反応式
C(OP([CH:9]1[S:14][CH2:13][CH2:12][CH2:11][S:10]1)(OCC)=O)C.CCCCCC.C([Li])CCC.[CH:26]1[CH:31]=[CH:30][C:29]([C:32]([CH2:34][CH2:35][O:36][C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)=O)=[CH:28][CH:27]=1.[Cl-].[Na+]>O1CCCC1>[O:36]([C:35]1[CH:27]=[CH:28][C:29]([C:30](=[C:9]2[S:10][CH2:11][CH2:12][CH2:13][S:14]2)[CH2:31][CH3:26])=[CH:32][CH:34]=1)[C:37]1[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=1参加物
実験手順
2-Diethoxyphosphoryl-1,3-dithiane, 4.18 g, was dissolved in 40 ml of tetrahydrofuran and 10.5 ml of 1.6 mole hexane solution of n-butyl lithium was dropwise added to the solution in an argon flow at -65° C. The mixture was stirred at the same temperature for an hour. Then, a solution of 36.2 g of 4-phenoxypropiophenone in 15 ml of tetrahydrofuran was dropwise added to the mixture at the same temperature. The reaction mixture was gradually warmed to room temperature overnight. This suspension was poured onto saturated sodium chloride aqueous solution followed by extraction with chloroform. After drying the chloroform phase over magnesium sulfate, the solvent was distilled off under reduced pressure and the residue was purified by silica gel column chromatography (chloroform : hexane =1 : 1) to give 4.15 g of the product.
後処理
- extractionfollowed by extraction with chloroform
- dry with materialAfter drying the chloroform phase over magnesium sulfate
- distillationthe solvent was distilled off under reduced pressure
- customthe residue was purified by silica gel column chromatography (chloroform : hexane =1 : 1)
出典と根拠
- ORDレコード
- ord-b15c063df7fe42a486b81c6326eca2d4
- 出典データセット
- uspto-grants-1992_03
- 特許番号
- US05098928
関連ノート
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