Process for the production of 1-amino-1-methyl-3(4)-cyanocyclohe

Details Process for the production of 1-amino-1-methyl-3(4)-cyanocyclohe Process for the production of 1-amino-1-methyl-3(4)-cyanocyclohe

1995-01-13

1995-09-12

Brust, Joseph Paul

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

Organic compounds

Nitriles

558335, C07C25330, C07C25310, C07C25546

Patent

active

054498112

ABSTRACT:
A new process for the production of 1-amino-1-methyl-3(4)-cyanocyclohexane (AMCC), an intermediate for the manufacture of 1-isocyanato-1-methyl-3(4)-isocyanatomethylcyclohexane. In this process, 4(5)-cyano-1-methylcyclohexene is reacted with excess hydrogen cyanide in the presence of aqueous sulfuric acid to form 1-formamido-1-methyl-3(4)-cyanocyclohexane which is then selectively hydrolyzed in an acidic medium to form AMCC.

REFERENCES:
patent: 4613685 (1986-09-01), Klein et al.
patent: 4835239 (1989-05-01), Klein et al.
Weygand/Hilgetag, "Preparative Organic Chemistry", (1972), p. 351; John Wiley & Sons-N.Y., London, Sydney.

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