title: The first topologically controlled synthesis of doubly bridged beta-cyclodextrin dimers.
abstract: Reaction 6(A),6(B)-di(O-tosyl)-beta-cyclodextrin with Na(2)S in DMF gave the cis-dimer of beta-cyclodextrin in 21% isolated yield while the trans-dimer was not detected.
authors.affiliation: Department of Molecular Medicinal Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Bunkyo-machi 1-14, Nagasaki, 852-8521, Japan. deqiyuan@nagasaki-u.ac.jp
authors.forename: De-Qi
authors.initials: DQ
authors.lastname: Yuan
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Koga
authors.forename: Isao
authors.initials: I
authors.lastname: Kouno
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Fujioka
authors.forename: Makoto
authors.initials: M
authors.lastname: Fukudome
authors.forename: Kahee
authors.initials: K
authors.lastname: Fujita
mesh_terms: D018360:Crystallography, X-Ray; D007202:Indicators and Reagents; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013440:Sulfides; D047392:beta-Cyclodextrins / Q000138:chemical synthesis*
chemical_list: D007202:Indicators and Reagents; D013440:Sulfides; D047392:beta-Cyclodextrins; C033479:sodium sulfide