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3,5-Dimethylisoxazole_Molecular_structure_CAS_300-87-8)
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3,5-Dimethylisoxazole

Catalog No. A12217 Name Alfa Aesar
CAS Number 300-87-8 Website
M. F. C5H7NO Telephone
M. W. 97.11518 Fax
Purity 99% Email
Storage Chembase ID: 68710

SYNONYMS

Title
3,5-二甲基异恶唑
IUPAC name
3,5-dimethyl-1,2-oxazole
IUPAC Traditional name
isoxazole, 3,5-dimethyl-

DATABASE IDS

Beilstein Number 106324
EC Number 206-100-2
MDL Number MFCD00003156
CAS Number 300-87-8

PROPERTIES

Purity 99%
Boiling Point 142-144°C
Density 0.992
Flash Point 31°C(87°F)
Melting Point -14°C
Refractive Index 1.4415
GHS Pictograms GHS02
GHS Hazard statements H226
GHS Precautionary statements P210-P241-P280-P303+P361+P353-P403+P235-P501A
Risk Statements 10
RTECS NY2774200
Safety Statements 60
TSCA Listed
Hazard Class 3
UN Number UN1993
Packing Group III

DETAILS

REFERENCES

  • Lithiation occurs first at the 5-methyl group. Subsequent reaction with electrophiles can be followed by further lithiation of the 3-methyl, providing a route to substituted isoxazoles, and also to 1,3-diketones by acid hydrolysis or ?-aminoketones by hydrogenolysis: Tetrahedron Lett., 22, 3699 (1981):
  • Review: Reaction of 3,5-dimethylisoxazole with some electrophiles: Heterocycles, 6, 805 (1977).