Lithium hydroxide, monohydrate → 2-(5-(Trifluoromethyl)pyridin-2-yl)benzoic acid

HRID 841775

反応式

HRID 841775 の反応式
C([O:4][C:5](=[O:22])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=1[C:12]1[CH:17]=[CH:16][C:15]([C:18]([F:21])([F:20])[F:19])=[CH:14][N:13]=1)(C)C.O.[OH-].[Li+]>O1CCCC1CO.O>[F:20][C:18]([F:19])([F:21])[C:15]1[CH:16]=[CH:17][C:12]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[C:5]([OH:22])=[O:4])=[N:13][CH:14]=1

参加物

4

反応物 2

HCID 168937Lithium hydroxide, monohydrateHCID 698912952-(5-Trifluoromethyl-pyridin-2-yl)-benzoic acid isopropyl ester

生成物 1

HCID 227369092-(5-(Trifluoromethyl)pyridin-2-yl)benzoic acid

試薬・触媒・溶媒 1

HCID 66577907Tetrahydrofuran-methanol water溶媒

実験手順

2-(5-Trifluoromethyl-pyridin-2-yl)-benzoic acid isopropyl ester was dissolved in 10 ml of a 3:1:1 mixture of tetrahydrofuran-methanol-water, and lithium hydroxide monohydrate (161 mg, 3.84 mmol) was added. After stirring for 3 h at room temperature, the volatiles were removed under vacuum and 5 ml of water were added to the mixture, which was brought to pH 6 with 1N HCl. The resulting slurry was extracted with ethyl acetate, the combined organic layers were dried (magnesium sulfate), filtered and concentrated under vacuum to provide the title compound.

後処理

  1. additionwas added
  2. customthe volatiles were removed under vacuum and 5 ml of water
  3. additionwere added to the mixture, which
  4. extractionThe resulting slurry was extracted with ethyl acetate
  5. dry with materialthe combined organic layers were dried (magnesium sulfate)
  6. filtrationfiltered
  7. concentrationconcentrated under vacuum

出典と根拠

ORDレコード
ord-ba7b74c984b54a368ce98a401e2c202e
出典データセット
uspto-grants-2002_04
特許番号
US06369075B1

関連ノート

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