Triethylamine → (5-((2-Mercapto-2-methylpropylthio)methyl)-1,3-phenylene)dimethanol

反応式

[SH:1][CH2:2][C:3]1[CH:4]=[C:5]([CH2:11][OH:12])[CH:6]=[C:7]([CH2:9][OH:10])[CH:8]=1.C(N(CC)CC)C.[CH3:20][C:21]1([CH3:24])[CH2:23][S:22]1>CO>[SH:22][C:21]([CH3:24])([CH3:23])[CH2:20][S:1][CH2:2][C:3]1[CH:4]=[C:5]([CH2:11][OH:12])[CH:6]=[C:7]([CH2:9][OH:10])[CH:8]=1

参加物

実験手順

(5-(mercaptomethyl)-1,3-phenylene)dimethanol (0.163 g, 0.885 mmol) was dissolved in methanol (3 mL) in a small vial and a stir bar was added. To this solution was added triethylamine (0.016 mL, 0.118 mmol) followed by 2,2-dimethylthiirane (0.058 mL, 0.590 mmol) and the resulting mixture was capped and stirred overnight (16 hrs) at room temperature. The reaction was then concentrated, redissolved in dichloromethane, loaded onto a silica ptlc plate (1000 micron) and the plate was developed using 10% methanol in dichloromethane. The band corresponding to the product was scraped, filtered with neat ethyl acetate, and concentrated to give (5-((2-mercapto-2-methylpropylthio)methyl)-1,3-phenylene)dimethanol (0.095 g, 0.349 mmol, 59.1% yield). 1H NMR (400 Hz, CDCl3): δ 7.26 (s, 3H), 4.69 (s, 4H), 3.82 (s, 2H), 2.74 (s, 2H), 2.17 (s, 1H), 2.12 (br s, 2H), 1.43 (s, 6H); 13C NMR (400 Hz, CDCl3): δ 141.6, 138.9, 126.7, 124.3, 65.0, 49.0, 45.4, 38.4, 31.5; MS (m/z), expected: 272.4, found 295.0 (M+Na). See FIG. 30.