Aniline → HCID 5328384, compound

HRID 1358284Notes

Reaction equation

HRID 1358284 reaction equation
Cl.Cl[C:3]1[C:4]2[NH:15][C:14]3[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=3[C:5]=2[N:6]=[CH:7][N:8]=1.[NH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1>C(O)C>[NH:16]([C:3]1[C:4]2[NH:15][C:14]3[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=3[C:5]=2[N:6]=[CH:7][N:8]=1)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1

Participants

4

Reactant 2

HCID 6115AnilineHCID 181843684-Chloro-5H-pyrimido[5,4-b]indole--hydrogen chloride (1/1)

Product 1

HCID 5328384HCID 5328384, compoundYield 105.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

A solution of 4-chloroindolo[3,2-d]pyrimidinehydrochloride (240 mg, 1.0 mmol) [Monge, A.; Palop, J. A.; Goni, T.; Martinez-Crespo, F.; Recalde, I. J. Het. Chem., 1986, 23, 647-9.], and aniline (0.273 mL, 3 mmol) in ethanol (1 mL) is heated at reflux for 3 h, during which time the reaction becomes a thick suspension. After cooling to 25 C. and diluting with ethanol (4 ml) the mixture is filtered, and the crude product washed with water (15 mL), and ethanol (15 mL), giving 274 mg tan solid, which is recrystallized from DMF/water affording pure 4-anilinoindolo[3,2-d]pyrimidine hydrochloride (82 mg, 27%). 1H NMR (DMSO): δ12.79 (1H, brs), 11.04 (1H, brs), 8:94 (1H, s), 8.27 (1H, d, J=8.2 Hz), 7.96 (2H, d, J=7.5 Hz), 7.85 (1H, d, J=8.4 Hz), 7.71 (1H, t, J=7.7 Hz), 7.49 (2H, t, J=8.0 Hz), 7.41 (1H, t, J=7.6 Hz), 7.24 (1H, t, J=7.4 Hz).

Workup

  1. temperatureat reflux for 3 h, during which time the reaction
  2. temperatureAfter cooling to 25 C
  3. filtrationis filtered
  4. washthe crude product washed with water (15 mL), and ethanol (15 mL)

Sources & evidence

ORD record
ord-7820a4ff1dee45cf951db9f4cf71ca1d
Source dataset
uspto-grants-2003_07
Patent number
US06596726B1

Reaction notes

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