Hydrochloric Acid → HCID 68285339、化合物

HRID 1518702ノート

反応式

HRID 1518702 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:12][C:11]([C:13]([O:15]CC)=[O:14])=[C:10]([C:18]3[CH:23]=[CH:22][C:21]([S:24](=[O:27])(=[O:26])[NH2:25])=[CH:20][CH:19]=3)[CH:9]=2)=[CH:4][CH:3]=1.[OH-].[Na+].Cl>C(O)C.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[S:12][C:11]([C:13]([OH:15])=[O:14])=[C:10]([C:18]3[CH:23]=[CH:22][C:21]([S:24](=[O:27])(=[O:26])[NH2:25])=[CH:20][CH:19]=3)[CH:9]=2)=[CH:6][CH:7]=1

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 68285874HCID 68285874、化合物2 回

生成物 1

HCID 68285339HCID 68285339、化合物収率 90.9%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒2 回

反応条件

温度
75 °C

実験手順

Ethyl 5-(4-chlorophenyl)-3-(4-sulfamoylphenyl)thiophene-2-carboxylate (compound 33b, 1.3 g, 3.08 mmol) was suspended in ethanol (30 ml) and solution of NaOH (0.61 g, 15.4 mmol) in water (3 ml) was added to it at 25° C. The reaction mixture was then heated at about 75° C. under stirring for 3 hr. The progress of the reaction was monitored by TLC. The reaction mixture was then concentrated under reduced pressure. The residue so obtained was diluted with water (5 ml) and cooled using ice bath. To the cooled mixture was then added aqueous 10% HCl to bring pH to between 5 and 6. The mixture so obtained was extracted with ethyl acetate (3×25 ml). The combined organic layer was dried over anhydrous Na2SO4. The solvent was evaporated from the dried organic layer under reduced pressure to obtain the title compound (1.10 g, 90.9%).

後処理

  1. concentrationThe reaction mixture was then concentrated under reduced pressure
  2. customThe residue so obtained
  3. temperaturecooled
  4. customThe mixture so obtained
  5. extractionwas extracted with ethyl acetate (3×25 ml)
  6. dry with materialThe combined organic layer was dried over anhydrous Na2SO4
  7. customThe solvent was evaporated from the dried organic layer under reduced pressure

出典と根拠

ORDレコード
ord-a99cf78b0d834c6e8cc7a9ed235a01e3
出典データセット
uspto-grants-2015_07
特許番号
US09072731B2

反応ノート

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