Halogen atom could activate the triple bond and as the directinggroup, the triple bond occurs the electrophilic addition reaction.
卤原子作为保护基,代替末端炔发生碳-氢官能团化反应。
2
As you can imagine, his colleagues and the professor directing the group were nervous about that.
如您想象的那样,他的同事和指导团队的教授都对此感到紧张。
3
Article 97 "Ringleader" as mentioned in this Law refers to any criminal who has the role of organizing, planning or directing a criminal group or a crowd assembled to commit a crime.