Preparation of 5-cyanovalerates

Details Preparation of 5-cyanovalerates Preparation of 5-cyanovalerates

1995-04-10

1997-04-01

Richter, Johann

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

Organic compounds

Nitriles

C07C25503

Patent

active

056167733

ABSTRACT:
Preparation of 5-cyanovalerates (I) by the carbonylation of a 1-cyanobutene with carbon monoxide and an alkanol (II) corresponding to the ester radical at an elevated temperature and under superatmospheric pressure in the presence of a cobalt catalyst as well as in the presence of an activating solvent, in which the activating solvent used is an effective amount of a urea of the formula IIIc

REFERENCES:
patent: 4950778 (1990-08-01), Burke et al.
patent: 5434290 (1995-07-01), Stahl et al.

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