Reductive amination of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanones. Synthesis of 1-[3-(2-alkylbenzofuranyl)-2-phenylethylamines

1-[3-(2-Alkylbenzofuranyl)]-2-phenylethylamines were prepared by reduction of 1-[3-(2-alkylbenzofuranyl)]-2-phenylethanone azines with amalgamated alu minum. Two isomeric azines were separated from products of reaction of 1-[3 -(2-alkylbenzofuranyl)]-2-phenylethanones with hydrazine hydrate in ethanol solution. On the other hand, instead of desired amine, aziridine derivativ e was obtained by reduction of the mixture of (Z)- and (E)-1-[3-(2-butylben zofuranyl)-2-(4-methoxyphenyl)]ethanone oximes with lithium aluminum hydrid e. The reduction of 1-[3-(2-butylbenzofuranyl)]-2-phenylethanone hydrazone with aluminium lead up to the corresponding imine.