... which involves the treatment of a mixture of nitrile and thiol compounds with anhydrous hydrogen halide (X = Cl or Br) gas, 7e,9 whereas the ... Table 2. Conventional versus Microwave-Assisted Synthesis of Thioiminoether Hydrobromides 2a−l. ... 2b, p-NO 2 C 6 H 4 −, 60 a, 90, 73 b. ...