American Cyanamid Company

Albert A Cevasco

William F Rieker

George A Chiarello

Donald R Maulding

Kenneth A Kremer

Donald Roy

The present invention provides an efficient, economic and ecologically sound process for the manufacture of a compound of formula I via the reaction of a suitable acid halide and an appropriate amine in the presence of aqueous carbonate or bicarbonate or a mixture thereof and optionally in the presence of a co-solvent. ##STR1##

Process for the manufacture of N-(1-cyanoalkyl)-2-phenoxypropionamide

There is provided an improved method for the production of o-aminophenyl ketones of formula I wherein R is C.sub.3 -C.sub.6 cycloalkyl or C.sub.1 -C.sub.6 haloalkyl. ##STR1## Compounds of formula I are key intermediates in the manufacture of sulfamoyl urea herbicides.

Process for the manufacture of cycloalkyl and haloalkyl o-aminophenyl

There is provided an effective method for the preparation of o-aminophenyl cyclopropyl ketone via the dehydrohalogenation of 1-(o-aminophenyl)-4-halo-1-butanone in the presence of a base and a phase transfer catalyst.

Process for the preparation of o-aminophenyl cyclo-propyl ketone

There is provided a process for the preparation of dialkyl pyridinedicarboxylate compounds and derivatives thereof by reacting a dialkyl chloromaleate or chlorofumarate or a mixture thereof with an ammonium salt optionally in the presence of ammonia and an appropriately substituted .alpha.,.beta.-unsaturated aldehyde or ketone.

Process for the preparation of substituted and

There is provided a process for the preparation of substituted and unsubstituted-2,3-pyridinedicarboxylate compounds by reacting a dialkyl dichlorosuccinate with a dehydrohalogenating agent, an ammonia source and an appropriately substituted .alpha.,.beta.-unsaturated aldehyde or ketone.

Process for the preparation of dialkyl pyridine-2,3-dicarboxylate and

There is provided a method of manufacture of dialkyl monohalomaleate and dialkyl monohalofumarate and mixtures thereof via a dehydrohalogenation of the appropriate dialkyl dihalosuccinate precursor in the presence of an aqueous base and a phase transfer catalyst.

Process for the manufacture of halomaleic and halofumaric esters

There is provided a process for the preparation of dialkyl pyridinedicarboxylate compounds and derivatives thereof by reacting a dialkyl chloromaleate or chlorofumarate or a mixture thereof with an ammonium salt optionally in the presence of ammonia and an appropiately substituted .alpha.,.beta.-unsaturated aldehyde or ketone.

The present invention relates to an improved method for the preparation of dialkyl dichlorosuccinates by chlorination of a dialkyl maleate in the presence of a catalytic amount of a C.sub.1 -C.sub.4 alkyl alcohol in the absence of a solvent which are useful intermediates in the preparation of anilinofumarates. Anilinofumarates are, in turn, used in the preparation of 2-(2-imidazolin-2-yl)quinoline-3-carboxylic acid herbicidal agents.

Method for the preparation of dialkyl dichlorosuccinates

There is provided a novel process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof.

Process for the manufacture of anilinofumarate via chloromaleate or

The present invention relates to an improved method for the preparation of anilinofumarates useful as intermediates in the preparation of 2-(2-imidazolin-2-yl) quinoline-3-carboxylic acid herbicidal agents.

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Somerset, NJ, United States of America

Albert A Cevasco