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2-Methoxyphenylboronic acid → HCID 59831877, compound

HRID 268777
Notes
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Reaction equation

HRID 268777 reaction equation
[CH3:1][O:2][C:3](=[O:15])[CH:4]=[CH:5][C:6]1[CH:14]=[C:13]2[C:9]([CH:10]=[CH:11][NH:12]2)=[CH:8][CH:7]=1.[CH3:16][O:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1B(O)O>O.O1CCOCC1>[CH3:1][O:2][C:3](=[O:15])[CH2:4][CH:5]([C:6]1[CH:14]=[C:13]2[C:9]([CH:10]=[CH:11][NH:12]2)=[CH:8][CH:7]=1)[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][C:18]=1[O:17][CH3:16]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 27339582-Methoxyphenylboronic acidHCID 54059723HCID 54059723, compound

Product 1

HCID 59831877HCID 59831877, compoundYield 20%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 3-(1H-indol-6-yl)-acrylic acid methyl ester XXX (1.0 g, 5.0 mmol), 2-methoxyphenyl boronic acid (1.1 g, 7.2 mmol), [RhCl(cod)]2 (110 mg, 0.25 mmol) and TEA (5 mmol) in H2O (14 ml) and 1,4-dioxane (1 ml) was stirred at 90° C. in a sealed vial for 6 hours. The reaction mixture was cooled to room temperature and extracted with EtOAc. The combined organic layers were dried over MgSO4, filtered, concentrated, and purified via flash chromatography (hexane/acetone) to provide 3-(1H-indol-6-yl)-3-(2-methoxy-phenyl)-propionic acid methyl ester XXXVII (300 mg, 20% yield) as a yellow film.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionextracted with EtOAc
  3. dry with materialThe combined organic layers were dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. custompurified via flash chromatography (hexane/acetone)

Sources & evidence

ORD record
ord-da1c14e263434ba088275b93d415b233
Source dataset
uspto-grants-2008_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07446118B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes