Process for the preparation of optically active alpha-arylalkano

Details Process for the preparation of optically active alpha-arylalkano Process for the preparation of optically active alpha-arylalkano

1985-02-22

1986-04-01

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

560 56, 560100, 562465, 562466, 562493, C07C 6336

Patent

active

045799687

ABSTRACT:
A process is disclosed for the preparation of optically active alpha-arylalkanoic acids, consisting in the rearrangement of optically active (alpha-haloalkyl)-aryl-ketals and in submitting to hydrolysis the thus obtained esters of alpha-arylalkanoic acids. The rearrangement reaction is carried out under neutral or alightly alkaline conditions, in an aprotic dipolar diluent and in the presence of a protic substance having a high dielectric constant.

REFERENCES:
patent: 4356188 (1982-10-01), Pacheco et al.
patent: 4501913 (1985-02-01), Giordano et al.

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