The reaction of 1,2-diols with dimethyl sulfoxide-catalytic molybdenum peroxide in refluxing toluene generally resulted in monoprotection of diols to give 2-methylthiomethoxy-l-ols (Course A) Exceptionally, a) cis-1,2-cyclooctanediol and benzopinacol, and b) 1,2-cyclododecanediol caused C–C bond cleavage (Course B) and monooxidation (Course C), respectively as Scheme 1.
[EN] METHODS FOR PREPARING FLUOROALKYL ARYLSULFINYL COMPOUNDS AND FLUORINATED COMPOUNDS THERETO<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS FLUOROALKYLE ARYLSULFINYLÉS ET COMPOSÉS FLUORÉS APPARENTÉS
申请人:IM & T RES INC
公开号:WO2010022001A1
公开(公告)日:2010-02-25
Novel preparative methods for fluoroalkyl arylsulfinyl compounds are disclosed. Fluorinated compounds as useful fluorinated compounds, intermediates, or builing blocks are disclosed. Useful applications of the fluoroalkyl arylsulfinyl compounds are shown.
Dendritic Phosphonates and thein situ Assembly of Polyperoxophosphotungstates: Synthesis and Catalytic Epoxidation of Alkenes with Hydrogen Peroxide
作者:Maxym?V. Vasylyev、Didier Astruc、Ronny Neumann
DOI:10.1002/adsc.200404207
日期:2005.1
four or sixteen peripheral phosphonate moieties, PD1 and PD2, respectively, were synthesized and characterized. Further reaction of the dendriticphosphonates with tungstic acid in the presence of hydrogenperoxide led to the stepwise in situ formation of mono- and dinuclear phosphoperoxotungstates. These assemblies were effective catalysts for the epoxidation of alkenes in an aqueous acetonitrile
Alkylhydroxyphenylalkanoic acid esters of mono- and polyhydric alicyclic alcohols, prepared by known esterification or transesterification procedures, are stabilizers of organic material subject to oxidative deterioration.
Oxidation of Alkenes by Oxodiperoxomolybdenum: Trialkyl(aryl)phosphine Oxide Complexes
作者:Leslie Jimenez、Christine Altinis Kiraz、Luis Mora
DOI:10.1055/s-2006-958933
日期:2007.1
Catalytic amounts of short-chain (2-4 carbons) trialkylphosphine oxide ligands and MoO5 have been shown to efficiently convert di- and higher substituted alkenes to the corresponding epoxides using a biphasic system with either 30% hydrogen peroxide or 70% TBHP acting as the stoichiometric oxidant.