Method for producing N-(4-fluorophenyl)-2,3,-dichloromaleimide

Details Method for producing N-(4-fluorophenyl)-2,3,-dichloromaleimide Method for producing N-(4-fluorophenyl)-2,3,-dichloromaleimide

1975-05-07

1977-03-01

Gallagher, Richard J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71 95, C07D20744

Patent

active

040101827

ABSTRACT:
N-(4-fluorophenyl)-2,3-dichloromaleimide of uniform grain size is produced either by reacting 2,3-dichloromaleic acid, an anhydride or an ester thereof with 4-fluoroaniline in an aqueous medium or by dehydrative-cyclization of either N-(4-fluorophenyl)-2,3-dichloromaleamic acid or 4-fluoroanilinium 2,3-dichloromaleate in an aqueous medium. The N-(4-fluorophenyl)-2,3-dichloromaleimide of uniform grain size provides improved fungicidal activity and is convenient for preparing an agricultural fungicidal composition.

REFERENCES:
patent: 2962504 (1960-11-01), Walker et al.
patent: 3018292 (1962-01-01), Sauers et al.
patent: 3129225 (1964-04-01), Shapiro et al.
patent: 3148195 (1964-09-01), Ladd
patent: 3734927 (1976-05-01), Kawada et al.
patent: 3758498 (1973-09-01), Pfuller et al.

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