title: Structure and absolute configuration of (E)-(-)-2-cyclododecenyl camphanate.
abstract: C22H34O4, Mr = 362.51, monoclinic, P2(1), a = 7.371 (1), b = 10.571 (1), c = 13.538 (2) A, beta = 90.36 (1) degree, V = 1054.84 A3, Z = 2, Dx = 1.141 Mg m-3, lambda(Cu K alpha) = 1.5418 A, mu = 0.577 mm-1, F(000) = 396, T = 296 K, R = 0.057 for 1550 unique reflections with I greater than or equal to sigma(I). The crystal conformation of the 12-membered ring in the title compound and its absolute configuration (1R) have been determined. The ring adopts a conformation with a necessarily approximate twofold axis in the crystal but it appears to be highly flexible.
authors.affiliation: Laboratory of Chemical Physics, NIDDK, Bethesda, MD 20892.
authors.forename: S
authors.initials: S
authors.lastname: Ito
authors.forename: H
authors.initials: H
authors.lastname: Ziffer
authors.forename: J V
authors.initials: JV
authors.lastname: Silverton
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003460:Crystallization; D008968:Molecular Conformation; D015394:Molecular Structure; D013729:Terpenes / Q000138:chemical synthesis; D014961:X-Ray Diffraction
chemical_list: D013729:Terpenes; C062773:2-cyclododecenyl camphanate