Water → 4-Dimethylamino-4-phenylcyclohexanecarbaldehyde

Participants

Reaction Steps

46 mmol (10.0 g) of 4-dimethylamino-4-phenylcyclohexanone were dissolved in toluene. This solution was added dropwise at 70° C. to a suspension of 138.1 mmol, (47.33 g) methoxymethyl triphenylphosphonium chloride and 138.1 mmol (25.82 g) potassium tert.-butylate. The mixture was stirred for a few more hours at 70° C., hydrolysed with water and extracted using EE. The combined organic phases were washed with saturated NaCl solution, dried over sodium sulphate and concentrated. The resultant brown resin was chromatographed using silica gel. The desired aldehyde is obtained as a cis/trans-mixture.

Provenance & Evidence