Aniline combines directly with alkyl iodides to form secondary and tertiary amines; boiled with carbon disulphide it gives sulphocarbanilide (diphenyl thio-urea), CS(NHC 6 H 5) 2, which may be decomposed into phenyl mustard-oil, C 6 H 5 CNS, and triphenyl guanidine, C 6 H 5 N: C(NHC6H5)2.
On the other hand, at about 240° C., the amine and ester react to form 13-anilidocrotonic ester, CH 3 C(NHC 6 H 5): CH COOC2H5r which yields y-oxy-a-methylquinoline (M.
C 6 H,N 2 NHC 6 H 6+2HC1+H NO 2 =2C6H5N2C1+2H20.
Diazoaminobenzene, C 6 H 5 N 2 NHC 6 H 61 crystallizes in golden yellow laminae, which melt at 96°C. and explode at a slightly higher temperature.
Diazoamino benzene, C 6 H 5 N: N NHC 6 H 5, was first obtained by P. Griess (Ann., 1862, 121, p. 258).