EP0155710A2
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EP
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Process for the preparation of derivatives of polyethoxypropanesulfonates
Assignee: Mobil Oil AS
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Filing: 1982-04-28
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Granted: —
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Expires: 2002-04-28
Abstract
Abstract Alkoxypolyethoxypropane sulfonates of the general formula… RY(C2H4O)xCH2CH2CH2SO3Na… in which R is alkyl or alkaryl, Y is 0 or S and x is 0 to 20 are prepared by a two-stage procedure in which the polyethoxylated alcohol or thiol RY(C2H4O)xH is reacted with allyl halide or tosylate in the presence of strong aqueous NaOH and some final product as phase transfer agent and the resulting allyl ether intermediate is sulfonated in situ with bisulfite.
Inventors
- 👤 Kirk Douglas Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 23:18
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584; C07; C07C; C07C17/00; C07C17/093; C07C17/16; C07C309/00; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A process for preparing a compound of the general formula in which R is an alkyl or alkaryl group, Y is 0 or S and x has a value from 0 to 20, which comprises reacting together an alcohol RY(C 2 H 4 O) x H, sodium hydroxide and allyl halide or tosylate to form the corresponding allyl ether RY(C 2 H 4 O) x CH 2 CH=CH 2 and reacting the allyl ether with sodium bisulfite, the first stage of the reaction being carried out in strong aqueous sodium hydroxide in the presence of sufficient final product to function as a phase transfer agent, and the second stage being carried out without isolation of the intermediate allyl ether.
Claim 2
Dependent Claim
119 words
A process for preparing a compound of the general formula in which R is an alkyl or alkaryl group, Y is 0 or S and x has a value from 0 to 20, which comprises reacting together an alcohol RY(C 2 H 4 O) x H, sodium hydroxide and allyl halide or tosylate to form the corresponding allyl ether RY(C 2 H 4 O) x CH 2 CH=CH 2 and reacting the allyl ether with sodium bisulfite, the first stage of the reaction being carried out in strong aqueous sodium hydroxide in the presence of sufficient final product to function as a phase transfer agent, and the second stage being carried out without isolation of the intermediate allyl ether.
Claim 3
Dependent Claim
43 words
A process according to claim 1, in which R is an alkyl group having from 1 to 16 carbon atoms or an alkaryl group having from 7 to 16 carbon atoms and x is zero or has a value from 2 to 6.
Claim 4
Dependent Claim
41 words
A process according to claim 1 or claim 2, in which the first stage is carried out in the presence of from 0.1 to 1 mole of the final product per mole of alcohol RY(C 2 H 4 0) x H.
References Cited (Backward Citations)
No citation records indexed.
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