Pyran derivatives

Details Pyran derivatives Pyran derivatives

1988-01-21

1989-06-20

Hollrah, Glennon H.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

546207, 544 96, 544149, 544333, 544374, 548215, 548300, 548517, 549417, 514374, 514385, 514422, A01N 4340, C07D40506

Patent

active

048409570

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## or --CH.sub.2 N A, R.sub.4 and R.sub.5 being each lower alkyl or cycloalkyl, A being --CH.sub.2 13 , oxygen or nitrogen atom, N A forms five or six-member ring (the ring may have no substitutent 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: 4742078 (1988-05-01), Takao et al.

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