PRODUCTION OF 1-ETHYL-3-(3-DIMETHYLPROPYL)CARBODIIMIDE HYDROCHLORIDE

Title:

PRODUCTION OF 1-ETHYL-3-(3-DIMETHYLPROPYL)CARBODIIMIDE HYDROCHLORIDE

Document Type and Number:

Japanese Patent JPH09110818

Kind Code:

A

Abstract:

To produce 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride which is used as a water-soluble dehydration condensing agent in high yield.

1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide is treated with a hydrogen chloride gas in one or two or more of solvents selected from aromatic hydrocarbon, halogenated hydrocarbon and ether group-containing alcohole solvents by introducing hydrogen chloride gas into the carbodiimide solution to form its hydrochloride salt. Then, as a crystallization solvent, are used one or two or more selected from aliphatic and/or alicyclic hydrocarbons and ethers and esters to effect crystallization to obtain the objective hydrochloride salt. In this process, the reaction is easily carried out with simple apparatus, and can be easily scaled up.

Inventors:

KAWAOKA YOSHIAKI
TAKASHITA KATSUSHIGE
KOIZUMI TATSUYA

Application Number:

JP29355795A

Publication Date:

April 28, 1997

Filing Date:

October 16, 1995

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SANSHIN KAGAKU KOGYO KK

International Classes:

C07C267/00; (IPC1-7): C07C267/00

Previous Patent: PRODUCTION OF ACYL ISOCYANATE

Next Patent: N-(4-BROMO-2-FLUOROBENZYL) CARBAMATE AND ITS PRODUCTION