Masakuni Yoshihara

Magnesium oxide-catalysed reaction of carbon dioxide with anepoxide with retention of stereochemistry

Magnesium oxide is an efficient catalyst for the cycloaddition of ncarbon dioxide to epoxides under mild conditions; the reaction of carbon ndioxide with (R)-styrene oxide in the presence of magnesium oxide ngives (R)-phenyl carbonate in 97% ee with retention of nstereochemistry.

Heterosupramolecular photocatalysis: oxidation of organic compounds in nanospaces between surfactant bilayers formed on TiO2Electronic supplementary information available: further characterization data and experimental details. See http://www.rsc.org/suppdata/cc/b2/b204593a/

A heterosupramolecular photocatalyst consisting of TiO2 and a cationic surfactant bilayer formed on the surface has achieved a very high level of activity in the oxidation of 2-naphthol through the cooperation of the inorganic and organic components.

The thermal- and photo-reactions of a diphenylphosphinite ester with 10-methylacridinium iodide. Discrimination between polar and single electron transfer processes.

Abstract The thermal-reaction of isopropyl diphenylphosphinite with 10-methylacridinuim iodide results in the formation of a phosphonium ion through a polar process, whereas the reaction under the irradation of light affords 10-methylacridan as well as isopropyl diphenylphosphinate through single electron transfer (SET) from the former to the latter.

Alkane-tetrathiol induced formation of remarkably stable self-assembled monolayer and polymer films containing electroactive tetrathiafulvalene moieties on metal electrodes

Remarkably stable self-assembled monolayer and polymer films composed of a new tetrathiafulvalenyl-tetrathiol have been formed on metal electrodes: this is a new class of surface modification by self-assembly and electrochemical polymerization using the same alkane-tetrathiol.

(ニオビウム-O-フェニレン-S)-(カドミウム-S-フェニレン-O)共重合体からなる焼成体の電子的挙動

The calcination of a (niobium-O-phenylene-S)- (cadmium-S- phenylene-O) hybrid copolymer under an argon atmosphere gave nano-sized Nb 2 O 5 / carbon clusters / CdS hybrid material. ESR spectral examinations suggest the possibility of an electron transfer in the process of Nb 2 O 5 → carbon clusters → CdS → carbon clusters.