反应详情

2,6-dichloro-4′,5′-dimethoxy-6′-(2-fluorobenzyloxy)-2′-methylbenzophenone (coded BB-2); 6′-benzyloxy-4′,5′-dimethoxy-2,6-dimethyl-2′-methylbenzophenone (coded BB-3); and [3-bromo-2′,6-dimethyl-2,4′,5′,6′-tetramethoxybenzophenone] 5-bromo-2′,6-dimethyl-2,4,5′,6′-tetramethoxybenzophenone (coded BB-4), most preferred BB-4.