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Cesium carbonate → 2-(3-chlorobenzyl)-N-(2-chloropyrimidin-4-yl)-N,3-dimethyl-2H-indazol-6-amine

HRID 1640714
Notes
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Reaction equation

HRID 1640714 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([N:8]([CH3:19])[C:9]2[CH:17]=[C:16]3[C:12]([C:13]([CH3:18])=[N:14][NH:15]3)=[CH:11][CH:10]=2)[CH:5]=[CH:4][N:3]=1.C([O-])([O-])=O.[Cs+].[Cs+].[Cl:26][C:27]1[CH:28]=[C:29]([CH:32]=[CH:33][CH:34]=1)[CH2:30]Br>CN(C=O)C.C(OCC)(=O)C>[Cl:26][C:27]1[CH:28]=[C:29]([CH:32]=[CH:33][CH:34]=1)[CH2:30][N:14]1[C:13]([CH3:18])=[C:12]2[C:16]([CH:17]=[C:9]([N:8]([C:6]3[CH:5]=[CH:4][N:3]=[C:2]([Cl:1])[N:7]=3)[CH3:19])[CH:10]=[CH:11]2)=[N:15]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 698381-(Bromomethyl)-3-chlorobenzeneHCID 178434347HCID 178434347, compound

Product 1

HCID 219563352-(3-chlorobenzyl)-N-(2-chloropyrimidin-4-yl)-N,3-dimethyl-2H-indazol-6-amine

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolvent
HCID 8857
Ethyl Acetate
Solvent

Procedure

N-(2-chloropyrimidin-4-yl)-N,3-dimethyl-1H-indazol-6-amine (2 g, 7.31 mmol) was dissolved in DMF (15 ml), and Cs2CO3 (2 g, 14.6 mmol) and 3-chlorobenzyl bromide (1.25 ml, 9.5 mmol) were added at room temperature. Mixture was stirred at rt for overnight. The reaction mixture was diluted with ethyl acetate and washed with water. The organic layer was separated. The aqueous layer was thoroughly extracted with EtOAc. The combined organic layers were dried over anhydrous MgSO4, filtered and evaporated to give 2-(3-chlorobenzyl)-N-(2-chloropyrimidin-4-yl)-N,3-dimethyl-2H-indazol-6-amine as an off-white solid . 1H NMR (300 MHz, d6DMSO) δ 7.94 (d, J=6.0 Hz, 1H), 7.83 (d, J=8.8 Hz, 1H), 7.56 (d, J=1.3 Hz, 1H), 7.36-7.38 (m, 2H), 7.32 (br s, 1H), 7.16 (m, 1H), 6.91 (m, 1H), 6.28 (d, J=6.1 Hz, 1H), 5.65 (s, 2H), 3.42 (s, 3H), 2.63 (s, 3H). MS (ES+, m/z) 398 (M+H).

Workup

  1. washwashed with water
  2. customThe organic layer was separated
  3. extractionThe aqueous layer was thoroughly extracted with EtOAc
  4. dry with materialThe combined organic layers were dried over anhydrous MgSO4
  5. filtrationfiltered
  6. customevaporated

Sources & evidence

ORD record
ord-feb3a25f8d1847f1a361dc78fa74bd2e
Source dataset
uspto-grants-2012_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08114885B2

Reaction notes

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