[CH2:1]([NH:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH3:4].C(=O)([O-])[O-].[K+].[K+].Br[CH:19]([CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[CH3:20].CN(C=O)C>O>[CH2:1]([N:5]([CH:19]([CH3:20])[CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH3:4]A mixture of N-butylaniline (7.45 parts) anhydrous potassium carbonate (7.5 parts), 2-bromoheptane (13.5 parts) and DMF (25 parts) was stirred at 130° C. for 86 hours. The reaction mixture was poured into water, saturated with salt and extracted with ethyl acetate. The organic phase was washed with water, dried (MgSO4) and evaporated to leave N-butyl-N-(1-methylhexyl)aniline (11.8 parts, approximately 60% strength). This material had acetic anhydride (10 parts) added to it prior to further use.
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