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6-chloro-2-(5-nitropyridin-2-yl)-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine → 2-(5-aminopyridin-2-yl)-6-chloro-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine

HRID 2112613
Notes
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Reaction equation

HRID 2112613 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-])=O)=[CH:10][N:9]=2)[N:5]=[C:4]([NH:17][CH2:18][C:19]([F:22])([F:21])[F:20])[C:3]=1[C:23]1[C:28]([F:29])=[CH:27][C:26]([F:30])=[CH:25][C:24]=1[F:31]>CO.C(O)(=O)C.C(OCC)(=O)C.[Fe]>[NH2:14][C:11]1[CH:12]=[CH:13][C:8]([C:6]2[N:5]=[C:4]([NH:17][CH2:18][C:19]([F:22])([F:21])[F:20])[C:3]([C:23]3[C:28]([F:29])=[CH:27][C:26]([F:30])=[CH:25][C:24]=3[F:31])=[C:2]([Cl:1])[N:7]=2)=[N:9][CH:10]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 1

HCID 111787526-chloro-2-(5-nitropyridin-2-yl)-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine

Product 1

HCID 865974612-(5-aminopyridin-2-yl)-6-chloro-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amineYield 104.8%

Reagents, catalysts & solvents 4

HCID 23925IronCatalystHCID 176Acetic AcidSolvent
HCID 887
Methanol
Solvent
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 6-chloro-2-(5-nitropyridin-2-yl)-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine (101 mg, 0.22 mmol) and Iron powder (256 mg, 4.58 mmol) in 2 mL of methyl alcohol and 1 mL of acetic acid is heated at 100° C. for 1 h. The reaction mixture is cooled to room temperature and diluted with ethyl acetate. The organic layer is washed with saturated sodium bicarbonate and then with saturated sodium chloride, dried over magnesium sulfate, filtered, concentrated and dried under reduced pressure to yield 2-(5-aminopyridin-2-yl)-6-chloro-N-(2,2,2-trifluoroethyl)-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine as a light yellow oil (100 mg). MS: m/z 434.2 (M+H). This product is used in the next step with out further purification.

Workup

  1. temperatureThe reaction mixture is cooled to room temperature
  2. washThe organic layer is washed with saturated sodium bicarbonate
  3. dry with materialwith saturated sodium chloride, dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customdried under reduced pressure

Sources & evidence

ORD record
ord-f59a10faecf14a2f87f0ffae601de550
Source dataset
uspto-grants-2009_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07524849B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes