Bromide ion → 1,1-Dimethyl-4-methylidenecyclohexane

Reaction equation

[Br-:16].[CH3:17][P+:18]([c:19]1[cH:20][cH:21][cH:22][cH:23][cH:24]1)([c:25]1[cH:26][cH:27][cH:28][cH:29][cH:30]1)[c:31]1[cH:32][cH:33][cH:34][cH:35][cH:36]1.[CH3:1][S:2]([CH3:3])=[O:4].[CH3:7][C:8]1([CH3:15])[CH2:9][CH2:10][C:11](=[O:14])[CH2:12][CH2:13]1.[H-:5].[Na+:6].[OH2:37]>>[CH2:1]=[C:11]1[CH2:10][CH2:9][C:8]([CH3:7])([CH3:15])[CH2:13][CH2:12]1