[CH3:1][C:2]([C:5]1[CH:6]=[C:7]([S:16][CH2:17][CH2:18][C:19]([O:21][CH3:22])=[O:20])[CH:8]=[C:9]([C:12]([CH3:15])([CH3:14])[CH3:13])[C:10]=1[OH:11])([CH3:4])[CH3:3].ClC1C=CC=C(C(OO)=[O:31])C=1>C(Cl)Cl>[CH3:15][C:12]([C:9]1[CH:8]=[C:7]([S:16]([CH2:17][CH2:18][C:19]([O:21][CH3:22])=[O:20])=[O:31])[CH:6]=[C:5]([C:2]([CH3:1])([CH3:3])[CH3:4])[C:10]=1[OH:11])([CH3:13])[CH3:14]The title compound of Example 5 (0.5 g, 0.0015 mole), meta-chloroper-benzoic acid (0.32 g, 0.0015 mole) and methylene chloride (25 ml) were stirred under argon for 12 hours. The excess peroxide was destroyed with a saturated potassium carbonate solution, the phases separated, washed with hexane and water, and dried over magnesium sulfate The solid was filtered, recrystallized from ethyl ether and methylene chloride and dried in vacuo, m.p. ca. 106°-108° C. Analysis calc. for C18H28O4S(340.48):
Loading…