Mitsubishi Gas Chemical Company, Inc.

Emi Nakano

Akifumi Iida

Yutaka Kanbara

Noriyuki Shiomi

Aoi Yamazoe

Yuta Ohmori

The problem addressed by this invention is to achieve a useful and novel method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane. This problem was solved by providing a method for producing dicyanocyclohexane having a cyanation step in which dicyanocyclohexane is obtained by a cyanation reaction of cyanocyclohexane-1-carboxylic acid and/or a salt thereof with an ammonia source, and a method for producing bis(aminomethyl)cyclohexane using the dicyanocyclohexane thus produced.

Method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane

A method for preparing a dicyanoalkane may omit a filtration for a catalyst after a cyanation reaction can by carrying out the cyanation reaction in a state in which precipitation of a metal catalyst is suppressed. A method for preparing a dicyanoalkane may involve cyanating one or more aliphatic dicarboxylic acids and/or salt(s) thereof with an ammonia source in the presence of a predetermined compound and a catalyst, wherein, in the cyanation, the amount of the predetermined compound is maintained at a predetermined amount or more with respect to the catalyst.

Method for preparing dicyanoalkane and bis(aminomethyl) alkane

The present invention provides a production method for dicyanocyclohexane, including a step of obtaining dicyanocyclohexane by reacting cyclohexanedicarboxylic acid and/or a salt thereof, or a heated concentrate of an aqueous ammonia solution of cyclohexanedicarboxylic acid with ammonia in a solvent having a boiling point equal to or higher than a reaction temperature.

Production method for dicyanocyclohexane

In order to provide a novel phenyl imidazoline compound having an aminomethyl group, a novel phenyl tetrahydropyrimidine compound having an aminomethyl group, or the like, a compound according to the present invention or a salt thereof is represented by the following formula (1): 

Phenyl imidazoline compound having aminomethyl group or salt thereof, or phenyl tetrahydropyrimidine compound having aminomethyl group or salt thereof, and production method for such compounds or salts thereof

A method for producing 1,4-dicyanocyclohexane, having a step of obtaining 1,4-dicyanocyclohexane by subjecting a heated concentrate of an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to a cyanation reaction.

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Niigata, Japan

Emi Nakano