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Diethyl Ether → 2-(4-(2-(Phenylmethyloxycarbonylamino)ethyl)phenoxy)-2-methylbutanoic Acid

HRID 1058932
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HRID 1058932 반응식
[C:1]1([CH2:7][O:8][C:9]([NH:11][CH2:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=2)=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(Cl)(Cl)Cl.[OH-:25].[Na+].[CH3:27][CH2:28]OCC.C[C:33](=[O:36])[CH2:34][CH3:35]>>[C:1]1([CH2:7][O:8][C:9]([NH:11][CH2:12][CH2:13][C:14]2[CH:15]=[CH:16][C:17]([O:20][C:34]([CH3:35])([CH2:27][CH3:28])[C:33]([OH:36])=[O:25])=[CH:18][CH:19]=2)=[O:10])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
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참가 물질

6

반응물 5

HCID 3283Diethyl EtherHCID 6212ChloroformHCID 6569Methyl Ethyl Ketone2회HCID 14798Sodium HydroxideHCID 14103856benzyl N-(2-(4-hydroxyphenyl)ethyl)carbamate

생성물 1

HCID 186694352-(4-(2-(Phenylmethyloxycarbonylamino)ethyl)phenoxy)-2-methylbutanoic Acid

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온도
30 °C

실험 절차

A solution of 4-(2-(phenylmethyloxycarbonylamino)ethyl)phenol (5.74 g; 21.16 mmole) in 2-butanone (17 mL) and chloroform (6 g) was added dropwise to a mixture of sodium hydroxide (9.0 g; 225 mmole) and 2-butanone (67 mL) whilst keeping the reaction temperature below 30° C. The mixture was allowed to stir at 30° C. for 4 h. Ether (100 mL) was added and the resultant solid was collected by filtration and washed with ether (100 mL). The solid was dissolved in water (70 mL) and any residual ether removed by evaporation. 1N Hydrochloric acid was added to adjust the pH to 1, and the resulting oil was extracted with dichloromethane (3×50 mL). The combined extracts were dried (Na2SO4) and evporated to afford a yellow oil (3.82 g; 49%). 1H-NMR (CDCl3) δ 7.26 (s, 5H), 7.09 (d, 2H, J=7.9 Hz), 6.88 (d, 2H, J=8.4 Hz), 5.09 (s, 2H), 4.75 (br s, 1H), 3.42-3.44 (m, 2H), 2.75 (t, 2H, J=6.7 Hz), 1.92-2.00 (m, 2H), 1.47 (s, 3H), 1.04 (t, 3H, J=2.6 Hz). Mass spectrometry ES+, m/e (M+H)+=372.

후처리

  1. customthe reaction temperature below 30° C
  2. filtrationthe resultant solid was collected by filtration
  3. washwashed with ether (100 mL)
  4. dissolutionThe solid was dissolved in water (70 mL)
  5. customany residual ether removed by evaporation
  6. addition1N Hydrochloric acid was added
  7. extractionthe resulting oil was extracted with dichloromethane (3×50 mL)
  8. dry with materialThe combined extracts were dried (Na2SO4)
  9. customto afford a yellow oil (3.82 g; 49%)

출처 및 근거

ORD 기록
ord-bf79c1dd1d3543c38d62ef3069e6df4b
출처 데이터셋
uspto-grants-2003_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06518290B1

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