Back to results
US 2009/0275784 A1Published application
Process for producing polyglyceryl ether derivative
AssigneeKao Corporation
InventorAkira Saito
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for producing polyglyceryl ether derivatives by reacting an alcohol with glycidol in the presence of a simple metal salt of rare earth element as a catalyst which is capable of realizing a highly-selective addition reaction of the alcohol and glycidol, and enhancing a conversion rate of the alcohol.
Claims11
1:
- A process for producing a polyglyceryl ether derivative, comprising reacting an alcohol with glycidol in the presence of a simple metal salt of a rare earth element as a catalyst.
2:
- The process according to claim 1, wherein the alcohol is a compound represented by the general formula (1):
- R1—(OA)n-OH (1)
- wherein R1 is a hydrocarbon group having 1 to 36 carbon atoms;
- A is an alkanediyl group having 2 to 4 carbon atoms;
- and n is a number of from 0 to 100 on the average.
2 more elements
3:
- The process according to claim 1, wherein the alcohol is a polyol having 2 to 6 hydroxyl groups.
4:
- The process according to claim 1, wherein the rare earth element is lanthanum and/or samarium.
5:
- The process according to claim 1, wherein the simple metal salt of the rare earth element is in the form of an inorganic acid salt and/or an organic acid salt.
6:
- The process according to claim 5, wherein the inorganic acid salt of the rare earth element is a perchloric acid salt thereof.
7:
- The process according to claim 5, wherein the organic acid salt of the rare earth element is a sulfonic acid salt thereof.
8:
- The process according to claim 1, wherein the simple metal salt of the rare earth element is used in an amount of from 0.001 to 0.2 mol per 1 mol of the alcohol.
9:
- A polyglyceryl ether derivative produced by reacting an alcohol with glycidol in the presence of a simple metal salt of a rare earth element as a catalyst.
10:
- The process according to claim 2, wherein the rare earth element is lanthanum and/or samarium.
11:
- The process according to claim 3, wherein the rare earth element is lanthanum and/or samarium.