Pyrazole → tert-butyl 4-(1H-pyrazol-1-yl)piperidine-1-carboxylate

HRID 1426395Notes

Reaction equation

HRID 1426395 reaction equation
[NH:1]1[CH:5]=[CH:4][CH:3]=[N:2]1.[H-].[Na+].CS(O[CH:13]1[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:15][CH2:14]1)(=O)=O>CN(C=O)C>[N:1]1([CH:13]2[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:15][CH2:14]2)[CH:5]=[CH:4][CH:3]=[N:2]1

Participants

5

Reactant 3

HCID 1048PyrazoleHCID 24758Sodium hydrideHCID 41848691-(tert-Butoxycarbonyl)-4-(methanesulfonyloxy)piperidine

Product 1

HCID 67971778tert-butyl 4-(1H-pyrazol-1-yl)piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a solution of pyrazole (100 mg, 1.50 mmol) in DMF (10.0 ml) under nitrogen atmosphere was added sodium hydride (60 mg, 1.65 mmol) and the solution stirred for 5 min. After bubbling ceased, the title compound from Step A (204 mg, 1.50 mmol) in 2.5 mL of DMF was added to the solution. The mixture was placed in a microwave reaction vessel and nitrogen was blown into it before closing.

Workup

  1. customAfter bubbling
  2. customThe mixture was placed in a microwave reaction vessel and nitrogen

Sources & evidence

ORD record
ord-e62e029c37f44426b7e8ca9c1ca37a92
Source dataset
uspto-grants-2015_01
Patent number
US08933102B2

Reaction notes

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