Compounds Derived from Substituted Phenylacetic Acids

2 Compounds Derived from Substituted Phenylacetic Acids 

This ketone (XIII) cannot be prepared by condensation of o-hydroxyphe-nylacetonitrile with resorcinol (Hoesch reaction) [5438]. 

Preparation by demethylation of 2,4-dihydroxy -methoxydesoxybenzoin with pyridinium bromide, kept at the melting stage for 1 min (quantitative yield) [5442], 

Preparation by catalytic hydrogenation of 2,4-dihydroxy-4 -(benzyloxy)desoxy-benzoin [5443]. 

Also obtained by treatment of ethyl 2,4-dimethoxybenzoyl-4-methoxyphenylac-etate with boiling pyridinium chloride for 20 min (ca. 220°) (49%) [5212]. 

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Compounds Derived from Substituted Phenylacetic Acids [5958] p. 1449... 

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