4-(Ethylthio)benzaldehyde → [2-(Benzyloxy)-5-(trifluoromethyl)phenyl][4-(ethylthio)phenyl]methanol

反応式

C([Li])CCC.Br[C:7]1[CH:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[CH:10]=[CH:9][C:8]=1[O:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.[CH2:25]([S:27][C:28]1[CH:35]=[CH:34][C:31]([CH:32]=[O:33])=[CH:30][CH:29]=1)[CH3:26]>C(OCC)C>[CH2:18]([O:17][C:8]1[CH:9]=[CH:10][C:11]([C:13]([F:16])([F:15])[F:14])=[CH:12][C:7]=1[CH:32]([C:31]1[CH:34]=[CH:35][C:28]([S:27][CH2:25][CH3:26])=[CH:29][CH:30]=1)[OH:33])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

参加物

実験手順

A solution of butyl lithium (1.6M in hexane, 1.03 ml) was added to a stirred solution of the product from step (i) (0.5 g) in diethylether (20 ml) at −78° C. After 1 h, 4-ethylsulfanyl-benzaldehyde (0.25 g) was added and stirred for a further 1 h. The reaction was quenched with water, extracted with diethylether and the organic layer dried, then evaporated under reduced pressure. The residue was purified by chromatography on silica eluting with 50% diethylether/isohexane. Yield 0.7 g