Over all yield from starting to bromide is 80%.
由原料到溴代物的合成总收率达80％。
Just as he was about to leap over, his master caught him by the tail and tried to pull him back, but the stubborn Ass would not yield and pulled with all his might.
正当驴子要跳下悬崖的时候，它的主人一把抓住它的尾巴，竭力想把它拉回来。然而，这头倔驴丝毫不领情，使出了全身的力量想要挣脱。
All yield over 50%, product purity over 98%.
产品纯度达98%以上，反应总收率50%以上。
All yield over 50%, product purity over 98%.
产品纯度达98%以上，反应总收率50%以上。
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