| Identification | More | [Name]
2,6-Dimethyl-4H-pyran-4-one | [CAS]
1004-36-0 | [Synonyms]
2,6-DIMETHYL-4H-PYRAN-4-ONE
2,6-DIMETHYL-4-PYRONE
2,6-DIMETHYL-GAMMA-PYRONE
2,6-DIMETHYL-G-PYRONE
AURORA KA-6632
2,6-dimethyl-4h-pyran-4-on
2,6-Dimethyl-4-pyranone
2,6-Dimethyl-pyran-4-one
gamma-2,6-Dimethylpyrone
2,6-Dimethyl-4H-pyran-4-one~2,6-Dimethyl-gamma-pyrone
2,6-dimethyl- | [EINECS(EC#)]
213-719-1 | [Molecular Formula]
C7H8O2 | [MDL Number]
MFCD00006579 | [Molecular Weight]
124.14 | [MOL File]
1004-36-0.mol |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H302 | [Precautionary statements ]
P301+P312+P330 | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed. | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves . | [WGK Germany ]
3
| [RTECS ]
UQ0780000
| [HS Code ]
29329995 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Oral |
| Hazard Information | Back Directory | [Chemical Properties]
2,6-Dimethyl-4H-pyran-4-one is white to beige crystalline powder or crystals
| [Uses]
2,6-Dimethyl-4H-pyran-4-one is used as a fragrance ingredient.
| [Reactions]
2,6-dimethyl-4H-pyran-4-one reacts with Phosgene at room temperature could yield 2,6-bis(4′-chloro-2′,6′-dimethylphenyl)-4H-pyran-4-one, and 2-(4′-chloro-2′,6′-dimethylphenyl)-6-methyl-4H-pyran-4-one[1].
 | [Synthesis Reference(s)]
Journal of the American Chemical Society, 73, p. 300, 1951 DOI: 10.1021/ja01145a098 | [Synthesis]
Step 1: (DADC) 2 mg of the complex (1 equiv) was dissolved in dry pyridine (20% solution) and cooled in an external ice/water bath under N2. The corresponding acid chloride 3 (4.4 equiv) was added at 0-5 °C and stirred at room temperature for 1-2 days. | [References]
[1] Belsky, I. “The reaction of phosgene with 2,6-dimethyl-4H-pyran-4-one.” Tetrahedron 28 4 (1972): Pages 1001-1008.
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