Phenyl isocyanate → {1-[(Anilinocarbonyl)amino]cyclohexyl}acetic acid

HRID 735753

반응식

HRID 735753 반응식
[NH2:1][C:2]1([CH2:8][C:9]([OH:11])=[O:10])[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1.[OH-].[Na+].[C:14]1([N:20]=[C:21]=[O:22])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>O1CCOCC1.O>[NH:20]([C:21]([NH:1][C:2]1([CH2:8][C:9]([OH:11])=[O:10])[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1)=[O:22])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

참가 물질

6

반응물 3

HCID 7672Phenyl isocyanateHCID 14798Sodium Hydroxide2회HCID 44266932-(1-Aminocyclohexyl)acetic acid hydrochloride

생성물 1

HCID 57847120{1-[(Anilinocarbonyl)amino]cyclohexyl}acetic acid수율 55.7%

시약·촉매·용매 2

HCID 962Water용매HCID 312751,4-Dioxane용매

반응 조건

온도
40 °C

실험 절차

To a solution of (1-aminocyclohexyl)acetic acid (0.232 mg, 1.48 mmol) in a mixture of 1,4-dioxane (9 ml) and water (3 ml) was added 30% aqueous sodium hydroxide solution to pH 9. Phenylisocyanate (0.24 ml, 2.22 mmol) was added dropwise at 35° C. and 30% aqueous sodium hydroxide solution was added to adjust the solution to pH9. The reaction mixture was stirred at 40° C. for 1.5 hrs and concentrated under reduced pressure. 5N Hydrochloric acid was added to acidify the solution (pH3) and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine and dried (over anhydrous MgSO4). After concentration under reduced pressure, the precipitated solid was collected by filtration and washed with diisopropy ether to give the title compound (0.228 g) as a colorless powder with contamination.

후처리

  1. concentrationconcentrated under reduced pressure
  2. addition5N Hydrochloric acid was added
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried (over anhydrous MgSO4)
  6. concentrationAfter concentration under reduced pressure
  7. filtrationthe precipitated solid was collected by filtration
  8. washwashed with diisopropy ether

출처 및 근거

ORD 기록
ord-18a11ff324034116812272839d18149a
출처 데이터셋
uspto-grants-2009_09
특허 번호
US07592453B2

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