反応式
C[Li].[CH2:3]([O:10][C:11]1[CH:12]=[C:13]([CH:17]=[CH:18][CH:19]=1)[C:14]([OH:16])=O)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.O1CCC[CH2:21]1.O>CCOCC>[CH3:21][C:14]([C:13]1[CH:17]=[CH:18][CH:19]=[C:11]([O:10][CH2:3][C:4]2[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:12]=1)=[O:16]参加物
6
実験手順
Over a period of 1.5 hours, methyl lithium (531 ml. of a 2 molar solution, 1.06 M) is added under a nitrogen atmosphere to a rapidly stirring solution of 3-benzyloxybenzoic acid (116 g., 0.532 M) in ether (250 ml.)-tetrahydrofuran (1400 ml.) maintained at 15°-20° C. After stirring an additional 0.75 hour at 10°-15° C., water (600 ml.) is slowly added keeping the reaction temperature below 20° C. The aqueous layer is separated and extracted with ether (3×250 ml.). The organic phases are combined, washed with saturated sodium chloride solution (4×300 ml.), dried over sodium sulfate, and concentrated under vacuum to give the product as an oil.
後処理
- temperaturemaintained at 15°-20° C
- customthe reaction temperature below 20° C
- customThe aqueous layer is separated
- extractionextracted with ether (3×250 ml.)
- washwashed with saturated sodium chloride solution (4×300 ml.)
- dry with materialdried over sodium sulfate
- concentrationconcentrated under vacuum
出典と根拠
- ORDレコード
- ord-2e2ddcc9cc8040d2a238ce1ffe707bee
- 出典データセット
- uspto-grants-1980_11
- 特許番号
- US04235913
関連ノート
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