A ruthenium trichloride complex has been loaded into an aluminiummetal–organicframework (MOF), MOF‐253, by post‐synthetic modification to give MOF‐253‐Ru. MOF‐253 contains open bipyridine sites that are available to bind with the rutheniumcomplex. MOF‐253‐Ru was characterised by elemental analysis, N2 sorption and X‐ray powder diffraction. This is the first time that a Ru complex has been coordinated
Untersuchungen zur Darstellung von Desoxyzucker-Steroidglycosiden
作者:Joachim Thiem、Sabine Köpper、Jens Schwentner
DOI:10.1002/jlac.198519851105
日期:1985.11.12
Glycosylierung von Triacetyldigitoxose 21 mit Digitoxigenin führt bei Ausbeuten von maximal 50% zu den α- und β-Anomeren 10 und 25 im Verhältnis ca. 2:3. Höhere Temperaturen steigern den relativen Anteil an β-Komponente bei stark fallenden Ausbeuten. Die Glycosylierung von Acetobromdigitoxose 22 mit unterschiedlichen Silbersalzen ergibt ebenfalls bei Ausbeuten von ca. 50% Anomerenverhältnis von α:β = 2:3
Facile Oxidation of Alcohols to Aldehydes or Ketones with 1-Acetoxy-5-nitro-1,2-benziodoxole-3(1H)-one
作者:Hideo Togo、Masataka Iinuma、Katsuhiko Moriyama
DOI:10.1055/s-0033-1339283
日期:——
benzylic alcohols and aliphatic secondary alcohols were smoothly oxidized to the corresponding aromatic aldehydes, aromatic ketones, and aliphatic ketones, respectively, with the novel 1-acetoxy-5-nitro-1,2-benziodoxole-3(1H)-one (ANBX) alone, a trivalent iodine prepared from the oxidation of 2-iodo-5-nitrobenzoic acid with MCPBA. The present reaction is the first effective method for the oxidation of
Phosphine Effects in the Copper(I) Hydride-Catalyzed Hydrogenation of Ketones and Regioselective 1,2-Reduction of α,β-Unsaturated Ketones and Aldehydes. Hydrogenation of Decalin and Steroidal Ketones and Enones
作者:Jian-Xin Chen、John F. Daeuble、Jeffrey M. Stryker
DOI:10.1016/s0040-4020(00)00133-2
日期:2000.4
The stereoselectivity and regioselectivity of the catalytic hydrogenation of ketones and α,β-unsaturated ketones and aldehydes using soluble copper(I) hydride catalysts have been investigated as a function of the ancillary phosphine ligand. While a relatively narrow range of aryldialkylphosphine ligands produce active hydrogenation catalysts, some ligands provide higher selectivity for 1,2-reduction
Swern Oxidation of Alcohols with Ion-Supported Methyl Sulfoxide and Oxalyl Chloride
作者:Hideo Togo、Daisuke Tsuchiya、Katsuhiko Moriyama
DOI:10.1055/s-0031-1289552
日期:2011.11
The oxidation of primary and secondary alcohols with ion-supported methyl sulfoxide and oxalyl chloride in the presence of triethylamine in dichloromethane efficiently proceeded to give the corresponding aldehydes and ketones, respectively, in good yields with high purity. Isolation of the product was achieved very easily by simple diethyl ether extraction of the reaction mixture and subsequent removal