ChemicalBook--->CAS DataBase List--->17449-48-8

17449-48-8

17449-48-8 Structure

17449-48-8 Structure
IdentificationBack Directory
[Name]

5-FLUOROISOPHTHALIC ACID DIMETHYL ESTER
[CAS]

17449-48-8
[Synonyms]

DIMETHYL 5-FLUOROISOPHTHALATE
5-FLUOROISOPHTHALIC ACID DIMETHYL ESTER
dimethyl 5-fluorobenzene-1,3-dicarboxylate
1,3-Benzenedicarboxylic acid, 5-fluoro-, 1,3-dimethyl ester
[Molecular Formula]

C10H9FO4
[MDL Number]

MFCD00230549
[MOL File]

17449-48-8.mol
[Molecular Weight]

212.17
Chemical PropertiesBack Directory
[Melting point ]

56.5-57 °C
[Boiling point ]

288.3±30.0 °C(Predicted)
[density ]

1.252±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[Appearance]

Off-white to light yellow Solid
Safety DataBack Directory
[Symbol(GHS) ]

Skull and Crossbones (GHS06)
GHS06
[Signal word ]

Danger
[Hazard statements ]

H319-H301
[Precautionary statements ]

P264-P270-P301+P310-P321-P330-P405-P501-P264-P280-P305+P351+P338-P337+P313P
Hazard InformationBack Directory
[Uses]

Dimethyl 5-Fluoroisophthalate is used as a reactant in the preparation of quinazoline compounds as B-Raf inhibitors.
[Synthesis]

Methanol

67-56-1

5-FLUOROPHTALIC ACID

1583-66-0

5-FLUOROISOPHTHALIC ACID DIMETHYL ESTER

17449-48-8

General procedure for the synthesis of dimethyl 5-fluoroisophthalate from methanol and 5-fluoroisophthalic acid: to a solution of 5-fluoroisophthalic acid (1.3 g, 7.1 mmol) in methanol (30 ml) was added concentrated sulfuric acid (0.25 ml). The reaction mixture was heated to reflux for 12 hours. After completion of the reaction, methanol was removed by distillation under reduced pressure. The residue was neutralized with saturated sodium bicarbonate solution and subsequently extracted with dichloromethane. The organic phase was washed with saturated sodium chloride solution, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to give dimethyl 5-fluoroisophthalate 1.25 g (83% yield) as a white solid. Nuclear magnetic resonance hydrogen spectroscopy (NMR) data: δ 8.42 (s, 1H), 7.88 (d, 2H), 3.90 (s, 6H).

[References]

[1] Patent: WO2007/71963, 2007, A2. Location in patent: Page/Page column 54
Spectrum DetailBack Directory
[Spectrum Detail]

5-FLUOROISOPHTHALIC ACID DIMETHYL ESTER(17449-48-8)1HNMR
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