Supported Ruthenium and Tetrapropylammonium Bromide Catalysts for Oxidative Carboxylation of 1-Decene

Oxidative Carboxylation of 1-Decene to 1,2-Decylene Carbonate

Cyclic carbonates are valuable chemicals for the chemical industry and thus, their efficient synthesis is essential. Commonly, cyclic carbonates are synthesised in a two-step process involving the epoxidation of an alkene and a subsequent carboxylation to the cyclic carbonate. To couple both steps into a direct oxidative carboxylation reaction would be desired from an economical view point sinc...

Mild synthesis of Mesoporous silica supported ruthenium nanoparticles as heterogeneous catalysts in oxidative Wittig coupling reactions

Molecular Motion in Solid Tetrapropylammonium Bromide and Iodide

The proton N M R second moment and spin-lattice relaxation time for tetrapropylammonium bromide and iodide have been measured over a wide temperature range. A solid-solid phase transition related to the onset of cation tumbling was found for both salts and confirmed by DTA. In the low temperature phases methyl group reorientation was evidenced. For iodide a dynamic nonequivalence of the methyl ...

Role of ceria in oxidative dehydrogenation on supported vanadia catalysts.

The effect of the suppport on oxidative dehydrogenation activity for vanadia/ceria systems is examined for the oxidation of methanol to formaldehyde by use of well-defined VO(x)/CeO(2)(111) model catalysts. Temperature-programmed desorption at low vanadia loadings revealed reactivity at much lower temperature (370 K) as compared to pure ceria and vanadia on inert supports such as silica. Densit...

Hydration and hydroamination of 1-alkynes with ruthenium catalysts

Makoto Tokunaga,∗1,∗2 Toshiaki Suzuki,∗1 Nobuaki Koga,∗3 Tomoaki Fukushima,∗4 Akira Horiuchi,∗4 Markus Eckert,∗1 Mitsuru Ota,∗5 Masa-aki Haga,∗5 Tomoko Honda,∗2 and Yasuo Wakatsuki∗1 ∗1Organometallic Chemistry Laboratory, RIKEN ∗2PRESTO, Japan Science and Technology Corporation (JST) ∗3Graduate School of Human Informatics, Nagoya University ∗4Department of Chemistry, Rikkyo University ∗5Departm...