Triethylamine → HCID 66875916, compound

HRID 1918163Notes

Reaction equation

HRID 1918163 reaction equation
[CH:1]1([C:4]2[CH:8]=[C:7]([NH2:9])[N:6]([C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)[N:5]=2)[CH2:3][CH2:2]1.C(N(CC)CC)C.Cl[C:24]([O:26][C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)=[O:25]>C1CCCCC1>[CH:1]1([C:4]2[CH:8]=[C:7]([NH:9][C:24](=[O:25])[O:26][C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[N:6]([C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)[N:5]=2)[CH2:3][CH2:2]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 15891Phenyl chloroformateHCID 27580103-Cyclopropyl-1-phenyl-1H-pyrazol-5-amine

Product 1

HCID 66875916HCID 66875916, compoundYield 63%

Reagents, catalysts & solvents 1

HCID 8078CyclohexaneSolvent

Procedure

To a stirred solution of 3-cyclopropyl-1-phenyl-1H-pyrazol-5-amine (1.00 g, 5.03 mmol) and triethylamine (0.66 g, 6.53 mmol) at rt, was added phenyl chloroformate (0.94 g, 6.01 mmol). The reaction mixture was stirred at rt for 15 h. The reaction mixture was partitioned between a mixture of dichloromethane (20 mL) and water (20 mL) and the organic layer was washed thrice with water, dried over sodium sulfate, filtered and concentrated under reduced pressure to give yellow oil. Trituration with cyclohexane afforded phenyl 3-cyclopropyl-1-phenyl-1H-pyrazol-5-ylcarbamate (1.01 g, 63%) as a colorless solid. 1H NMR (400 MHz, DMSO-d6) δ 10.05 (s, 1H), 6.71-7.55 (m, 10H), 6.18 (s, 1H), 1.92 (m, 1H), 0.91 (m, 2H), 0.73 (m, 2H).

Workup

  1. customThe reaction mixture was partitioned between a mixture of dichloromethane (20 mL) and water (20 mL)
  2. washthe organic layer was washed thrice with water
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto give yellow oil

Sources & evidence

ORD record
ord-97ea149a5ed34ed6a2a83304d2d8e805
Source dataset
uspto-grants-2013_12
Patent number
US08618289B2

Reaction notes

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