Hydrochloric Acid → 6-Chloro-2-fluoro-3-(propane-1-sulfonamido)benzoic acid

HRID 250549ノート

反応式

HRID 250549 の反応式
C([O:8][C:9](=[O:25])[C:10]1[C:15]([Cl:16])=[CH:14][CH:13]=[C:12]([NH:17][S:18]([CH2:21][CH2:22][CH3:23])(=[O:20])=[O:19])[C:11]=1[F:24])C1C=CC=CC=1.[OH-].[K+].O.Cl>O1CCCC1>[Cl:16][C:15]1[C:10]([C:9]([OH:25])=[O:8])=[C:11]([F:24])[C:12]([NH:17][S:18]([CH2:21][CH2:22][CH3:23])(=[O:19])=[O:20])=[CH:13][CH:14]=1

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14797Potassium HydroxideHCID 580867966-Chloro-2-fluoro-(propane-1-sulfonylamino)-benzoic acid benzyl ester

生成物 1

HCID 580875006-Chloro-2-fluoro-3-(propane-1-sulfonamido)benzoic acid収率 85.8%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To 6-chloro-2-fluoro-3-(propane-1-sulfonylamino)-benzoic acid benzyl ester (49, 6.00 g, 15.6 mmol) in tetrahydrofuran (100 mL) was added 1.0 M aqueous potassium hydroxide (100 mL). The reaction was heated to reflux overnight. The reaction was poured into water, acidified to pH 2 with 1 N hydrochloric acid and extracted with ethyl acetate. The organic portion was dried over anhydrous sodium sulfate, filtrated and concentrated to give a white solid 115 (3.95 g, 85.8%).

後処理

  1. temperatureThe reaction was heated
  2. temperatureto reflux overnight
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic portion was dried over anhydrous sodium sulfate
  5. filtrationfiltrated
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-cf622e92a76949f88a945950eb686fdb
出典データセット
uspto-grants-2011_01
特許番号
US07863288B2

反応ノート

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