(5-Methyl-1-trityl-1H-imidazol-4-yl)methanol → 5-methyl-1-trityl-1H-imidazole-4-carbaldehyde
反応式
[CH3:1][C:2]1[N:6]([C:7]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:5]=[N:4][C:3]=1[CH2:26][OH:27]>[O-2].[O-2].[Mn+4].O1CCOCC1>[CH3:1][C:2]1[N:6]([C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)([C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:5]=[N:4][C:3]=1[CH:26]=[O:27]参加物
4
実験手順
A mixture of 5-methyl-1-(triphenylmethyl)-1H-imidazole-4-methanol (4.0 g), manganese dioxide (activated) (40 g) and dioxane (225 ml) was stirred at room temperature overnight. The suspension was filtered and the solid was washed with hot chloroform (1 l). The combined filtrates were evaporated in vacuo to leave a solid (4.0 g) which was purified by FCC eluting with chloroform to give a solid which was triturated with hexane (ca. 50 ml) to give the title compound (2.99 g), m.p. 184°-188° (decomp.).