| 摘要 |
A process for the preparation of an aromatically or heteroaromatically- substituted malonic acid dinitriles which comprises introducing separately, in gaseous form, into a reactor, an appropriate aromatically- or heteroaromatically- substituted acetonitrile and cyanogen chloride, the reaction being carried out in the gas phase at a temperature of from 550 to 800 DEG C. The dinitriles may be used, inter alia, in the preparation of pharmaceuticals. |
