Sodium Hydroxide → 4-Cyano-3-(2,4-dichlorophenyl)-5-morpholin-4-ylthiophene-2-carboxylic acid

HRID 1926601ノート

反応式

HRID 1926601 の反応式
[C:1]([C:3]1[C:4]([C:19]2[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:20]=2[Cl:26])=[C:5]([C:14]([O:16]CC)=[O:15])[S:6][C:7]=1[N:8]1[CH2:13][CH2:12][O:11][CH2:10][CH2:9]1)#[N:2].[OH-].[Na+]>C1COCC1.CO.O>[C:1]([C:3]1[C:4]([C:19]2[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:20]=2[Cl:26])=[C:5]([C:14]([OH:16])=[O:15])[S:6][C:7]=1[N:8]1[CH2:9][CH2:10][O:11][CH2:12][CH2:13]1)#[N:2]

参加物

4

反応物 2

HCID 14798Sodium HydroxideHCID 44155898Ethyl 4-cyano-3-(2,4-dichlorophenyl)-5-morpholin-4-ylthiophene-2-carboxylate

生成物 1

HCID 441556654-Cyano-3-(2,4-dichlorophenyl)-5-morpholin-4-ylthiophene-2-carboxylic acid収率 62%

試薬・触媒・溶媒 1

HCID 21892291Methanol tetrahydrofuran water溶媒

実験手順

To a solution of ethyl 4-cyano-3-(2,4-dichlorophenyl)-5-morpholin-4-ylthiophene-2-carboxylate (0.060 g, 0.15 mmol) in THF/MeOH/water (2:1:2) (5 mL) was added sodium hydroxide (0.061 g, 1.5 mmol). The reaction mixture was allowed to stir at rt for 20 h and was concentrated. The residue was acidified with 1N HCl and was extracted with EtOAc. The organic solutions were combined, washed with brine, dried over MgSO4, filtered and concentrated to give 4-cyano-3-(2,4-dichlorophenyl)-5-morpholin-4-ylthiophene-2-carboxylic acid (0.034 g, 62%). LCMS: (FA) ES+ 382.9. 1H NMR (400 MHz, d6-DMSO) δ: 7.75 (d, 1H), 7.50 (dd, 1H), 7.39 (d, 1H), 3.79-3.74 (m, 4H) and 3.61-3.55 (m, 4H).

後処理

  1. concentrationwas concentrated
  2. extractionwas extracted with EtOAc
  3. washwashed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-c66cf204ccb54f7f92736809f3336431
出典データセット
uspto-grants-2012_05
特許番号
US08183240B2

反応ノート

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