Benzoxazole

Benzoxazole

Names
IUPAC name benzoxazole
Other names 1-Oxa-3-aza-1H-indene
Identifiers
CAS Registry Number	273-53-0 Y
ChEBI	CHEBI:38814 Y
ChEMBL	ChEMBL451894 Y
ChemSpider	8873 Y
InChI InChI=1S/C7H5NO/c1-2-4-7-6(3-1)8-5-9-7/h1-5H Y Key: BCMCBBGGLRIHSE-UHFFFAOYSA-N Y InChI=1/C7H5NO/c1-2-4-7-6(3-1)8-5-9-7/h1-5H Key: BCMCBBGGLRIHSE-UHFFFAOYAP
Jmol-3D images	Image
PubChem	9228
SMILES n1c2ccccc2oc1
Properties
Molecular formula	C7H5NO
Molar mass	119.12 g·mol−1
Appearance	white to light yellow solid
Melting point	27 °C (81 °F; 300 K)
Boiling point	182 °C (360 °F; 455 K)
Solubility in water	insol.
Hazards
Flash point	58 °C (136 °F; 331 K)
Related compounds
Related compounds	oxazole indole benzofuran
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Benzoxazole is an aromatic organic compound with a molecular formula C₇H₅NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine.^[1][2] Benzoxazole is used primarily in industry and research, and has no household use.

Being a heterocyclic compound, benzoxazole finds use in research as a starting material for the synthesis of larger, usually bioactive structures. It is found within the chemical structures of pharmaceutical drugs such as flunoxaprofen.

Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.

See also

• Benzisoxazole, an analog with the nitrogen atom in position 2.
• Benzimidazole, an analog with the oxygen replaced by a nitrogen.
• Benzothiazole, an analog with the oxygen replaced by a sulfur.
• Benzopyrrole or indole, an analog without the oxygen atom.
• Benzofuran, an analog without the nitrogen atom.
• Benzoxazoline, which has one double bond reduced.
• Benzoxazolidinedione, which has both double bonds reduced.
• Benzoxazolidine, which has both double bonds reduced.
• Benzoxazolidinone
• Simple aromatic rings

References