[CH3:1][C:2]([N+:20]([O-:22])=[O:21])([CH3:19])[CH2:3][C:4]1[CH:18]=[CH:17][C:7]([O:8][C:9]2[CH:16]=[CH:15][C:12](C=O)=[CH:11][CH:10]=2)=[CH:6][CH:5]=1.ClC1C=C(C=CC=1)C(OO)=[O:28]>C(Cl)(Cl)Cl>[CH3:1][C:2]([N+:20]([O-:22])=[O:21])([CH3:19])[CH2:3][C:4]1[CH:18]=[CH:17][C:7]([O:8][C:9]2[CH:16]=[CH:15][C:12]([OH:28])=[CH:11][CH:10]=2)=[CH:6][CH:5]=14-(4-(2-Methyl-2-nitropropyl)phenoxy)benzaldehyde (6.00 g, 20 mmol) was dissolved in chloroform (500 mL). m-Chloroperoxy-benzoic acid (10.0 g, 58 mmol) was added in small portions at RT. After stirring for 1 hour, the mixture was concentrated in vacuo and MeOH (300 mL) added followed by the dropwise addition of conc. HCl (5 mL). This mixture was stirred for 3 hours at RT and then concentrated in vacuo. Chromatography over silica gel (MeOH/CHCl3) allowed for the isolation of 3.20 g (55%) of the desired product. MS(FD+): 287.2
불러오는 중…