title: Bicyclobutonium ions in biosynthesis--interconversion of cyclopropyl-containing sterols from orchids.
abstract: Theoretical investigation of cyclopropane-to-cyclopropane rearrangements of sterols indicates a role for highly delocalized bicyclobutonium ions in biosynthesis.
authors.affiliation: Department of Chemistry, University of California-Davis , 1 Shields Avenue, Davis, California 95616, United States.
authors.forename: Young J
authors.initials: YJ
authors.lastname: Hong
authors.forename: José-Luis
authors.initials: JL
authors.lastname: Giner
authors.forename: Dean J
authors.initials: DJ
authors.lastname: Tantillo
mesh_terms: D003503:Cyclobutanes / Q000737:chemistry*; D003521:Cyclopropanes / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D029595:Orchidaceae / Q000737:chemistry*; D013261:Sterols / Q000737:chemistry*
chemical_list: D003503:Cyclobutanes; D003521:Cyclopropanes; D013261:Sterols; C030797:cyclopropane