C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
167/12, 260/477,
C07C 69/753 (2006.01) A01N 53/00 (2006.01) C07C 61/40 (2006.01) C07F 9/40 (2006.01)
Patent
CA 1136637
Abstract of the Disclosure 2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropane- Carboxylic acid 3-phenoxybenzyl esters of the formula Image which possess arthropodicidal properties. ln addition, .he new intermediate of the formula Image is produced by reacting an ?-bromo-benzyl-phosphonic acic ester of the formula Image in which R6 each independently is alkyl or phenyl, or the two radicals R6 together are alkanediyl, with a 3-formyl-2,2-dimethyl-cyclopropanecarboxylic acid enter and saponifying. Also the compounds of the formula Image which are new when R1 is not alkyl, are produced by reacting triphenylphosphine and bromine to form dibromo-triphenyl- phosphorane, and reacting the dibromo-triphenylphosphorane without isolation with an ?-hydroxy-benzyl-phosphonic acid ester of the formula Image
336501
Fuchs Rainer
Hammann Ingeborg
Hoffmann Hellmut
Homeyer Bernhard
Stendel Wilhelm
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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