抄録
The decomposition of bis [(N-4-antipyrinyl-N-methyl) amino] methane (II) with paraformaldehyde and potassium cyanide was effected by heating in glacial acetic acid, and afforded (N-4-antipyrinyl-N-methyl) aminoacetonitrile (VI) and 4-methylaminoantipyrine (I). The condensation of 4-methylaminoantipyrine (I) with paraformaldehyde and potassium cyanide on being warmed in glacial acetic acid also furnished (VI). The respective action of an excess of paraformaldehyde on (I) and (III) in dil. hydrochloric acid gave (II). However, in conc. hydrochloric acid, the respective action of an excess of paraformaldehyde on (I), (II), (III), and (VII) afforded (IV).
