Methane → N-[4-(Phenylsulfonyl)phenyl]-1-hydroxy-cyclopentanecarboxamide
反応式
[OH:1][C:2]1([C:7]([OH:9])=O)[CH2:6][CH2:5][CH2:4][CH2:3]1.S(Cl)(Cl)=O.[C:14]1([S:20]([C:23]2[CH:29]=[CH:28][C:26]([NH2:27])=[CH:25][CH:24]=2)(=[O:22])=[O:21])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.C>CC(N(C)C)=O>[C:14]1([S:20]([C:23]2[CH:24]=[CH:25][C:26]([NH:27][C:7]([C:2]3([OH:1])[CH2:3][CH2:4][CH2:5][CH2:6]3)=[O:9])=[CH:28][CH:29]=2)(=[O:21])=[O:22])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1参加物
反応条件
- 温度
- -10 °C
実験手順
A solution of 1-hydroxycyclopentanecarboxylic acid (0.76 g, 6.4 mmol) in dry dimethylacetamide (15 ml) was stirred under a nitrogen atmosphere at -10° C. Thionyl chloride (0.76 g, 6.4 mmol) was added and the resulting mixture was allowed to stir at -10° C. for 1 hour. 4-Phenylsulfonylaniline (1.0 g, 4.29 mmol) was then added and the reaction mixture was stirred at -10° C. for a further 15 mins. The solution was then allowed to warm to room temperature where it was stirred overnight. The reaction mixture was poured onto water, extracted with ethyl acetate, and the combined ethyl acetate portions were washed with water, and brine. After drying (Na2SO4) the ethyl acetate was removed by evaporation. Crystallization from ethyl acetate/hexane yielded the title tertiary carbinol (0.70 g, 47%) as a white solid; mp=214.0°-216.0° C. 1H-NMR (300 MHz, d6 -DMSO): 1.73 (m, 6H, CH2), 1.97 (m, 2H, CH2), 5.67 (s, 1H, OH), 7.64 (m, 3H, ArH), 7.94 (m, 6H, ArH), 10.13 (s, 1H, NH). MS (CI, CH4): 346(M+1, 100).
後処理
- stirringthe reaction mixture was stirred at -10° C. for a further 15 mins
- temperatureto warm to room temperature where it
- stirringwas stirred overnight
- additionThe reaction mixture was poured onto water
- extractionextracted with ethyl acetate
- washthe combined ethyl acetate portions were washed with water, and brine
- dry with materialAfter drying (Na2SO4) the ethyl acetate
- customwas removed by evaporation
- customCrystallization from ethyl acetate/hexane
- customyielded the title tertiary carbinol (0.70 g, 47%) as a white solid
出典と根拠
- ORDレコード
- ord-aadde0cc1b864fab85aa3149055c2515
- 出典データセット
- uspto-grants-1996_10
- 特許番号
- US05565465
反応ノート
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