Keigo Kamata

TL;DR: In this article, a review of recent developments for the epoxidation of olefins with hydrogen peroxide catalyzed by polyoxometalates is presented, which can be classified into two groups according to the structural and mechanistic aspects: (i) catalyst precursors of peroxotungstate or peroxomolybdate species and (ii) oxidatively and hydrolytically stable transition-metal-substituted polyoxmetalates.

TL;DR: The effectiveness of this catalyst is evidenced by ≥99% selectivity to epoxide, ≥ 99% efficiency of H2O2 utilization, high stereospecificity, and easy recovery of the catalyst from the homogeneous reaction mixture.

TL;DR: In this paper, the authors reevaluate the energy determination method used for AGASA events with respect to the lateral distribution of shower particles, their attenuation with zenith angle, shower front structure, delayed particles observed far from the core and other factors.

TL;DR: In this article, a review summarizes recent developments for homogeneous and heterogeneous liquid-phase oxidation of hydrocarbons with H 2 O 2 catalyzed by vanadium complexes and vanadium-based polyoxometalates.

TL;DR: The successful synthesis of high-surface-area β-MnO2 significantly improves the catalytic activity for the aerobic oxidation of HMF to FDCA and is in good agreement with the DFT calculation results.