Continuous process for the cyanoalkylation of compounds having one or more NH functions
AssigneeBASF Akiengesellschaft
InventorsThomas Greindl, Gerold Braun, Friedrich Wirsing, Georg Krug
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Abstract
The invention relates to a continuous process, carried out in two steps, for the cyanoalkylation of compounds having one or more NH functions by reaction thereof with carbonyl compounds and hydrocyanic acid, in which the first step is carried out without pressure at a temperature which is below the boiling point of the reaction mixture.
Claims12
A process for the cyanoalkylation of ammonia or organic compounds having one or more NH functions by reaction of said compounds with one mole of a carbonyl compound per NH function to be reacted and with one mole of hydrocyanic acid per NH function to be reacted, in a suitable solvent, which comprises carrying out the reaction in two sections, where the reaction in the first section is carried out to a degree of conversion of at least 60%, based on hydrocyanic acid, at a temperature T1 which is below the boiling point of the reaction mixture, and the reaction in the second section is carried out to a degree of conversion of at least 90%, based on hydrocyanic acid, at a temperature T2 which is below 150° C.
Dependencies are inferred from the claim text.