Potassium Phosphate, Tribasic → HCID 22479921, compound

HRID 2183225Notes

Reaction equation

HRID 2183225 reaction equation
Br[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([C:11]#[N:12])[CH:9]=2)[N:4]([CH:13]2[CH2:18][CH2:17][CH2:16][CH2:15][O:14]2)[N:3]=1.[OH:19][C:20]1[CH:21]=[C:22](B(O)O)[CH:23]=[CH:24][CH:25]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C(COC)OC.ClCCl.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]>[OH:19][C:20]1[CH:25]=[C:24]([C:2]2[C:10]3[C:5](=[CH:6][CH:7]=[C:8]([C:11]#[N:12])[CH:9]=3)[N:4]([CH:13]3[CH2:18][CH2:17][CH2:16][CH2:15][O:14]3)[N:3]=2)[CH:23]=[CH:22][CH:21]=1

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 2734359(3-hydroxyphenyl)boronic AcidHCID 224799453-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-5-carbonitrile

Product 1

HCID 22479921HCID 22479921, compoundYield 85.1%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 6344DichloromethaneSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

To a stirred solution of 3-bromo-1-perhydro-2H-pyran-2-yl-1H-indazole-5-carbonitrile (1.47 g, 4.82 mmol) in dimethoxyethane (24.0 mL) was added 3-hydroxyphenylboronic acid (1.60 g, 7.27 mmol), dichloro[1,1′-bis(diphenylphosphino) ferrocene]palladium (0.396 g, 0.485 mmol), and potassium phosphate (5.12 g, 24.1 mmol) and the mixture was heated at reflux for 48 h. The mixture was diluted with dichloromethane. The organic extracts were washed with saturated sodium bicarbonate, dried over anhydrous sodium sulfate, filtered and evaporated. Purification of the residue by column chromatography with 20-50% ethyl acetate/hexanes furnished the product (1.31 g, 85% yield). ES-MS (m/z) 320 [M+1]+.

Workup

  1. temperaturethe mixture was heated
  2. temperatureat reflux for 48 h
  3. washThe organic extracts were washed with saturated sodium bicarbonate
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customPurification of the residue by column chromatography with 20-50% ethyl acetate/hexanes

Sources & evidence

ORD record
ord-99b525147a034a64a7c624ccefe362d6
Source dataset
uspto-grants-2005_05
Patent number
US06897231B2

Reaction notes

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