Manufacture of 5-cyanovaleric acid and its esters using cyclic c

Details Manufacture of 5-cyanovaleric acid and its esters using cyclic c Manufacture of 5-cyanovaleric acid and its esters using cyclic c

1989-11-08

1990-08-21

Brust, Joseph Paul

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

Organic compounds

Nitriles

558441, C07C25330

Patent

active

049507788

ABSTRACT:
Manufacture of 5-cyanovaleric acid by carbonylation of pentenenitriles from a mixture consisting essentially of pentenenitrile, CO and at least one compound of the formula ROH, where R is hydrogen or alkyl of 1 to 6 carbon atoms, and a cyclic urea and/or a cyclic amide, where the combined weight of the cosolvents is between about 70% and 99% of the total weight of the reaction mixture.

REFERENCES:
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patent: 3246029 (1966-04-01), Kato et al.
patent: 4060543 (1977-11-01), Weitz et al.
patent: 4508660 (1985-04-01), Sieja
Falbe, New Syntheses with Carbon Monoxide, (1980), pp. 252-253, 302-303, Springer-Verlag, Berlin, Heidelberg, N.Y.
Fell, et al., [Translation of] Chem. Ztg., III, (1987), pp. 317-323.
Imyanitov, et al., [Translation of] Khimicheskaya Promyshlennost, 19, (1987), pp. 4-7.

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