Process for preparing heterocycles

Details Process for preparing heterocycles Process for preparing heterocycles

C - Chemistry, Metallurgy

07

D

C07D 265/08 (2006.01)

Patent

CA 2679753

The invention relates to a process for preparing heterocycles by catalytically reacting an aromatic dinitrile with an amino alcohol, wherein the amino alcohol and the catalyst are initially charged and the aromatic dinitrile is metered in at room temperature, an additional solvent being dispensed with during the reaction, and then, after the end of the reaction, the excess amino alcohol is removed completely or virtually completely and is replaced by a nonpolar solvent, and a crude product is thus obtained with an amino alcohol content of not more than 20% by weight, based on the amount of heterocycles.

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