Method for preparation of herbicide intermediates

Details Method for preparation of herbicide intermediates Method for preparation of herbicide intermediates

1995-11-02

1997-07-15

Barts, Samuel

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

Organic compounds

Carboxylic acids and salts thereof

C07C31500

Patent

active

056485255

ABSTRACT:
A method for the preparation of 2-(substituted)-4-methylsulfonylbenzoic acid by reacting a 2-(substituted)-4-nitrobenzoic acid with sodium methyl sulfinate.

REFERENCES:
patent: 4704467 (1987-11-01), Wehrenberg
R.A. Rossi et al., "Photostimulated Arylation of Cyanomethyl Anion by the SRN1 Mechanism of Aromatic Substitution," J. Org. Chem., vol. 41, No. 21, pp. 3371-3373, 1976; Columbus, OH.
J.F. Bunnett, "Aromatic Substitution by the SRN1 Mechanism" Accounts of Chemical Research, vol. 11, pp. 413-420, 1978; Columbus, OH.
J.D. Loudon, "The Action of Sulphinates on 2:4-Dinitrodiphenylsulphones," Journal of the Chemical Society, pp.218-222, 1936, London.
Helvetica Chimca Acta, vol 68, pp. 846-853, Fischer et al 1985.
Helvetica Chimca Acta, vol 68, pp. 854-859, Fischer et al 1985.

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