Acryloyl chloride → 1-{4-[N-(2-isopropyloxyethyl)-N-acryloylamino]benzoyl}-4-[2-(4-chlorophenyl)ethyl]piperazine hydrochloride

HRID 1975360노트

반응식

HRID 1975360 반응식
[CH:1]([O:4][CH2:5][CH2:6][NH:7][C:8]1[CH:30]=[CH:29][C:11]([C:12]([N:14]2[CH2:19][CH2:18][N:17]([CH2:20][CH2:21][C:22]3[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=3)[CH2:16][CH2:15]2)=[O:13])=[CH:10][CH:9]=1)([CH3:3])[CH3:2].CCN(C(C)C)C(C)C.[C:40](Cl)(=[O:43])[CH:41]=[CH2:42]>O1CCCC1>[ClH:28].[CH:1]([O:4][CH2:5][CH2:6][N:7]([C:8]1[CH:30]=[CH:29][C:11]([C:12]([N:14]2[CH2:15][CH2:16][N:17]([CH2:20][CH2:21][C:22]3[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=3)[CH2:18][CH2:19]2)=[O:13])=[CH:10][CH:9]=1)[C:40](=[O:43])[CH:41]=[CH2:42])([CH3:3])[CH3:2]

참가 물질

5

반응물 3

HCID 13140Acryloyl chlorideHCID 81531DiisopropylethylamineHCID 98455471-[4-(2-Isopropyloxyethyl)aminobenzoyl]-4-[2-(4-chlorophenyl)ethyl]piperazine

생성물 1

HCID 190995021-{4-[N-(2-isopropyloxyethyl)-N-acryloylamino]benzoyl}-4-[2-(4-chlorophenyl)ethyl]piperazine hydrochloride

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

3 g of 1-{4-[N-(2-isopropyloxyethyl)amino]benzoyl}-4-[2-(4-chlorophenyl)ethyl]piperazine are dissolved in 40 ml of absolute tetrahydrofuran and cooled to 3° with stirring. There are added thereto 1.08 g of Hunig base and then, dropwise, within a period of 5 minutes, a solution of 0.65 g of acrylic acid chloride in 5 ml of absolute tetrahydrofuran. The mixture is stirred for 30 minutes at RT and concentrated by evaporation. The residue is taken up in water and ethyl acetate and the organic phase is washed until neutral with sodium hydrogen carbonate solution and water and concentrated by evaporation. The brown oil is chromatographed over silica gel. The mixture is treated with ethereal hydrochloric acid. Recrystallisation from acetone and ether yields 1-{4-[N-(2-isopropyloxyethyl)-N-acryloylamino]benzoyl}-4-[2-(4-chlorophenyl)ethyl]piperazine hydrochloride having a melting point of 132°-134°.

후처리

  1. temperaturecooled to 3°
  2. additionThere are added
  3. stirringThe mixture is stirred for 30 minutes at RT
  4. concentrationconcentrated by evaporation
  5. washethyl acetate and the organic phase is washed until neutral with sodium hydrogen carbonate solution and water
  6. concentrationconcentrated by evaporation
  7. customThe brown oil is chromatographed over silica gel
  8. additionThe mixture is treated with ethereal hydrochloric acid
  9. customRecrystallisation from acetone and ether

출처 및 근거

ORD 기록
ord-763309eaa0074622901ce370d8735008
출처 데이터셋
uspto-grants-1994_02
특허 번호
US05286728

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