Potassium Phosphate, Tribasic → HCID 22479921, compound

HRID 1349725Notes

Reaction equation

HRID 1349725 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-404dd5d8784c46308f85402eeba2705a
Source dataset
uspto-grants-2007_05
Patent number
US07211594B2

Reaction notes

Loading…