Boronic acid, (4-ethylphenyl)- → HCID 86718119, compound

HRID 2205131Notes

Reaction equation

HRID 2205131 reaction equation
Br[C:2]1[C:3]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][C:8]([C:12]([O:14]C)=[O:13])=[CH:7][CH:6]=2.[CH2:22]([C:24]1[CH:29]=[CH:28][C:27](B(O)O)=[CH:26][CH:25]=1)[CH3:23]>>[CH2:22]([C:24]1[CH:29]=[CH:28][C:27]([C:2]2[C:3]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:4][C:5]3[C:10]([N:11]=2)=[CH:9][C:8]([C:12]([OH:14])=[O:13])=[CH:7][CH:6]=3)=[CH:26][CH:25]=1)[CH3:23]

Participants

3

Reactant 2

HCID 2734352Boronic acid, (4-ethylphenyl)-HCID 86667202Methyl 3-bromo-2-phenylquinoxaline-6-carboxylate

Product 1

HCID 86718119HCID 86718119, compoundYield 50.6%

Procedure

The product was obtained via a Suzuki coupling reaction using the method previously shown in Example 20, Step 3, using methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (100 mg, 0.29 mmol, 1.00 equiv) and 4-ethylphenylboronic acid (62.3 mg, 0.42 mmol, 1.50 equiv) as reactants. Purification via silica gel column (dichloromethane/methanol (5:1)) yielded 52 mg (49%) of 3-(4-ethylphenyl)-2-phenylquinoxaline-6-carboxylic acid as a white solid.

Workup

  1. customThe product was obtained via a Suzuki coupling reaction
  2. customPurification via silica gel column (dichloromethane/methanol (5:1))

Sources & evidence

ORD record
ord-2fce7d9bae804d9d8585ff5a3dc37939
Source dataset
uspto-grants-2016_06
Patent number
US09370522B2

Reaction notes

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