Annu Rev Microbiol. Yields from GC characterizations compared with commercial aldehyde sample using bromobenzene as the internal standard. 2005;127:10840. are formed. Angew Chem Int Ed. From the perspective of sustainability, the rational use of biomass-derived feedstocks for photocatalytic H2 prodn. of carboxylic acid precursors in the presence of a platinized titania catalyst yielded dimerization, addn., or cycloaddn. (c) Fu Y, Sanchez-Cano C, Soni R, Romero-Canelon I, Hearn JM, Liu Z, et al. https://doi.org/10.1016/j.jorganchem.2020.121453. In Situ Generated Cobalt Catalyst for the Dehydrogenative Coupling of Alcohols and Amines into Imines. were detected besides the aldehyde and the acid. Bioresour Technol. TiO2 samples (Sigma-Aldrich, Merck, Degussa P25) and rutile TiO2 prepd. on TiO2 could be dramatically accelerated without any loss of selectivity by simple adsorption of a Bronsted acid, and a twofold conversion was achieved when a small quantity of SiO2 was incorporated into TiO2-after the pretreatment with acid- to afford more Bronsted acid sites. Energy Fuels. These metrics are regularly updated to reflect usage leading up to the last few days. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. This finding points to a higher selectivity performance of the home-prepd. It is disclosed that a series of benzylic amines was selectively transformed into the corresponding imines using 1 atm of air as the oxidant by TiO2 photocatalysis in acetonitrile. This effect demonstrates that the para-meta paradigm no longer holds if appropriate substituents and substitution patterns are chosen, thereby considerably broadening the applicability of meta-topologies for optoelectronic applications. 2013;5:342. ChemSusChem. Li, Ning; Lang, Xianjun; Ma, Wanhong; Ji, Hongwei; Chen, Chuncheng; Zhao, Jincai. exhibited each chem. That is, which component or factor in this photocatalytic system plays the key role to pass photogenerated h, Given that there is a very significant difference of adsorption on the Pt–P25 surface between primary SCAs and LCAs, we propose a possible explanation for this anomalous trend of selectivity depending on C-chain length. QNJJ2017-02), the 973 project (no. of base (>20 mol% ) is usually required. TiO2 Photocatalyzed C–H Bond Transformation for C–C Coupling Reactions. Covalent Organic Frameworks: Promising Materials as Heterogeneous Catalysts for C-C Bond Formations. Yi Wang, Anan Liu, Dongge Ma, Shuhong Li, Chichong Lu, Tao Li, Chuncheng Chen. This work gave the way for highly selective photoredox catalysis via rational design based on mechanistic insight. Organometallics. During the past several years, powerful tools such as surface spectroscopic techniques and scanning probe techniques performed on single crystals in ultra-high vacuum, and ultrafast pulsed laser spectroscopic techniques have been brought to bear on these problems, and new insights have become possible. The apparent quantum yield of this system employing Pt/NaTaO3:La was estd. Preceding work on photoelectrochem. Ruthenium-Catalyzed α-Olefination of Nitriles Using Secondary Alcohols. . The Hammett relationship effectively describes the influence of substituent group on the kinetic const. of all classes of alcs., including primary and secondary allylic, benzylic, and aliph. Hydrogen Evolution from Aliphatic Alcohols and 1,4-Selective Hydrogenation of NAD Osmium and Ruthenium Catalysts for Dehydrogenation of Alcohols. of the relatively stable side- on peroxide promoted by the protons of Bronsted acids, which effectively clean the catalytic Ti-OH2 sites.

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