2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropanecarboxylic a

Details 2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropanecarboxylic a 2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropanecarboxylic a

1979-09-10

1981-07-21

Torrence, Dolph H.

Drug, bio-affecting and body treating compositions

Nonspecific immunoeffector, per se ; or nonspecific...

Bacterium or component thereof or substance produced by said...

260465D, 424304, 424308, 542429, 560 8, 560 18, 560 65, A01N 4330, C07C 69743, C07C12175

Patent

active

042799201

ABSTRACT:
2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropanecarboxylic acid 3-phenoxybenzyl ester of the formula ##STR1## which possess arthropodicidal properties. In addition, the new intermediate of the formula ##STR2## is produced by reacting an .alpha.-bromo-benzyl-phosphonic acid ester of the formula ##STR3## in which R.sup.6 each independently is alkyl or phenyl, or the two radicals R.sup.6 together are alkanediyl, with a 3-formyl-2,2-dimethyl-cyclopropanecarboxylic acid ester and saponifying. Also the compounds of the formula ##STR4## which are new when R.sup.1 is not alkyl, are produced by reacting triphenylphosphine and bromine to form dibromo-triphenylphosphorane, and reacting the dibromo-triphenylphosphorane without isolation with an .alpha.-hydroxy-benzyl-phosphonic acid ester of the formula ##STR5##

REFERENCES:
patent: 3973036 (1976-08-01), Hirano et al.
patent: 4024163 (1977-05-01), Elliott et al.
patent: 4157447 (1979-06-01), Engel
patent: 4199596 (1980-04-01), Fuchs et al.

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