Bromide ion → 1-Benzyl-4-(4-cyanobutylidene)piperidine
Reaction equation
[Br-:1].[C:2](#[N:3])[CH2:4][CH2:5][CH2:6][CH2:7][P+:8]([c:9]1[cH:10][cH:11][cH:12][cH:13][cH:14]1)([c:15]1[cH:16][cH:17][cH:18][cH:19][cH:20]1)[c:21]1[cH:22][cH:23][cH:24][cH:25][cH:26]1.[CH2:33]([c:34]1[cH:35][cH:36][cH:37][cH:38][cH:39]1)[N:40]1[CH2:41][CH2:42][C:43](=[O:46])[CH2:44][CH2:45]1.[CH3:27][C:28]([CH3:29])([O-:30])[CH3:31].[K+:32].[O:47]1[CH2:48][CH2:49][CH2:50][CH2:51]1>>[C:2](#[N:3])[CH2:4][CH2:5][CH2:6][CH:7]=[C:43]1[CH2:42][CH2:41][N:40]([CH2:33][c:34]2[cH:35][cH:36][cH:37][cH:38][cH:39]2)[CH2:45][CH2:44]1
