Potassium Phosphate, Tribasic → HCID 58268026, compound

HRID 244707Notes

Reaction equation

HRID 244707 reaction equation
[C:1]1([S:7]([N:10]2[C:18]3[CH:17]=[C:16](B4OC(C)(C)CC(C)(C)O4)[CH:15]=[C:14]([NH2:29])[C:13]=3[CH:12]=[N:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[C:31]1[CH:32]=[C:33]2[CH:39]=[N:38][N:37]([S:40]([C:43]3[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=3)(=[O:42])=[O:41])[C:34]2=[N:35][CH:36]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[C:1]1([S:7]([N:10]2[C:18]3[CH:17]=[C:16]([C:31]4[CH:32]=[C:33]5[CH:39]=[N:38][N:37]([S:40]([C:43]6[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=6)(=[O:41])=[O:42])[C:34]5=[N:35][CH:36]=4)[CH:15]=[C:14]([NH2:29])[C:13]=3[CH:12]=[N:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 583564165-bromo-1-(phenylsulfonyl)-1H-pyrazolo[3,4-b]pyridineHCID 670292681-(Phenylsulfonyl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-1H-indazol-4-amine

Product 1

HCID 58268026HCID 58268026, compoundYield 30.2%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolvent2×HCID 312751,4-DioxaneSolvent2×

Conditions

Temperature
100 °C

Procedure

1-(Phenylsulfonyl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-1H-indazol-4-amine (1.5 g, 3.63 mmol), 5-bromo-1-(phenylsulfonyl)-1H-pyrazolo[3,4-b]pyridine (1.350 g, 3.99 mmol), Pd(dppf)Cl2 (0.531 g, 0.726 mmol) and tripotassium phosphate (2.311 g, 10.89 mmol) were divided between 2 microwave vials and dissolved in 1,4-Dioxane (18 mL) and Water (6 mL); 9 ml dioxane and 3 ml water in each. Each vial was heated to 100° C. for 10 min in the microwave. Solvent was removed in vacuo and the residue was partitioned between DCM (100 ml) and water (100 ml). The organic layer was collected using a hydrophobic frit and the solvent was removed in vacuo. The residue was taken up in DCM (4 ml) and added to the top of 2×70 g silica SPE cartridges. These were subsequently eluted with 0-100% EtOAc/DCM over 40 mins. The product-containing fractions were combined to give the title compound as a pale yellow solid (581 mg).

Workup

  1. customSolvent was removed in vacuo
  2. customthe residue was partitioned between DCM (100 ml) and water (100 ml)
  3. customThe organic layer was collected
  4. customthe solvent was removed in vacuo
  5. additionadded to the top of 2×70 g silica SPE cartridges
  6. washThese were subsequently eluted with 0-100% EtOAc/DCM over 40 mins

Sources & evidence

ORD record
ord-8f347ca9bab246fdaa86f144aeff3e9a
Source dataset
uspto-grants-2014_02
Patent number
US08658635B2

Reaction notes

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