A. Kumar et al., FACILE 1,2-ARYL MIGRATION OF 2-HALOMETHYL-2-(4'-HYDROXYPHENYL) KETALS- A NOVEL SINGLE-STEP SYNTHESIS OF 4-HYDROXYPHENYLACETIC ACID AND ITSDERIVATIVES, Synthetic communications, 27(7), 1997, pp. 1133-1141
1,2-Aryl migration of 1-halomethyl-2-(4-hydroxyphenyl) ketals, obtaine
d from 2-bromoethyl 4-hydroxyacetophenone, under mild basic conditions
have been shown to give 4-hydroxyphenylacetic acidor its derivtives w
hich are key intermediates in the preparation of Atenolol, a well know
n cardiac beta-blocker.