Hydrochloric Acid → HCID 19965976、化合物
反応式
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12](S(C2C=CC(C)=CC=2)(=O)=O)(SC)[CH2:13][CH:14]2[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]2)=[CH:7][C:6]=1[N+:32]([O-:34])=[O:33])([CH3:4])([CH3:3])[CH3:2].Cl.C[OH:37]>>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12](=[O:37])[CH2:13][CH:14]2[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]2)=[CH:7][C:6]=1[N+:32]([O-:34])=[O:33])([CH3:4])([CH3:3])[CH3:2]参加物
実験手順
The whole of the 2-t-butyl-5-[3-cyclohexyl-2-(4-methylphenyl)sulfonyl-2-methylthiopropyl]-1-nitrobenzene prepared as described in step (i) above was dissolved in 50 ml of methanol. 5 ml of concentrated aqueous hydrochloric acid were added, and the resulting solution was heated for 2 hours under reflux. At the end of this time, the solvent was removed by distillation under reduced pressure. The resulting residue was dissolved in diethyl ether, and the solution was washed with water, with a saturated aqueous solution of sodium hydrogen carbonate, with water and with a saturated aqueous solution of sodium chloride, in that order. The solvent was then removed by distillation under reduced pressure. The resulting residue was subjected to column chromatography through 150 g of silica gel. Elution with a 1:5 by volume mixture of ethyl acetate and hexane afforded 1.20 g (yield 73%) of the title compound as an oily substance.
後処理
- temperaturethe resulting solution was heated for 2 hours
- temperatureunder reflux
- customAt the end of this time, the solvent was removed by distillation under reduced pressure
- dissolutionThe resulting residue was dissolved in diethyl ether
- washthe solution was washed with water, with a saturated aqueous solution of sodium hydrogen carbonate, with water and with a saturated aqueous solution of sodium chloride, in that order
- customThe solvent was then removed by distillation under reduced pressure
- washElution with a 1:5
- additionby volume mixture of ethyl acetate and hexane
出典と根拠
- ORDレコード
- ord-5ac5561d2f3c40e38b85fa45973bbb79
- 出典データセット
- uspto-grants-1997_03
- 特許番号
- US05614550
反応ノート
読み込み中…