Monsanto Company

Karl E Koenig

Dennis Patrick Riley

Raymond C Grabiak

Donald L Fields, Jr

Robert B Weisenfeld

Gary A Lanser

Paul A Morrison

A process for the production of N-phosphonomethylglycine comprising contacting N-phosphonomethyliminodiacetic acid with a peroxide in the presence of a catalyst selected from the group consisting of the salts and salt complexes of cobalt and vanadium, and an effective amount of a quinone or hydroquinone.

Process for producing N-phosphonomethylglycine

A process for the production of N-phosphonomethylglycine comprising contacting N-phosphonomethyliminodiacetic acid with a peroxide in the presence of a catalyst selected from the group consisting of the salts and salt complexes of cobalt and vancadium, and an effective amount of dipyridyl compound.

Process for producing N-phosphonomethylgylcine

An improved process is provided for producing iminodiacetonitrile by contacting ammonia, formaldehyde and hydrogen cyanide, or hexamethylenetetramine, formaldehyde and hydrogen cyanide in a reaction medium, the improvement which comprises the further steps of thereafter adjusting the pH of the reaction medium to a pH between about 5.5 and about pH 10 and heating the reaction medium to an elevated temperature for a sufficient time to convert by-products in the reaction medium to iminodiacetonitrile.

Process for the preparation of iminodiacetonitrile and iminodiacetic acid

Preparation of novel prochiral olefinic compounds which can be asymmetrically hydrogenated to enantiomers, which are converted to ephedrine and pseudoephedrine by described procedures.

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Ballwin, MO, United States of America

Karl E Koenig