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Bioinspired Manganese and Iron Complexes for Enantioselective Oxidation Reactions: Ligand Design, Catalytic Activity, and Beyond

Wei Sun,* Qiangsheng Sun Cite This:Acc. Chem. Res.2019 Publication Date:July 23, 2019 https://doi.org/10.1021/acs.accounts.9b00285 鉄、マンガン錯体を用いた不斉酸化触媒についてのレビューです。配位子の構造、基質の選び方、参考になりそうです。 うちでもよく使う、ピリジルアミン系配位子が出てきますが、メチレンリンカーへの嵩高い置換基が効果的なようです。 また、スピロ化合物(下図、右上)なんかも不斉酸化のターゲットになるんですね。

μ-Nitrido Diiron Macrocyclic Platform: Particular Structure for Particular Catalysis

Pavel Afanasiev *  and  Alexander B. Sorokin * Institut de Recherches sur la Catalyse et l’Environnement de Lyon IRCELYON, UMR 5256,  CNRS - Université Lyon 1 , 2 avenue A. Einstein, 69626 Villeurbanne cedex,  France Acc. Chem. Res. ,  2016 ,  49  (4), pp 583–593 DOI:  10.1021/acs.accounts.5b00458 Publication Date (Web): March 11, 2016 Copyright © 2016 American Chemical Society http://pubs.acs.org/doi/abs/10.1021/acs.accounts.5b00458 Abstract Conspectus The ultimate objective of bioinspired catalysis is the development of efficient and clean chemical processes. Cytochrome P450 and soluble methane monooxygenase enzymes efficiently catalyze many challenging reactions. Extensive research has been performed to mimic their exciting chemistry, aiming to create efficient chemical catalysts for functionalization of strong C–H bonds. Two current biomimetic approaches are based on (i) mononuclear metal porphyrin-like complexes and ...

Metal-Based Optical Probes for Live Cell Imaging of Nitroxyl (HNO)

Pablo Rivera-Fuentes and Stephen J. Lippard* Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States Acc. Chem. Res., 2015, 48 (11), pp 2927–2934 DOI: 10.1021/acs.accounts.5b00388 Publication Date (Web): November 9, 2015 Conspectus Nitroxyl (HNO) is a biological signaling agent that displays distinctive reactivity compared to nitric oxide (NO). As a consequence, these two reactive nitrogen species trigger different physiological responses. Selective detection of HNO over NO has been a challenge for chemists, and several fluorogenic molecular probes have been recently developed with that goal in mind. Common constructs take advantage of the HNO-induced reduction of Cu(II) to Cu(I). The sensing mechanism of such probes relies on the ability of the unpaired electron in a d orbital of the Cu(II) center to quench the fluorescence of a photoemissive ligand by either an electron or energy transfer mechanism. Experimental and t...

Tuning Reactivity and Selectivity in Hydrogen Atom Transfer from Aliphatic C–H Bonds to Alkoxyl Radicals: Role of Structural and Medium Effects

Michela Salamone and Massimo Bietti* Dipartimento di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, Italy Acc. Chem. Res., Article ASAP DOI: 10.1021/acs.accounts.5b00348 Publication Date (Web): November 6, 2015 クメンパーオキシドを光で開裂させることにより、生成するクミルアルコキシルラジカルによるアルカンやアミンのC–H切断の速度定数などの情報がまとまっています。 溶媒や、酸、基質の形が反応速度定数に与える影響を定量的に評価しています。 酸化反応をしている方は、手元に置いておいても良いのでしょうか。

Periplasmic Nitrate Reductase and Formate Dehydrogenase: Similar Molecular Architectures with Very Different Enzymatic Activities

Accounts of Chemical Research  by Nuno M. F. S. A. Cerqueira, Pablo J. Gonzalez, Pedro. A. Fernandes, José J. G. Moura and Maria João Ramos  Accounts of Chemical Research DOI: 10.1021/acs.accounts.5b00333 Visit Website