Water → beta-Dimethylamino-alpha-methylpropiophenone 2,4,6-triisopropylbenzenesulphonylhydrazone hydrochloride

HRID 1789115노트

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HRID 1789115 반응식
[CH:1]([C:4]1[CH:9]=[C:8]([CH:10]([CH3:12])[CH3:11])[CH:7]=[C:6]([CH:13]([CH3:15])[CH3:14])[C:5]=1[S:16]([NH:19][N:20]=[C:21]([C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)[CH:22]([CH3:27])[CH2:23][N:24]([CH3:26])[CH3:25])(=[O:18])=[O:17])([CH3:3])[CH3:2].C(C1C=C(C(C)C)C=C(C(C)C)C=1S(NN)(=O)=O)(C)C.[ClH:54].CC(CN(C)C)C(C1C=CC=CC=1)=O.O>C(Cl)Cl.C(O)(=O)C>[ClH:54].[CH:1]([C:4]1[CH:9]=[C:8]([CH:10]([CH3:11])[CH3:12])[CH:7]=[C:6]([CH:13]([CH3:14])[CH3:15])[C:5]=1[S:16]([NH:19][N:20]=[C:21]([C:28]1[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=1)[CH:22]([CH3:27])[CH2:23][N:24]([CH3:25])[CH3:26])(=[O:18])=[O:17])([CH3:2])[CH3:3]

참가 물질

7

반응물 4

HCID 962WaterHCID 1999923-(Dimethylamino)-2-methylpropiophenone hydrochlorideHCID 3593332,4,6-TriisopropylbenzenesulphonohydrazideHCID 86741736beta-Dimethylamino-alpha-methylpropiophenone 2,4,6-triisopropylbenzenesulphonylhydrazone

생성물 1

HCID 86741737beta-Dimethylamino-alpha-methylpropiophenone 2,4,6-triisopropylbenzenesulphonylhydrazone hydrochloride

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 6344Dichloromethane용매

실험 절차

β-Dimethylamino-α-methylpropiophenone 2,4,6-triisopropylbenzenesulphonylhydrazone can be prepared as follows: 2,4,6-triisopropylbenzenesulphonylhydrazine (23.8 g) is added to α-methyl-β-dimethylaminopropiophenone hydrochloride (16.3 g) dissolved in methylene chloride (150 cc) and acetic acid (5 cc). The solution is stirred at ambient temperature for 24 hours and is then poured into water (50 cc). The aqueous phase is extracted with methylene chloride (2×50 cc) and then the organic phases are combined, dried over magnesium sulphate, filtered and evaporated to dryness under reduced pressure (2.7 kPa) at 40° C. to give a yellow oil which is crystallised in a mixture (120 cc) of ethyl acetate and isopropyl ether (50/50 by volume). In this way β-dimethylamino-α-methylpropiophenone 2,4,6-triisopropylbenzenesulphonylhydrazone hydrochloride (16 g) is obtained in the form of a white solid melting at 147° C.

후처리

  1. extractionThe aqueous phase is extracted with methylene chloride (2×50 cc)
  2. dry with materialdried over magnesium sulphate
  3. filtrationfiltered
  4. customevaporated to dryness under reduced pressure (2.7 kPa) at 40° C.
  5. customto give a yellow oil which
  6. customis crystallised in a mixture (120 cc) of ethyl acetate and isopropyl ether (50/50 by volume)

출처 및 근거

ORD 기록
ord-cad463dd5b794184bd05ea983ee11d4c
출처 데이터셋
uspto-grants-1987_08
특허 번호
US04686309

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