C([Li])CCC.[CH3:6][N:7]([CH2:9][C-:10]1[CH:14]=[CH:13][CH:12]=[CH:11]1)[CH3:8].[CH-:15]1[CH:19]=[CH:18][CH:17]=[CH:16]1.[Fe+2:20].I[CH2:22][N:23]([CH3:25])[CH3:24]>C(OCC)C>[CH3:6][N:7]([CH2:9][C-:10]1[CH:14]=[CH:13][CH:12]=[C:11]1[CH2:22][N:23]([CH3:25])[CH3:24])[CH3:8].[CH-:15]1[CH:19]=[CH:18][CH:17]=[CH:16]1.[Fe+2:20]n-Butyllithium (Aldrich, 2.5 molar in hexane, 24 ml, 54 mmol) is added to a solution of (dimethylaminomethyl)ferrocene (Aldrich, 13.13 g, 10.69 ml, 48.97 mmol) in diethyl ether (80 ml) under nitrogen at a temperature of 25° C. and the reaction mixture stirred for 4 hours. The resulting red solution is then cooled to approximately −70° C. in a dry ice/acetone bath and Eschenmosers salt (ICH2NMe2)(Aldrich, 10 g, 54 mmol) is added. The reaction is allowed to warm to room temperature and stirred overnight.
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