tert-Butyl carbazate → tert-butyl N'-{(E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acryloyl}hydrazinecarboxylate

HRID 2235681Notes

Reaction equation

HRID 2235681 reaction equation
C1C=CC2N(O)N=NC=2C=1.[CH3:11][O:12][C:13]1[CH:14]=[C:15](/[CH:25]=[CH:26]/[C:27]([OH:29])=O)[CH:16]=[CH:17][C:18]=1[N:19]1[CH:23]=[C:22]([CH3:24])[N:21]=[CH:20]1.[C:30]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])(=[O:33])[NH:31][NH2:32].C(N(C(C)C)CC)(C)C.O.C(=O)(O)[O-].[Na+]>CN(C=O)C.C(OCC)(=O)C.C(Cl)CCl>[CH3:11][O:12][C:13]1[CH:14]=[C:15](/[CH:25]=[CH:26]/[C:27]([NH:32][NH:31][C:30]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])=[O:29])[CH:16]=[CH:17][C:18]=1[N:19]1[CH:23]=[C:22]([CH3:24])[N:21]=[CH:20]1

Participants

9

Reactant 5

HCID 70091tert-Butyl carbazateHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 59528030(E)-3-[3-methoxy-4-(4-methylimidazol-1-yl)phenyl]acrylic acidHCID 86585896Sodium bicarbonate water

Product 1

HCID 66839145tert-butyl N'-{(E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acryloyl}hydrazinecarboxylateYield 87.5%

Reagents, catalysts & solvents 3

HCID 111,2-DichloroethaneSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

HOBT (420 mg) and EDC (590 mg) were sequentially added to a solution of (E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acrylic acid (530 mg), tert-butyl carbazate (271 mg) and IPEA (0.71 mL) in DMF (10 mL), and the reaction solution was stirred at room temperature for 15 hours. Ethyl acetate and saturated sodium bicarbonate water were added to the reaction solution, and the organic layer was separated. The resulting organic layer was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The resulting solid was recrystallized from a mixed solution of ethyl acetate and ethanol to obtain 668 mg of the title compound. The property values of the compound are as follows.

Workup

  1. customthe organic layer was separated
  2. dry with materialThe resulting organic layer was dried over anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe resulting solid was recrystallized from a mixed solution of ethyl acetate and ethanol

Sources & evidence

ORD record
ord-aa93e6beca734ef289fb33686c1427d1
Source dataset
uspto-grants-2010_05
Patent number
US07713993B2

Reaction notes

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