Water → N-Methyl-3-[3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-benzamide

HRID 1097303Notes

Reaction equation

HRID 1097303 reaction equation
Cl[C:2]1[CH:7]=[C:6]([C:8]2[N:12]3[N:13]=[CH:14][C:15]([C:17]4[CH:18]=[C:19]([CH:24]=[CH:25][CH:26]=4)[C:20]([NH:22][CH3:23])=[O:21])=[CH:16][C:11]3=[N:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1.[C:27]1(B(O)O)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.O.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:23][NH:22][C:20](=[O:21])[C:19]1[CH:24]=[CH:25][CH:26]=[C:17]([C:15]2[CH:14]=[N:13][N:12]3[C:8]([C:6]4[CH:5]=[CH:4][N:3]=[C:2]([C:27]5[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=5)[CH:7]=4)=[CH:9][N:10]=[C:11]3[CH:16]=2)[CH:18]=1

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 444734603-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-N-methyl-benzamide

Product 1

HCID 25176057N-Methyl-3-[3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-benzamide

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Procedure

3-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-N-methyl-benzamide (1 eq, 0.110 mmol, 40 mg) and phenyl boronic acid (1.2 eq, 0.132 mmol, 16.1 mg) are dissolved in DME (1.5 ml) and water (0.5 ml) and Na2CO3 (2 eq, 0.22 mmol, 27.3 mg) is added. PdCl2(PPh3)2 (0.1 eq, 0.011 mmol, 7.7 mg) is then added and the reaction mixture is heated using microwave radiation at 120° C. for 10 min. At the completion of this time the solvent is removed in vacuo and the reaction mixture is purified by flash column chromatography eluting with 9:1 DCM/MeOH to yield N-Methyl-3-[3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-benzamide as a yellow solid; [M+H]+=406

Workup

  1. temperaturethe reaction mixture is heated
  2. customat 120° C.
  3. customfor 10 min
  4. customAt the completion of this time the solvent is removed in vacuo
  5. customthe reaction mixture is purified by flash column chromatography
  6. washeluting with 9:1 DCM/MeOH

Sources & evidence

ORD record
ord-af7f8aa789f7427eb5f49890e6dccb30
Source dataset
uspto-grants-2012_03
Patent number
US08143253B2

Reaction notes

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