While for the 2-butyne-1, 4-dibromide, in the similar conditions, no good results were reached.

而在其它条件相同的情况下，制备2 -丁炔- 1,4 -二溴并未得到相应较好的结果。

youdao

While for the 2-butyne-1, 4-dibromide, in the similar conditions, no good results were reached.

而在其它条件相同的情况下，制备2 -丁炔- 1,4 -二溴并未得到相应较好的结果。

youdao