Diisopropylethylamine → 1-Methyl-N'-[4-(trifluoromethyl)benzoyl]-1H-pyrazol-5-carbohydrazide

HRID 238373

반응식

HRID 238373 반응식
[F:1][C:2]([F:14])([F:13])[C:3]1[CH:12]=[CH:11][C:6]([C:7]([NH:9][NH2:10])=[O:8])=[CH:5][CH:4]=1.[CH3:15][N:16]1[C:20]([C:21](O)=[O:22])=[CH:19][CH:18]=[N:17]1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>O.CN(C)C=O>[CH3:15][N:16]1[C:20]([C:21]([NH:10][NH:9][C:7](=[O:8])[C:6]2[CH:11]=[CH:12][C:3]([C:2]([F:13])([F:14])[F:1])=[CH:4][CH:5]=2)=[O:22])=[CH:19][CH:18]=[N:17]1

참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 5206624-(Trifluoromethyl)benzohydrazideHCID 6431581-methyl-1H-pyrazole-5-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

생성물 1

HCID 866848721-Methyl-N'-[4-(trifluoromethyl)benzoyl]-1H-pyrazol-5-carbohydrazide수율 80.5%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

4-(Trifluoromethyl)benzohydrazide (583 mg) was added to a dimethylformamide (6.8 mL) solution that contained 1-methyl-1H-pyrazol-5-carboxylic acid (300 mg), O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (1.09 g) and diisopropylethylamine (830 μL) at a room temperature, and the obtained solution was then stirred for 19 hours. Thereafter, water was added to the reaction solution, and the obtained mixture was then extracted with ethyl acetate. The organic layer was washed with water and a saturated saline, and was then dried over anhydrous magnesium sulfate, followed by vacuum concentration. The obtained solid was washed with ethyl acetate/hexane (1:1), so as to obtain the title compound (598 mg) in the form of a colorless solid. The filtrate was concentrated under a reduced pressure, and the residue was then purified by column chromatography (silica gel cartridge, chloroform:methanol=10:0 to 9:1), so as to further obtain the title compound (109 mg) in the form of a colorless solid.

후처리

  1. customat a room temperature
  2. extractionthe obtained mixture was then extracted with ethyl acetate
  3. washThe organic layer was washed with water
  4. dry with materiala saturated saline, and was then dried over anhydrous magnesium sulfate
  5. concentrationfollowed by vacuum concentration
  6. washThe obtained solid was washed with ethyl acetate/hexane (1:1)

출처 및 근거

ORD 기록
ord-d2a92c3296354ea2ae6d38e2d2c47bbf
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08642626B2

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