1-Benzoyl-2-isopropylhydrazine → HCID 86711422, compound

HRID 1401061Notes

Reaction equation

HRID 1401061 reaction equation
[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10](/[CH:17]=[CH:18]/[C:19](O)=[O:20])=[CH:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:22]([NH:25][NH:26][C:27](=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)([CH3:24])[CH3:23].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C=O)C.CCOC(C)=O>[C:27]([NH:26][N:25]([C:19](=[O:20])/[CH:18]=[CH:17]/[C:10]1[C:11]2[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=2)[N:8]([C:6]([O:5][C:1]([CH3:3])([CH3:4])[CH3:2])=[O:7])[CH:9]=1)[CH:22]([CH3:24])[CH3:23])(=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

Participants

7

Reactant 4

HCID 188691-Benzoyl-2-isopropylhydrazineHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 11323657HCID 11323657, compound

Product 1

HCID 86711422HCID 86711422, compoundYield 62.3%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To solution containing (E)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)acrylic acid (1000 mg, 3.48 mmol), N′-isopropylbenzohydrazide (930.51 mg, 5.22 mmol) and HATU (1985.12 mg, 5.22 mmol) dissolved in DMF (15.0 ml), N,N-diisopropylethylamine (DIPEA)(0.90943 ml, 5.22 mmol) was slowly drop-wise added and stirred at room temperature for 12 hr. The reaction mixture was diluted with EtOAc, washed with water and brine, dried with anhydrous MgSO4 filtered, and concentrated under reduced pressure. The residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1) and dried so that ivory (E)-tert-butyl 3-(3-(2-benzoyl-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate was obtained as white solid (970 mg, 62.3%).

Workup

  1. washwashed with water and brine
  2. dry with materialdried with anhydrous MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1)
  6. dry with materialdried so that ivory (E)-tert-butyl 3-(3-(2-benzoyl-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate

Sources & evidence

ORD record
ord-93016409fc094bdcad718ca133097365
Source dataset
uspto-grants-2014_12
Patent number
US08906952B2

Reaction notes

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