Dimethylformamide → 1-Bromooct-3-yne

Reaction equation

[CH2:1]([CH2:2][C:3]#[C:4][CH2:5][CH2:6][CH2:7][CH3:8])[OH:9].[O:29]=[C:30]1[N:31]([Br:36])[C:32](=[O:33])[CH2:34][CH2:35]1.[O:37]=[CH:38][N:39]([CH3:40])[CH3:41].[c:10]1([P:11]([c:12]2[cH:13][cH:14][cH:15][cH:16][cH:17]2)[c:18]2[cH:19][cH:20][cH:21][cH:22][cH:23]2)[cH:24][cH:25][cH:26][cH:27][cH:28]1>>[CH2:1]([CH2:2][C:3]#[C:4][CH2:5][CH2:6][CH2:7][CH3:8])[Br:36]