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Potassium Hydroxide → 2-[4-(8-Hydroxy-2,2,4,4-tetramethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid

HRID 2377341
ノート
印刷プレビュー

反応式

HRID 2377341 の反応式
C[O:2][C:3](=[O:30])[C:4]([C:7]1[CH:12]=[CH:11][C:10]([C:13]#[C:14][C:15]2[CH:16]=[C:17]3[C:22](=[C:23]([OH:25])[CH:24]=2)[O:21][C:20]([CH3:27])([CH3:26])[CH2:19][C:18]3([CH3:29])[CH3:28])=[CH:9][CH:8]=1)([CH3:6])[CH3:5].[OH-].[K+]>CO.O1CCCC1>[OH:25][C:23]1[CH:24]=[C:15]([C:14]#[C:13][C:10]2[CH:11]=[CH:12][C:7]([C:4]([CH3:6])([CH3:5])[C:3]([OH:30])=[O:2])=[CH:8][CH:9]=2)[CH:16]=[C:17]2[C:22]=1[O:21][C:20]([CH3:27])([CH3:26])[CH2:19][C:18]2([CH3:29])[CH3:28]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 14797Potassium HydroxideHCID 690754702-[4-(8-Hydroxy-2,2,4,4-tetramethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester2 回

生成物 1

HCID 112115262-[4-(8-Hydroxy-2,2,4,4-tetramethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid収率 100%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
80 °C

実験手順

A solution of 2-[4-(8-hydroxy-2,2,4,4-tetramethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester (Intermediate 23, 0.035 g, 0.087 mmol) in methanol (2 mL) and tetrahydrofuran (1 mL) was treated with a 1M solution of potassium hydroxide (2 mL, 4 mmol) and the resulting reaction mixture was stirred at 80° C. for 2 h. The volatiles were evaporated in vacuo to a residue that was neutralized with saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The organic phase was washed with water and brine, and dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title product as a yellow solid (0.034 g, 100%).

後処理

  1. customthe resulting reaction mixture
  2. customThe volatiles were evaporated in vacuo to a residue that
  3. extractionextracted with ethyl acetate
  4. washThe organic phase was washed with water and brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. customevaporated in vacuo

出典と根拠

ORDレコード
ord-81a5541d663d482dbd0c731980d97e84
出典データセット
uspto-grants-2008_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07468391B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート