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Tetrahydrofuran → 2,3-Dimethoxy-7-[2-(2-pyridyloxy)ethyl]-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione

HRID 2268551
ノート
印刷プレビュー

反応式

HRID 2268551 の反応式
C[O:2][C:3]1[C:8]2[CH2:9][CH2:10][CH:11]([CH2:14][CH2:15][O:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=3)[CH2:12][CH2:13][C:7]=2[C:6]([O:23]C)=[C:5]([O:25][CH3:26])[C:4]=1[O:27][CH3:28].N1C(C(O)=O)=CC=CC=1C(O)=O.C1COCC1.O=[N+]([O-])[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[Ce+4].[NH4+].[NH4+]>C(=O)(O)[O-].[Na+].O>[CH3:28][O:27][C:4]1[C:3](=[O:2])[C:8]2[CH2:9][CH2:10][CH:11]([CH2:14][CH2:15][O:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=3)[CH2:12][CH2:13][C:7]=2[C:6](=[O:23])[C:5]=1[O:25][CH3:26]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 8028TetrahydrofuranHCID 103672,6-Pyridinedicarboxylic acidHCID 180504Ceric ammonium nitrateHCID 183486022-[2-(1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-7-yl)ethoxy]pyridine

生成物 1

HCID 183486222,3-Dimethoxy-7-[2-(2-pyridyloxy)ethyl]-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione収率 75.9%

試薬・触媒・溶媒 2

HCID 962Water溶媒2 回HCID 516892Sodium Bicarbonate溶媒

実験手順

To a mixture of 2-[2-(1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-7-yl)ethoxy]pyridine (700 mg), pyridine-2,6-dicarboxylic acid (907 mg), THF (14 ml), and water (7 ml) was added an water (7 ml) solution of CAN (3.97 g) with cooling with ice. After being stirred for 15 min, the reaction mixture was diluted with saturated aqueous sodium bicarbonate and extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride and dried. The solvent was removed in vacuo. The residue was purified by silica gel column chromatography (hexane to hexane:ethyl acetate=1:2) to obtain the entitled compound (490 mg) as an oil.

後処理

  1. temperaturewith cooling with ice
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. customdried
  5. customThe solvent was removed in vacuo
  6. customThe residue was purified by silica gel column chromatography (hexane to hexane:ethyl acetate=1:2)

出典と根拠

ORDレコード
ord-4757479ae84a4f638ee8666e10b285e1
出典データセット
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06326369B1

反応ノート

読み込み中…

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