Patent · US Active

Method for preparing ethers of cycloaliphatic or araliphatic diols

US11078146B2 · kind B2 · utility

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15Claims

0Family size

Assignee

BASF SE

Inventors

Melanie WEINGARTEN · Ludwigshafen am Rhein, DE
Wolfgang Siegel · Schifferstadt, DE
Ralf Pelzer · Rastenberg, DE
Florian Garlichs · Neustadt, DE

Key dates

Filing date	Dec 3, 2018
Grant date	Aug 3, 2021
Priority date	—
Expiry date	Dec 3, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a method for preparing a dialkyi or dialkenyl ether of a cycloaliphatic or araliphatic diol, which comprises (i) reacting the cycloaliphatic or araliphatic diol with metallic sodium in an aprotic organic solvent in the presence of a catalytic amount of at least one monoether-monoalcohol of formula (I) wherein Y is identical or different and selected from C2-C4-alkylene, n is an integer in the range from 1 to 10, and R1 is C1-C4-Alkyl, whereby the corresponding disodium dialcoholate is obtained, reacting the disodium dialcoholate obtained in step (i) with an alkylation alkenylation reagent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.