C(OCC)(=O)CCC[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10].[C:15]1([S:21][CH2:22][C:23]([OH:25])=[O:24])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.S(=O)(=O)(O)O>C1(O)CCCCC1>[C:15]1([S:21][CH2:22][C:23]([O:25][CH:5]2[CH2:6][CH2:7][CH2:8][CH2:9][CH2:10]2)=[O:24])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1The procedure is as in Example 20 for the preparation of ethyl n-decanoate, starting with (phenylthio)acetic acid (20 g) and 36N aqueous sulphuric acid solution (0.32 cc) in cyclohexanol (100 cc). After purification by chromatography on a silica column with a mixture of cyclohexane and ethyl acetate (70:30 by volume) as eluent, cyclohexyl (phenylthio)acetate (29 g) is obtained, and is used in the crude state in the subsequent phases.
Wird geladen…