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A 250-mL Schlenk flask fitted with a stir bar (oven-dried at 110 ¡ãC for 48 h and flame-dried under vacuum immediately prior to use) and covered with a rubber septum was charged with CuBr (981 mg, 6.84 mmol) under argon in an air bag. Çë½Ì£¬×öÔ×Ó×ªÒÆ×ÔÓÉ»ù¾ÛºÏÎﷴӦʱ£¬Ôõô¼ÓÈëCuBr£¬under argon in an air bag£¬ÊÇʲôÒâ˼£¿Õâ¸öÆø´üÊÇʲôÑù×ӵģ¿¶ÔÓÚCuBrµÄ´¿¶ÈÒªÇó¸ß²»¸ß£¿ÁíÍâË®·ÖµÄÓ°Ïì´óÂ𣿠лл |
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