Preparation of xylylenediamine

Details Preparation of xylylenediamine Preparation of xylylenediamine

1984-01-09

1984-11-13

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C 8512

Patent

active

044827415

ABSTRACT:
Xylylenediamines may be prepared by reducing the corresponding phthalonitrile with hydrogen in the presence of a catalyst comprising cobalt promoted with titanium composited on a solid support with the added presence of ammonia. By utilizing this particular catalyst with ammonia and a solvent comprising a xylylenediamine, it is possible to effect the reduction at temperatures in the range of from about 80.degree. to about 125.degree. C. and at a pressure not greater than 1000 psig. By utilizing various components of the system it is possible to attain yields of the desired product in excess of 90%.

REFERENCES:
patent: 3255248 (1966-06-01), Suessenguth et al.
patent: 3284483 (1966-11-01), Erner
patent: 3728284 (1973-04-01), Reynolds
patent: 4254059 (1981-03-01), Grey et al.

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