1,2-Dimethoxyethane → 3-Ethyl-5-phenyl-2,3-dihydrobenzothiepine

HRID 1837647ノート

反応式

HRID 1837647 の反応式
COCCOC.[C:7]([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[S:21][CH2:22][CH:23]([CH2:26][CH3:27])[CH:24]=O)(=O)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1>[Zn].O>[CH2:26]([CH:23]1[CH:24]=[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=2[S:21][CH2:22]1)[CH3:27]

参加物

5

反応物 2

HCID 80711,2-DimethoxyethaneHCID 223252232-((2-Benzoylphenylthio)methyl)butyraldehyde

生成物 1

HCID 223252063-Ethyl-5-phenyl-2,3-dihydrobenzothiepine収率 77.3%

試薬・触媒・溶媒 2

HCID 23994Zinc触媒HCID 962Water溶媒

実験手順

To a mixture of 2.61 g (0.04 mole) of zinc dust and 60 mL of DME was added 7.5 g (0.048 mole) of TiCl3. The reaction mixture was held at reflux for 2 h. A solution of 2.98 g (0.01 mole) of 11 was added dropwise in 1 h. The reaction mixture was held at reflux for 18 h, cooled and poured into water. The organic was extracted into ether. The ether layer was washed with brine and filtered through Celite. The filtrate was dried over MgSO4 and concentrated. The residual oil (2.5 g) was purified by HPLC to give 2.06 g (77%) of 12 as an oil in the second fraction.

後処理

  1. temperatureat reflux for 2 h
  2. temperatureat reflux for 18 h
  3. temperaturecooled
  4. extractionThe organic was extracted into ether
  5. washThe ether layer was washed with brine
  6. filtrationfiltered through Celite
  7. dry with materialThe filtrate was dried over MgSO4
  8. concentrationconcentrated
  9. customThe residual oil (2.5 g) was purified by HPLC

出典と根拠

ORDレコード
ord-075185b33d71450eb58a362c50da4807
出典データセット
uspto-grants-2004_08
特許番号
US06784201B2

反応ノート

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