Process for preparing nitrile compound, carboxylic acid...

Details Process for preparing nitrile compound, carboxylic acid... Process for preparing nitrile compound, carboxylic acid...

2007-11-27

2007-11-27

Saeed, Kamal A. (Department: 1626)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C549S426000

Reexamination Certificate

active

10572373

ABSTRACT:
The present invention discloses a process for preparing a nitrile compound, a carboxylic acid compound or a carboxylic acid ester compound represented by the formula (2):wherein R represents a cyano group, a carboxyl group or an ester group, R1and R2each represent a group which does not participate in the reaction, which may have a substituent, and R1and R2may be combined to each other to form a ring,which comprises subjecting an acetic acid compound represented by the formula (1):wherein R, R1and R2have the same meanings as defined above,to decarboxylation in the presence of a metal catalyst.

REFERENCES:
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Lawerence I. Kruse et al., J. Med. Chem. 1990, vol. 33, No. 2, pp. 781 to 789.
Christoph Strassier et al., Helvetica Chimica Acta, vol. 80, pp. 1528 to 1554, 1997.

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