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Gold-catalyzed coupling reaction of pyrazine with 1-bromo-2,4-dimethylbenzene has been reported. 1-Bromo-2,4-dimethylbenzene reacts with Mg and DMF, followed by the reaction with I2 and aq.NH3 to afford the corresponding aromatic nitrile.
B 2701 (OTTO) 4-Bromo-m-xylene, 98% Cas 583-70-0 - used as reagent in chemical research.