Preparation
Basic Dye C.I. 46025 ((by?Formaldehyde ?and?4-Methylbenzene-1,3-diamine?reaction, product and amino reaction hydrochloric acid and ammonium chloride heating or remove ammonia, melting with ferric chloride and oxidation) and Dimethyl sulfate?or and Methyl 4-methylbenzenesulfonate?reaction. Note: the market many similar alkylation Dye, they are through the Basic Dye C.I. 46025 or 46065 (from Benzaldehyde ?and 4-Methylbenzene-1,3-diamine?diazo, ?cyclization and condensation with ferric chloride oxidation and) alkylation. When use and inorganic acid or alkyl halide reaction, amino is alkylation, but use of Dimethyl sulfate?orMethyl 4-methylbenzenesulfonate?or Ethyl p-toluenesulfonate, then the formed real around totally heterocyclic compounds.
