Process for alkylation of aromatic diamines

Details Process for alkylation of aromatic diamines Process for alkylation of aromatic diamines

1992-01-13

1993-04-20

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502167, B01S 3114

Patent

active

052043070

ABSTRACT:
Production of alkyl substituted aromatic diamines by reacting triethlyaluminum with an aromatic diamine and a chloride ion source in the presence of an olefin is disclosed. The alkyl substituted aromatic diamines are useful as chain extenders in polyurethane processes.

REFERENCES:
patent: 2814646 (1957-11-01), Kolka et al.
patent: 3275690 (1966-09-01), Stroh et al.
patent: 4128582 (1978-12-01), Governale et al.
Stroh et al., Newer Methods of Preparative Organic Chemistry, vol. 2, "Alkylation of Aromatic Amines", Academic Press (1963), pp. 227-252.

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