Process for the preparation of 3-arylbenzofuranones

Details Process for the preparation of 3-arylbenzofuranones Process for the preparation of 3-arylbenzofuranones

1994-09-12

1997-03-04

Tucker, Philip

Compositions

Light transmission modifying compositions

Ultraviolet

544238, 544239, 544240, 544242, 544283, 544285, 544286, 544287, 544288, 544333, 544347, 546138, 546139, 546141, 546142, 546147, 546148, 546152, 546153, 546155, 546156, 546157, 548525, 549 13, 549 23, 549 26, 549 27, 549 43, 549 44, 549 45, 549 46, 549 48, 549 49, 549 51, 549 52, 549 55, 549 58, 549 60, 549307, F21V 904, C07D30512

Patent

active

056076240

ABSTRACT:
A process for the preparation of compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, which comprises reacting a compound of formula III ##STR2## wherein the general symbols are as defined in claim 1, with a compound of formula IV

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