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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
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HRID 2377341 반응식
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]
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5

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HCID 14797Potassium HydroxideHCID 690754702-[4-(8-Hydroxy-2,2,4,4-tetramethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester2회

생성물 1

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

시약·촉매·용매 2

HCID 887Methanol용매HCID 8028
Tetrahydrofuran
용매

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온도
80 °C

실험 절차

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%).

후처리

  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

출처 및 근거

ORD 기록
ord-81a5541d663d482dbd0c731980d97e84
출처 데이터셋
uspto-grants-2008_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07468391B2

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