Acetic Acid → 5-(4-Bromophenyl)-1,2-oxazole-4-carboxylic acid
Reaction equation
C([O:3][C:4]([C:6]1[CH:7]=[N:8][O:9][C:10]=1[C:11]1[CH:16]=[CH:15][C:14]([Br:17])=[CH:13][CH:12]=1)=[O:5])C.C(O)(=O)C.O>Cl>[Br:17][C:14]1[CH:13]=[CH:12][C:11]([C:10]2[O:9][N:8]=[CH:7][C:6]=2[C:4]([OH:5])=[O:3])=[CH:16][CH:15]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
5-(4-Bromo-phenyl)-isoxazole-4-carboxylic acid ethyl ester (0.500 g, 1.69 mmol) was dissolved in concentrated hydrochloric acid (2 mL), acetic acid (5 mL), and H2O (5 mL), and the reaction was stirred at 100° C. overnight. The mixture was partitioned between EtOAc and H2O, and the organic layer was separated, dried over MgSO4, filtered, and concentrated to give the title compound.
Workup
- customThe mixture was partitioned between EtOAc and H2O
- customthe organic layer was separated
- dry with materialdried over MgSO4
- filtrationfiltered
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-bae1155603924c8ea866c158fa084018
- Source dataset
- uspto-grants-2012_09
- Patent number
- US08273780B2
Reaction notes
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