title: Rotenone alpha-oxime.
abstract: The structure determination of the title compound, rotenone alpha-oxime [systematic name: 1,2,12,12a-tetrahydro-8,9-dimethoxy-2-(1-methylethenyl)-[1]benzopyrano[3,4-b]furo[2,3-h][1]benzopyran-6(6H)-one oxime], C(23)H(23)NO(6), confirms that the molecule has an approximately V-shaped structure. One of the rings has a typical cyclohexene-like monoplanar conformation and the central ring adopts a 1,2-diplanar conformation.
authors.affiliation: School of Chemistry, Shanghai Teacher's University, Shanghai 200234, People's Republic of China. shipingy@shtu.edu.cn
authors.forename: Shi-Ping
authors.initials: SP
authors.lastname: Yang
authors.forename: Xi-Bin
authors.initials: XB
authors.lastname: Yu
authors.forename: Ji-Guang
authors.initials: JG
authors.lastname: Huang
authors.forename: Han-Hong
authors.initials: HH
authors.lastname: Xu
mesh_terms: D018360:Crystallography, X-Ray; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D010091:Oximes / Q000737:chemistry*; D012402:Rotenone / Q000031:analogs & derivatives*
chemical_list: D010091:Oximes; D012402:Rotenone