Sodium hydride → 4-Chloro-6-methyl-11h-5-oxa-10-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

HRID 1695274ノート

反応式

HRID 1695274 の反応式
[H-].[Na+].[CH3:3][O:4][C:5](=[O:24])[C:6]1[CH:11]=[C:10]([CH3:12])[C:9](Br)=[C:8]([S:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([Cl:22])[C:17]=2[OH:23])[CH:7]=1>CN(C=O)C>[CH3:3][O:4][C:5]([C:6]1[CH:11]=[C:10]([CH3:12])[C:9]2[O:23][C:17]3[C:18]([Cl:22])=[CH:19][CH:20]=[CH:21][C:16]=3[CH2:15][S:14][C:8]=2[CH:7]=1)=[O:24]

参加物

4

反応物 2

HCID 24758Sodium hydrideHCID 67246085HCID 67246085、化合物

生成物 1

HCID 672474734-Chloro-6-methyl-11h-5-oxa-10-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

Sodium hydride (1.65 g, 0.068 mol) was added portionwise to a solution of compound of Example 15a (23 g, 0.057 mol) in DMF (600 mL) and stirred at 80° C. for 10 h. The solvent was removed, and chloroform (300 mL) was added. The organic layer was washed with 10% HCl (2×80 mL), followed by water (100 mL), and brine and dried over anhydrous sodium sulphate. The solvent was removed and the crude product obtained was purified by column chromatography (silica gel, ethyl acetate/pet ether) to obtain the title compound. Yield: 9 g, (49%); 1H NMR (CDCl3, 300 MHz): δ 2.50 (s, 3H, CH3), 3.91 (s, 3H, OCH3), 4.21 (s, 2H, CH2), 7.05 (m, 2H, Ar), 7.28 (d, 1H, Ar), 7.60 (d, 2H, Ar); MS: m/e (El) 320 (M+).

後処理

  1. customThe solvent was removed
  2. additionchloroform (300 mL) was added
  3. washThe organic layer was washed with 10% HCl (2×80 mL)
  4. dry with materialdried over anhydrous sodium sulphate
  5. customThe solvent was removed
  6. customthe crude product obtained
  7. customwas purified by column chromatography (silica gel, ethyl acetate/pet ether)

出典と根拠

ORDレコード
ord-6933704032b4413d848ed23159a09fe2
出典データセット
uspto-grants-2012_04
特許番号
US08163730B2

反応ノート

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