4-Chlorophenylboronic acid → HCID 18394366, compound

HRID 1600953Notes

Reaction equation

HRID 1600953 reaction equation
Br[C:2]1[CH:19]=[CH:18][C:5]([O:6][CH2:7][C@H:8]([OH:17])[CH2:9][CH2:10][C:11]2[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=2)=[CH:4][CH:3]=1.[Cl:20][C:21]1[CH:26]=[CH:25][C:24](B(O)O)=[CH:23][CH:22]=1>C1(C)C=CC=CC=1.C(=O)([O-])[O-].[Na+].[Na+].C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:20][C:21]1[CH:26]=[CH:25][C:24]([C:2]2[CH:19]=[CH:18][C:5]([O:6][CH2:7][C@H:8]([OH:17])[CH2:9][CH2:10][C:11]3[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=3)=[CH:4][CH:3]=2)=[CH:23][CH:22]=1

Participants

7

Reactant 2

HCID 742994-Chlorophenylboronic acidHCID 53756856(2R)-1-(4-bromophenoxy)-4-(3-pyridyl)-2-butanol

Product 1

HCID 18394366HCID 18394366, compoundYield 37.9%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 1140TolueneSolventHCID 10340Sodium CarbonateSolvent

Procedure

Prepared according to the method described in Example 65 from (2R)-1-(4-bromophenoxy)-4-(3-pyridyl)-2-butanol (0.25 g), 4-chlorobenzeneboronic acid (0.180 g) and tetrakis(triphenylphosphine)palladium(0) (40 mg) in toluene (5 ml), aqueous sodium carbonate (2 M, 1 ml) and ethanol (1 ml) with heating at reflux for 4 hours. The residue obtained after work up was purified by column chromatography over silica eluting with ethyl acetate to give the title compound as a white solid (0.104 g).

Workup

  1. customPrepared
  2. temperaturewith heating
  3. temperatureat reflux for 4 hours
  4. customThe residue obtained after work
  5. customup was purified by column chromatography over silica eluting with ethyl acetate

Sources & evidence

ORD record
ord-df5bab580bdf4e6da84f084c72338f92
Source dataset
uspto-grants-1999_11
Patent number
US05977105

Reaction notes

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