3-(Trifluoromethyl)aniline → 8-Ethyl-N-[3-(trifluoromethyl)phenyl]-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-5-amine

HRID 1704767Notes

Reaction equation

HRID 1704767 reaction equation
Cl[C:2]1[C:7]2[CH:8]=[N:9][C:10]3[N:14]([CH2:15][CH3:16])[N:13]=[CH:12][C:11]=3[C:6]=2[N:5]2[N:17]=[CH:18][N:19]=[C:4]2[N:3]=1.C(N(CC)CC)C.[F:27][C:28]([F:37])([F:36])[C:29]1[CH:30]=[C:31]([CH:33]=[CH:34][CH:35]=1)[NH2:32]>C(O)CCC>[CH2:15]([N:14]1[C:10]2[N:9]=[CH:8][C:7]3[C:2]([NH:32][C:31]4[CH:33]=[CH:34][CH:35]=[C:29]([C:28]([F:27])([F:36])[F:37])[CH:30]=4)=[N:3][C:4]4[N:5]([N:17]=[CH:18][N:19]=4)[C:6]=3[C:11]=2[CH:12]=[N:13]1)[CH3:16]

Participants

5

Reactant 3

HCID 73753-(Trifluoromethyl)anilineHCID 8471TriethylamineHCID 227584865-Chloro-8-ethyl-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]-triazolo[1,5-a]pyrimidine

Product 1

HCID 227585048-Ethyl-N-[3-(trifluoromethyl)phenyl]-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidin-5-amine

Reagents, catalysts & solvents 1

HCID 2631-ButanolSolvent

Procedure

5.8 g. of 5-chloro-8-ethyl-8H-pyrazolo[4',3':5,6]-pyrido[3,4-e][1,2,4]triazolo[1,5-a]pyrimidine (0.02 mol.), 3 g. of triethylamine and 3.3. g. of 3-trifluoromethylaniline are refluxed in butyl alcohol for 24 hours with stirring. The solvent is removed in vacuo and the residue treated with 20 ml. of water and filtered off. Recrystallization from alcohol yields 8-ethyl-N-[3-(trifluoromethyl)phenyl]-8H-pyrazolo[4',3':5,6]pyrido[3,4-e][1,2,4]triazolo[1,5-a]-pyrimidin-5-amine.

Workup

  1. customThe solvent is removed in vacuo
  2. additionthe residue treated with 20 ml
  3. filtrationof water and filtered off
  4. customRecrystallization from alcohol

Sources & evidence

ORD record
ord-248966a1a3bd4049bb5bd5ce9299791d
Source dataset
uspto-grants-1978_11
Patent number
US04127655

Reaction notes

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