Process for the preparation of adducts of epoxides and alcohols

U.S. Patent Number: 5342903

Abstract: A process for the preparation of adducts by reacting an alcohol with an epoxy compound in the presence of a catalyst, which comprises reacting an alcohol of formula I ##STR1## wherein A is an aliphatic, cycloaliphatic or araliphatic radical and r is a number from 1 to 10, with a mono- or diepoxide in the equivalent ratio of 1:20 to 20:1, based on the hydroxyl and epoxy groups, in the presence of a metal complex of formula II as catalyst wherein M is a metal of the main groups or subgroups of the Periodic Table of the Elements, L.sub.1 and L.sub.2 are weakly bonded, neutral, unidentale or multidentate ligands, L.sub.3 is a strongly bonded, non-replaceable neutral or anionic unidentale or multidentate ligand, X is an anion of the following formulae BF.sub.4.sup.-, PF.sub.6.sup.-, AsF.sub.6.sup.-, SbF.sub.6.sup.-, ClO.sub.4.sup.-, IO.sub.4.sup.-, NO.sub.3.sup.- or is the sulfonate radical of a perfluorinated alkanesulfonic acid, n is an integer from 1 to 6, m is 0 or an integer from 1 to 6, k is 1 or 2, x is an integer from 1 to 1000, y is 0 or an integer from 1 to 1000, and z is 0 or an integer from 1 to 6.

Inventors: Wolleb; Heinz (Marly, CH), Hafner; Andreas (Laupen, CH), Rolfe; William M. (Balsham, GB2)

Assignee: Ciba-Geigy Corporation (Ardsley, NY)

Application Number: 08/055,656

Issued: 1994-08-30

Expired: 2006-08-30

Classes: 525/407 ; 525/523; 549/516; 568/607; 568/611; 568/618; 568/619; 568/620; 568/660; 568/662; 568/664; 568/670; 568/678; 568/679; 568/680; 568/811; 568/822; 568/831; 568/866; 568/867; 568/902

Field of search: 525/523,407 549/516 568/664,679,607,611,618,619,620,660,662,670,678,680

Click the image above to view patent images at uspto.gov within a frame.

Click here for the fulltext page on uspto.gov within a frame.