Process for alkylation of aromatic diamines

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

1990-10-23

1992-04-07

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564305, 502155, C07C20960, C07C20900

Patent

active

051030594

ABSTRACT:
Production of alkyl substituted aromatic diamines by reacting triethylaluminum 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: 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", Wilhiho Foerst, Editor, Academic Press (1963).

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