[CH2:1]([O:8][C:9]1[C:10]([CH3:25])=[C:11]2[C:16](=[C:17]([CH3:20])[C:18]=1[CH3:19])[O:15][C:14]([CH3:24])([CH2:21][CH2:22][OH:23])[CH2:13][CH2:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:26]1([CH3:60])[CH:31]=[CH:30][C:29]([S:32]([O:35]CCC2(C)CCC3C(=C(C)C(C)=C(OCC4C=CC=CC=4)C=3C)O2)(=[O:34])=[O:33])=[CH:28][CH:27]=1>>[CH2:1]([O:8][C:9]1[C:10]([CH3:25])=[C:11]2[C:16](=[C:17]([CH3:20])[C:18]=1[CH3:19])[O:15][C:14]([CH3:24])([CH2:21][CH2:22][OH:23])[CH2:13][CH2:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:60][C:26]1[CH:31]=[CH:30][C:29]([S:32]([OH:35])(=[O:34])=[O:33])=[CH:28][CH:27]=1Using the procedure of Example 8, rac.-6-benzyloxy-2,5,7,8-tetramethylchroman-2-ethanol was converted into rac.-6-benzyloxy-2,5,7,8-tetramethylchroman-2-ethanol p-toluenesulfonate which was obtained in essentially quantitative yield as a pale-pink glass.
Wird geladen…