Preparation of cyclopropane-carboxylic acid derivatives and inte

Details Preparation of cyclopropane-carboxylic acid derivatives and inte Preparation of cyclopropane-carboxylic acid derivatives and inte

1980-06-27

1981-12-15

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260465R, 560 8, 560118, 560124, 568 34, 568 35, C07C12146, C07C12148, C07C 69747, C07C 69753

Patent

active

043058850

ABSTRACT:
A perfluoroalkane-sulphinic acid of the formula R.sub.F --SO.sub.2 H is reacted with a diene at -20.degree. to +20.degree. C. to form the new intermediate ##STR1## in which R.sup.3 -R.sup.8 are hydrogen or various organic radicals or double bonds, and that is reacted with a .beta.,.beta.-dimethyl-acrylic acid derivative of the formula ##STR2## in the presence of a base at a temperature between about -20.degree. and +30.degree. C. to produce a cyclopropane carboxylic acid derivative of the formula ##STR3## in which Z is alkoxycarbonyl or cyano and R.sup.1 and R.sup.2 are hydrogen or various organic radicals. The products are known intermediates for insecticides.

REFERENCES:
patent: 3281472 (1966-10-01), Heine
patent: 3445499 (1969-05-01), Martel et al.
patent: 3578717 (1971-05-01), Mitsch et al.
patent: 3853952 (1974-12-01), Kishida et al.

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