Substituted-acetic acid ester

Details Substituted-acetic acid ester Substituted-acetic acid ester

1978-02-28

1982-01-05

Trousof, Natalie

Drug, bio-affecting and body treating compositions

Nonspecific immunoeffector, per se ; or nonspecific...

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

2603405R, 260465D, 424304, 424308, 542427, 560 9, 560 18, 560 55, 560 64, 560 81, A61K 31235, A61K 3160, C07C 69614, C07D32302

Patent

active

043094392

ABSTRACT:
A novel substituted-arylacetic acid ester of the formula, ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or a halogen atom, a C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.1 -C.sub.4 alkoxy, cyano, nitro, methylthio, C.sub.1 -C.sub.4 alkanoyl, C.sub.1 -C.sub.4 alkanoyloxy, or C.sub.1 -C.sub.4 alkoxycarbonyl group, or R.sub.1 and R.sub.2, taken together, may form methylenedioxy, a C.sub.3 -C.sub.5 alkylene or butadienylene (--CH.dbd.CH--CH.dbd.CH--) ring; R.sub.3 is a C.sub.2 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, propargyl, C.sub.3 -C.sub.6 cycloalkyl or cyclopropylmethyl group; R.sub.4 is hydrogen or a halogen atom, methyl or ethyl group; R.sub.5 is allyl, propargyl, 3-butenyl, 3-butynyl, phenyl or benzyl group; and A is oxygen or sulfur atom or --CH.dbd.CH-- group, which possesses various useful insecticidal and acaricidal activities and can be prepared by reacting a substituted-arylacetic acid of the formula: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and A are each as defined above, or a reactive derivative thereof with an alcohol, or halide or sulfonate thereof of the formula, ##STR3## wherein R.sub.4 and R.sub.5 are each as defined above and X is hydroxy group, a halogen atom, alkylsulfonyloxy or arylsulfonyloxy group.

REFERENCES:
patent: 3968124 (1976-07-01), Mizutani et al.
patent: 4003945 (1977-01-01), Kitamura et al.
patent: 4016179 (1977-04-01), Fujimoto et al.
patent: 4016179 (1977-04-01), Fujimoto et al.
patent: 4091111 (1978-05-01), Ohno et al.

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