Patent ID: 6022968
Filing Date: 2000-02-08
Classification: C07C,C07D

Abstract:
A process for preparing a compound of the formula ##STR24## comprising: (a) reacting, respectively, a compound of the formula ##STR25## with diacetoxylodobenzene, NaOZ and Z'OH, wherein Z and Z'are independently selected from hydrogen and (C.sub.1 -C.sub.6)alkyl, to form an intermediate of the formula ##STR26## wherein R.sup.1 and R.sup.2 are independently selected from hydrogen and (C.sub.1 -C.sub.6)alkyl; and then either:(b1) isolating said intermediate of formula V or V' and reacting it with compounds of the formulae NaOZ and Z'OH, wherein Z and Z' are defined as above; or(b2) reacting said intermediate of formula V or V' in situ with compounds of the formula NaOZ and Z'OH, wherein Z and Z' are defined as above.