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51677-09-9

51677-09-9 Structure

51677-09-9 Structure
IdentificationBack Directory
[Name]

5-PHENYL-ISOXAZOLE-3-CARBOXYLIC ACID METHYL ESTER
[CAS]

51677-09-9
[Synonyms]

AKOS B024670
AKOS BBS-00002559
ART-CHEM-BB B024670
TIMTEC-BB SBB009684
5-phenylisoxazole-3-carboxylate
3-(Methoxycarbonyl)-5-phenylisoxazole
METHYL 5-PHENYLISOXAZOLE-3-CARBOXYLATE
METHYL 5-PHENYL-3-ISOXAZOLECARBOXYLATE
Methyl 5-phenyl-1,2-oxazole-3-carboxylate
5-Phenyl-3-isoxazolecarboxylic acid methyl ester
5-PHENYL-ISOXAZOLE-3-CARBOXYLIC ACID METHYL ESTER
3-Isoxazolecarboxylic acid, 5-phenyl-, Methyl ester
JR-7047, Methyl 5-phenylisoxazole-3-carboxylate, 97%
[Molecular Formula]

C11H9NO3
[MDL Number]

MFCD02159553
[MOL File]

51677-09-9.mol
[Molecular Weight]

203.19
Chemical PropertiesBack Directory
[Melting point ]

81°C
[Boiling point ]

370.2±30.0 °C(Predicted)
[density ]

1.204±0.06 g/cm3(Predicted)
[storage temp. ]

2-8°C
[form ]

solid
[pka]

-6.43±0.28(Predicted)
[Appearance]

White to off-white Solid
[InChIKey]

XMPLCJOQBDGMKT-UHFFFAOYSA-N
Safety DataBack Directory
[Hazard Codes ]

Xi
[HazardClass ]

IRRITANT
[HS Code ]

2934999090
Hazard InformationBack Directory
[Uses]

Methyl 5-Phenylisoxazole-3-carboxylate is a useful reagent for reactions with isoxazoles.
[Synthesis]

3-Butynoic acid, 4-phenyl-2-[(phenylmethoxy)imino]-, methyl ester, (2E)-

1313396-20-1

5-PHENYL-ISOXAZOLE-3-CARBOXYLIC ACID METHYL ESTER

51677-09-9

GENERAL METHODS: Alkyne oxime ether 1 (0.15 mmol) was dissolved in THF (5 mL) and phenol (28 mg, 0.3 mmol) and AgBF4 (5.8 mg, 0.03 mmol) were added sequentially. The reaction system was equipped with a drying tube (filled with silica gel) and heated to reflux at 50 °C in an oil bath. The reaction process was monitored by TLC with continuous stirring for 1-12 hours. After completion of the reaction, the reaction mixture was concentrated under reduced pressure. The residue was purified by preparative thin layer chromatography (unfolding reagent: hexane/ethyl acetate = 3-10:1) to afford the target product methyl 5-phenylisoxazole-3-carboxylate (3a and 3j). The physical properties and spectral data of the obtained compounds were in agreement with those reported in the literature.

[References]

[1] Tetrahedron, 2011, vol. 67, # 25, p. 4612 - 4615
Spectrum DetailBack Directory
[Spectrum Detail]

5-PHENYL-ISOXAZOLE-3-CARBOXYLIC ACID METHYL ESTER(51677-09-9)1HNMR
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