Claims
- 1. An improved process for preparing alkyl glycosides having from about 1 to about 30 carbon atoms in the alkyl chain, comprising the steps of:
- (a) reacting a C.sub.1 to C.sub.30 monohydric alcohol with a source of reducing monosaccharide moiety, selected from the group consisting of reducing monosaccharides, corn syrup, molasses and the glycosides of C.sub.1 to C.sub.4 alcohols, in the presence of an acid catalyst; and
- (b) neutralizing the catalyst with a base to a pH of from about 6.6 to about 7;
- the improvement comprising neutralizing the catalyst with an organic base of the formula (RO).sub.n M, wherein R is a substituted or unsubstituted alkyl or acyl of from 1 to about 30 carbon atoms, M is selected from the group consisting of alkali metal, alkaline earth metal and aluminum and n is 1 when M is alkali metal, 2 when M is alkaline earth metal, and 3 when M is aluminum.
- 2. The process of claim 1 wherein the R in the organic base is an unsubstituted alkyl or acyl radical of from 1 to about 4 carbon atoms.
- 3. The process of claim 2 wherein the monohydric alcohol contains from 8 to about 30 carbon atoms.
- 4. The process of claim 3 wherein the source of reducing monosaccharide moiety is a monosaccharide.
- 5. The process of claim 4 wherein the acid catalyst is selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, phosphorous acid, p-toluene sulfonic acid, boron trifluoride, sulfonic acid ion exchange resins, and unneutralized anionic surfactants.
- 6. The process of claims 1, 2, 3 through 5 wherein R in the organic base is an unsubstituted alkyl radical of from 1 to about 4 carbon atoms.
- 7. The process of claim 6 wherein the acid catalyst is selected from the group consisting of:
- (a) Alkyl sulfates of the formula
- RO(C.sub.2 H.sub.4 O).sub.n SO.sub.3 H
- wherein R is an alkyl group of from about 8 to about 22 carbon atoms, and n is from 0 to about 6,
- (b) Alkylbenzene sulfonates of the formula ##STR2## wherein R is alkyl of from about 8 to about 15 carbon atoms, and (c) Alkyl sulfonates of the formula
- RSO.sub.3 H
- wherein R is alkyl of from about 8 to about 22 carbon atoms.
- 8. The process of claim 7 wherein the acid catalyst is an alkylbenzene sulfonic acid having from 12 to 14 carbon atoms in the alkyl chain and the neutralizing base is sodium ethoxide.
- 9. The process of claims 1, 2, 3 through 5 wherein R in the neutralizing base is an acyl radical of from 1 to about 4 carbon atoms.
- 10. The process of claim 9 wherein the acid catalyst is selected from the group consisting of:
- (a) Alkyl sulfates of the formula
- RO(C.sub.2 H.sub.4 O).sub.n SO.sub.3 H
- wherein R is an alkyl group of from about 8 to about 22 carbon atoms, and n is from 0 to about 6,
- (b) Alkylbenzene sulfonates of the formula ##STR3## wherein R is alkyl of from about 8 to about 15 carbon atoms, and
- (c) Alkyl sulfonates of the formula
- RSO.sub.3 H
- wherein R is alkyl of from about 8 to about 22 carbon atoms.
- 11. The process of claim 10 wherein the neutralizing base is sodium acetate.
- 12. The process of claim 4 wherein the source of reducing monosaccharide is glucose.
- 13. The process of claim 4 wherein the source of reducing monosaccharide is corn syrup.
CROSS-REFERENCE TO RELATED APPLICATON
This is a Continuation-in-Part of U.S. Ser. No. 509,895, Letton, filed June 30, 1983, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3839318 |
Mansfield |
Oct 1974 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
0132043 |
Jan 1985 |
EPX |
Non-Patent Literature Citations (1)
Entry |
The Dispensatory, 24th Edition, Na Ethoxide, pp. 1588-1589. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
509895 |
Jun 1983 |
|