Process for the production of...

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C - Chemistry, Metallurgy

07

C

C07C 255/46 (2006.01) C07C 253/30 (2006.01)

Patent

CA 2140730

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.

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