Ethanol → N-(3-methyl-benzylidene)-N'-(7-morpholin-4-yl-3-phenyl-pyrazolo[1,5-a]pyrimidin-5-yl)-hydrazine

HRID 1878525Notes

Reaction equation

HRID 1878525 reaction equation
Cl[C:2]1[CH:7]=[C:6]([N:8]2[CH2:13][CH2:12][O:11][CH2:10][CH2:9]2)[N:5]2[N:14]=[CH:15][C:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)=[C:4]2[N:3]=1.O.[NH2:24][NH2:25].[CH2:26](O)[CH3:27]>>[CH3:19][C:18]1[CH:17]=[C:16]([CH:4]=[CH:26][CH:27]=1)[CH:15]=[N:24][NH:25][C:2]1[CH:7]=[C:6]([N:8]2[CH2:13][CH2:12][O:11][CH2:10][CH2:9]2)[N:5]2[N:14]=[CH:15][C:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)=[C:4]2[N:3]=1

Participants

4

Reactant 3

HCID 702EthanolHCID 24654Hydrazine hydrate (1:1)HCID 585311525-Chloro-7-morpholin-4-yl-3-phenyl-pyrazolo[1,5-a]pyrimidine

Product 1

HCID 76814774N-(3-methyl-benzylidene)-N'-(7-morpholin-4-yl-3-phenyl-pyrazolo[1,5-a]pyrimidin-5-yl)-hydrazine

Conditions

Temperature
150 °C

Procedure

There was suspended, in ethanol (2 mL), 5-chloro-7-morpholin-4-yl-3-phenyl-pyrazolo[1,5-a]pyrimidine (42.1 mg, 0.134 mM) and then hydrazine monohydrate (65.0 μL, 1.34 mM) was added to the suspension. This suspension was stirred at 150° C. for 20 minutes under the irradiation with microwaves, the solvent was then distilled off, the resulting residue was diluted with a saturated aqueous common salt solution and extracted with ethyl acetate. The extracts thus obtained were combined, dried over anhydrous sodium sulfate, and the solvent was then distilled off. The resulting residue was suspended in ethanol (2 mL), then acetic acid (2.0 μL, 0.035 mM) and 3-methyl-benzaldehyde (15.8 μL, 0.134 mM) were added to the suspension and the mixture was stirred at room temperature for 2 hours and a half.

Workup

  1. distillationthe solvent was then distilled off
  2. additionthe resulting residue was diluted with a saturated aqueous common salt solution
  3. extractionextracted with ethyl acetate
  4. customThe extracts thus obtained
  5. dry with materialdried over anhydrous sodium sulfate
  6. distillationthe solvent was then distilled off
  7. additionacetic acid (2.0 μL, 0.035 mM) and 3-methyl-benzaldehyde (15.8 μL, 0.134 mM) were added to the suspension
  8. stirringthe mixture was stirred at room temperature for 2 hours

Sources & evidence

ORD record
ord-45991ac0a9554cacb441d19bbeeec47b
Source dataset
uspto-grants-2012_11
Patent number
US08314098B2

Reaction notes

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