Title: Ylangene
CAS Registry Number: 14912-44-8
CAS Name: 1,3-Dimethyl-8-(1-methylethyl)tricyclo[4.4.0.02,7]dec-3-ene
Additional Names: (1S,2R,6R,7R,8S)-(+)-8-isopropyl-1,3-dimethyltricyclo[4.4.0.02,7]dec-3-ene; a-ylangene
Molecular Formula: C15H24
Molecular Weight: 204.35
Percent Composition: C 88.16%, H 11.84%
Literature References: From ylang-ylang oil: Heraut, Dimitrov, Chem. Listy 46, 432 (1952); from oil of birch buds: Holub et al., Collect. Czech. Chem. Commun. 24, 3730 (1959); from oil of Juniperus oxycedrus Linn., Cupressaceae: Motl et al., ibid. 25, 1656 (1960). Structure: Motl et al., Chem. Ind. (London) 1963, 1759; Hunter, Brogden, J. Org. Chem. 29, 982 (1964); Motl et al., Tetrahedron Lett. 1965, 451. Stereoisomer of copaene, q.v. Total synthesis of (±)-form: Heathcock et al., J. Am. Chem. Soc. 89, 4133 (1967); Corey, Watt, ibid. 95, 2303 (1973).
Properties: Oil. d420 0.9091. nD20 1.4934. [a]D20 +15.4°.
Optical Rotation: [a]D20 +15.4°
Index of refraction: nD20 1.4934
Density: d420 0.9091 |