Stannous Chloride → 2-Trifluoromethyl-5H-dibenzo[b,e][1,4]diazepin-11-ylamine hydrochloride

HRID 1350531Notes

Reaction equation

HRID 1350531 reaction equation
[Sn](Cl)[Cl:2].[N+:4]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[NH:13][C:14]1[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][C:15]=1[C:16]#[N:17])([O-])=O>Cl.C(O)C>[ClH:2].[F:23][C:22]([F:25])([F:24])[C:19]1[CH:20]=[CH:21][C:14]2[NH:13][C:8]3[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=3[N:4]=[C:16]([NH2:17])[C:15]=2[CH:18]=1

Participants

5

Reactant 2

HCID 24479Stannous ChlorideHCID 210934552-(2-Nitro-phenylamino)-5-trifluoromethyl-benzonitrile

Product 1

HCID 210935172-Trifluoromethyl-5H-dibenzo[b,e][1,4]diazepin-11-ylamine hydrochlorideYield 90%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 702EthanolSolvent

Procedure

Add a solution of tin(II) chloride (567 mg, 3 mmol) in 12 N hydrochloric acid (1.8 mL) to a solution of 2-(2-nitro-phenylamino)-5-trifluoromethyl-benzonitrile (307 mg, 1 mmol) in ethanol (10 mL). Reflux for 24 hours, then concentrate under vacuum, add water and filter. Wash the resulting solid with water and dichloromethane then dry under vaccum to yield the titled compound as a yellow solid (282 mg, 90%): mp 334–336° C.; 1H NMR (DMSO-d6) δ 7.05–7.19 (m, 4H), 7.34 (d, 1H), 7.86 (dd, 1H), 7.87 (s, 1H), 8.79 (s, 1H), 9.26 (s, 1H), 9.75 (s, 1H), 12.40 (s, 1H). MS (ESI/neg) m/z (rel intensity) 276.1 (100).

Workup

  1. temperatureReflux for 24 hours
  2. concentrationconcentrate under vacuum
  3. additionadd water
  4. filtrationfilter
  5. washWash the resulting solid with water and dichloromethane
  6. customthen dry under vaccum

Sources & evidence

ORD record
ord-f29372896b9a49f4b6e4a2b1cdafa4df
Source dataset
uspto-grants-2007_05
Patent number
US07214673B2

Reaction notes

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