Hydrochloric Acid → 2-Chloro-4,6-di-p-tolyl-1,3,5-triazine

Participants

Reaction Steps

To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HCl (13 wt % based on cyanuric chloride). After 10 minutes, 1.9 eq of toluene was added and the reaction mixture was stirred at ice bath temperature for 30 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred for 21 h. HPLC analysis indicated about 95% cyanuric chloride conversion to 2-chloro-4,6-bis(4-methylphenyl)-1,3,5-triazine and the isomer 2-chloro-4-(4-methylphenyl)-6-(2-methylphenyl)-1,3,5-triazine.

Provenance & Evidence