Method of preparing 1,3,3-trimethyl-5-oxo-cyclohexane carbonitri

Details Method of preparing 1,3,3-trimethyl-5-oxo-cyclohexane carbonitri Method of preparing 1,3,3-trimethyl-5-oxo-cyclohexane carbonitri

1990-12-05

1992-02-25

Brust, Joseph Paul

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

Organic compounds

Nitriles

C07C25310

Patent

active

050915541

ABSTRACT:
Hydrogen cyanide is added to isophorone for the preparation of 1,3,3-trimethyl-5-oxo-carbonitrile in the presence of lithium hydroxide in an amount in a range of 0.005 to 5 mole % at 100.degree. to 160.degree. C. The yield is higher and the space-time yield is better than was possible when using other alkaline acting alkali compounds.

REFERENCES:
patent: 4299775 (1981-11-01), Dubreux
patent: 5011968 (1991-04-01), Thunberg et al.

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