Preparation of hexamethyleneimine

Details Preparation of hexamethyleneimine Preparation of hexamethyleneimine

1975-07-24

1981-09-22

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D29502

Patent

active

042909465

ABSTRACT:
A process for preparing hexamethyleneimine from hexamethylenediamine, which comprises continuously reacting hexamethylenediamine at about 70 to 180.degree. C. in an inert solvent using a nickel catalyst and/or cobalt catalyst while maintaining the concentrations of hexamethyleneimine and hexamethylenediamine in the reaction mixture at 10% by weight or less and 25% by weight or less, respectively, by removing the hexamethyleneimine from the reaction system as soon as the hexamethyleneimine is formed.

REFERENCES:
patent: 2232059 (1941-02-01), Farlow
patent: 3652545 (1972-03-01), Horlenko
patent: 3830800 (1974-08-01), Brake
patent: 4229346 (1980-10-01), Toussaint
Yasumura, Chem. Abs. 59, 2813c (1963).

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