Triethylamine → N-[4-(4-Morpholinyl)butyl]-7,8-dihydro-6H-indeno[5,6-e][1,2,4]triazin-3-amine 1-Oxide

HRID 1669053

Reaction equation

HRID 1669053 reaction equation
[N:1]1([CH2:7][CH2:8][CH2:9][CH2:10][NH2:11])[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.Cl[C:13]1[N:14]=[N+:15]([O-:26])[C:16]2[CH:25]=[C:24]3[C:20]([CH2:21][CH2:22][CH2:23]3)=[CH:19][C:17]=2[N:18]=1.CCN(CC)CC>COCCOC>[N:1]1([CH2:7][CH2:8][CH2:9][CH2:10][NH:11][C:13]2[N:14]=[N+:15]([O-:26])[C:16]3[CH:25]=[C:24]4[C:20]([CH2:21][CH2:22][CH2:23]4)=[CH:19][C:17]=3[N:18]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 2336114-(Morpholin-4-yl)butan-1-amineHCID 160813203-Chloro-7,8-dihydro-6H-indeno[5,6-e][1,2,4]triazine 1-Oxide

Product 1

HCID 11951638N-[4-(4-Morpholinyl)butyl]-7,8-dihydro-6H-indeno[5,6-e][1,2,4]triazin-3-amine 1-OxideYield 88%

Reagents, catalysts & solvents 1

HCID 80711,2-DimethoxyethaneSolvent

Procedure

4-(4-Morpholinyl)butylamine (306) (2.02 g, 12.8 mmol) was added to a stirred solution of chloride 21 (1.89 g, 8.5 mmol) and Et3N (1.8 mL, 12.8 mmol) in DME (80 mL) and the solution stirred at reflux temperature for 16 h. The solvent was evaporated and the residue was partitioned between DCM (100 mL) and dilute aqueous NH3 solution (50 mL). The organic fraction was dried and the solvent evaporated. The residue was purified by chromatography, eluting with a gradient (0-10%) of MeOH/DCM, to give 1-oxide 62 (2.57 g, 88%) as pale yellow solid: mp (MeOH/EtOAc) 151-152° C.; 1H NMR δ 8.07 (s, 1H, H-9), 7.38 (s, 1H, H-5), 5.78 (br s, 1H, NH), 3.78 (br t, J=4.6 Hz, 4H, 2×CH2O), 3.50 (br dd, J=6.6, 5.9 Hz, 2H, CH2N), 2.95-3.02 (m, 4H, H-6, H-8), 2.45 (br t, J=4.4 Hz, 4H, 2×CH2N), 2.40 (t, J=7.0 Hz, 2H, CH2N), 2.15 (p, J=7.5 Hz, 2H, H-7), 1.67-1.74 (m, 2H, CH2), 1.58-1.64 (m, 2H, CH2); 13C NMR δ 158.8, 154.5, 148.8, 143.2, 129.8, 120.5, 114.7, 66.9 (2), 58.5, 53.7 (2), 41.3, 33.1, 32.3, 27.4, 25.7, 24.0. Anal. Calcd for C18H25N5O2: C, 63.0; H, 7.3; N, 20.4. Found: C, 62.9; H, 7.2; N, 20.5%.

Workup

  1. temperatureat reflux temperature for 16 h
  2. customThe solvent was evaporated
  3. customthe residue was partitioned between DCM (100 mL) and dilute aqueous NH3 solution (50 mL)
  4. customThe organic fraction was dried
  5. customthe solvent evaporated
  6. customThe residue was purified by chromatography
  7. washeluting with a gradient (0-10%) of MeOH/DCM

Sources & evidence

ORD record
ord-c522c7aa0dea4528920f6c4468c0273e
Source dataset
uspto-grants-2011_08
Patent number
US07989451B2

Linked notes

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