| 摘要 |
A process for the preparation of 1-( -phenylethyl)-4-(p-dimethylaminobenzylidenamino)-1,2,4-triazolium involves dissolution of amino-1,2,4-triazole in butanol. ?-bromoethylbenzene is added to solution, mixture is boiled for 6-8 hours, cooled up to 50-60 DEGREE C, supplemented with solution of p-dimethylaminobenzaldehyde in butanol and with concentrated hydrobromic acid. The mixture prepared is heated at 50-60 DEGREE C for 3-5 hours, cooled to room temperature, residue is filtered, flushed out on filter with ether or butanol and dried on air. Amino-1,2,4-triazole,? ??bromoethylbenzene and p-dimethylaminobenzaldehyde are used in reaction in equimolar ratio of 1:1:1.
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