Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1986-10-20
1988-05-03
Hollrah, Glennon H.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
549417, A01N 4316, C07D30932
Patent
active
047420782
ABSTRACT:
A pyran derivative represented by a general formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, cycloalkyl or phenyl, R.sub.2 is alkyl having 8 to 20 carbon atoms, R.sub.3 is hydrogen, halogen, ##STR2## R.sub.4 and R.sub.5 being each lower alkyl or cycloalkyl, A being --CH.sub.2 --, oxygen or nitrogen atom, ##STR3## forms five or six-member ring (the ring may have no substituent or have at least one substituent selected from lower alkyl, lower alkoxy and halogen atom), or an acid salt thereof, are useful as agricultural miticides.
REFERENCES:
patent: 3751434 (1973-08-01), Lefebvre
patent: 4246178 (1981-01-01), Yamamoto et al.
patent: 4289704 (1981-09-01), Brennan et al.
Otsuka VI: Derwent 40452C/23, JP 55-55176 (22.04.80).
Osaki Norio
Takao Hisashi
Yasudomi Norio
Dinner D. L.
Hollrah Glennon H.
Otsuka Kagaku Kabushiki Kaisha
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