Hydrazine hydrate (1:1) → 4-Hydrazinyl-6-(piperidin-1-yl)pyrimidine

HRID 876656Notes

Reaction equation

HRID 876656 reaction equation
O.[NH2:2][NH2:3].Cl[C:5]1[CH:10]=[C:9]([N:11]2[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]2)[N:8]=[CH:7][N:6]=1>C(O)C>[NH:2]([C:5]1[CH:10]=[C:9]([N:11]2[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]2)[N:8]=[CH:7][N:6]=1)[NH2:3]

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 5978704-Chloro-6-piperidin-1-ylpyrimidine

Product 1

HCID 441403054-Hydrazinyl-6-(piperidin-1-yl)pyrimidine

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
80 °C

Procedure

17.7 ml (18.2 g, 364.2 mmol) hydrazine hydrate are added dropwise to a solution of 6.0 g (30.4 mmol) 4-chloro-6-piperidin-1-ylpyrimidine in 50 ml ethanol at RT, while stiffing. The reaction solution is subsequently stirred at 80° C. for 16 h. For working up, the mixture is concentrated in vacuo, the residue is stirred in water, the solid which has precipitated out is filtered off, the residue on the filter is washed twice with 150 ml water each time and twice with 100 ml diethyl ether each time and the product is dried in vacuo.

Workup

  1. concentrationthe mixture is concentrated in vacuo
  2. stirringthe residue is stirred in water
  3. customthe solid which has precipitated out
  4. filtrationis filtered off
  5. washthe residue on the filter is washed twice with 150 ml water each time
  6. dry with materialtwice with 100 ml diethyl ether each time and the product is dried in vacuo

Sources & evidence

ORD record
ord-3a09ba6981e249eca5b56922820a7c3a
Source dataset
uspto-grants-2015_03
Patent number
US08987261B2

Reaction notes

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