Prepn. of 2-amino-2,2-di:alkoxy-acetonitrile derivs. - by reacting amino-di:alkoxy-carbonium salt with alkali metal cyanide

摘要

Prepn. of 2-amino-2, 2-dialkoxyacetonitrile derivs. of formula (I) is carried out by mixing a carbonium salt of formula (II) with an alkali metal cyanide MCN and then reacting the mixt. at =-4 degrees C for =2 hr. (where each R1 is independently an aliphatic or cycloaliphatic gp.; each R2 is independently an aliphatic, cycloaliphatic, araliphatic or aromatic gp. or N(R2)2 is a heterocyclic ring; M is alkali metal; X is an anion of a complex halogen- or CN-contg. acid, e.g. SbCl6, FeCl4, AlCl4, BF4, ZnCl3, Fe(CN)6 or Co(CN)6). (I) are useful as intermediates for dyes, imino orthoesters, orthocarbonate esters, guanidinium salts and pesticides.