using inexpensive reagents and mild reaction conditions. The process comprises reacting an unsaturated alcohol of the formula R--OH, wherein R is a C.sub.8 -C.sub.22 alkenyl group, with an ether sulfate of the formula R.sup.1 (OCH.sub.2 CH.sub.2).sub.n OSO.sub.3 M, wherein R.sup.1 is a C.sub.1 -C.sub.18 hydrocarbyl group, n is an integer from 1 to 10, and M is an alkali metal, to form an unsaturated sulfate; said reaction being carried out in the presence of a catlaytically effective amount of an acid catalyst. The mole ratio of unsaturated alcohol reactant to ether sulfate ranges from about 0.5:1 to about 2:1. In this process the sulfation occurs primarily at the hydroxyl group of the unsaturated alcohol, with minimal sulfation at the olefinic moiety of said alcohol.
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Matthews Randall S.
Ward James F.
Chan Nicky
Dabek R. A.
The Procter & Gamble & Company
Witte R. C.
Yetter J. J.
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