تفاعل #2200616

معادلة التفاعل

5-bromo-2-(4-methyl-imidazol-1-yl)-benzonitrile

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compound

5-Bromo-2-(5-dimethylaminomethyl-4-methyl-imidazol-1-yl)-benzonitrile

المذيبات

DMF

ظروف التفاعل

المعالجة

1. 1
   أخرىThe solvent was evaporated
2. 2
   أخرىthe oily residue was partitioned between saturated aqueous sodium bicarbonate solution and Ethyl acetate
3. 3
   تجفيفThe organic phase was dried over sodium sulfate
4. 4
   تركيزconcentrated
5. 5
   أخرىpurified by chromatography (SiO2, gradient CH2Cl2 to 35% (CH2Cl2/MeOH=9/1)

الإجراء التجريبي

A solution of 5-bromo-2-(4-methyl-imidazol-1-yl)-benzonitrile (11.0 g, 42.0 mmol) and N,N-dimethylmethyleneiminium chloride (5.0 g, 53.4 mmol) in DMF (75 mL) was stirred at 90° C. for 16 h. The solvent was evaporated, and the oily residue was partitioned between saturated aqueous sodium bicarbonate solution and Ethyl acetate. The organic phase was dried over sodium sulfate, concentrated and purified by chromatography (SiO2, gradient CH2Cl2 to 35% (CH2Cl2/MeOH=9/1) to afford the tide compound as an oil that solidifies on standing (10.62 g, 79%). MS: m/e=319.2/321.3 [M+H]+.

المصدر