5097. β-Irone

Nomenclature

CAS number: 79-70-9
4-(2,5,6,6-Tetramethyl-1-cyclohexen-1-yl)-3-buten-2-one.
C14H22O; mol wt 206.32.
C 81.50%, H 10.75%, O 7.75%.

Description and references

Frequent byproduct in synthesis of α-irone. Stereoselective synthesis of (±)-form: S. Torii et al., J. Org. Chem. 45, 16 (1980). For general refs see α-irone.

Chemical structure

Properties

Oil with odor similar to that of β-ionone. bp0.1 85-90°; bp0.7 99-104°; bp11 125°. [α]D20 +59° (CH2Cl2). d421 0.9434; nD21 1.5178; nD25 1.5162. uv max: 295 nm (log ε 4.05).