Zr-Site Lewis Acidity Determines Terpenoid Reduction Selectivity [0.03%]
配位的Zr原子路易斯酸性决定了萜类化合物加氢反应的选择性
Kinga Gołabek,Svetlana Kurucová,Juan Francisco Miñambres et al.
Kinga Gołabek et al.
Lewis acid zeolites, primarily Al-free Zr and Sn silicates, catalyze the chemoselective reduction of ketones and aldehydes to the corresponding alcohols through hydrogen transfer (Meerwein-Ponndorf-Verley (MPV) reduction). Sn silicates are ...
Selective CO2 Electroreduction to CO by an Organometallic Nickel Catalyst Featuring a C3-Symmetric Tris(Phosphino)Alkyl Ligand [0.03%]
一个C3对称的三膦烷基配体配合物金属镍催化剂选择性地将二氧化碳电还原为一氧化碳
Sergio Fernández,Klaudia Michaliszyn,Ekaterina S Smirnova et al.
Sergio Fernández et al.
We report a Nickel CO2 reduction electrocatalyst based on a C 3-symmetric tris-(phosphino)-alkyl ligand, CNPPh3, which displays a metalated axial carbon atom. Catalyst Ni H Br selectively reduces CO2 to CO (FYCO = 94%) at -2.3 V vs Fc+/0 wi...
Effective Ion Concentration as a Descriptor for the Local Reaction Environment at Nanoparticle-Based Electrocatalysts [0.03%]
有效离子浓度作为纳米颗粒基电催化剂局部反应环境的描述符
Yufan Zhang,Tobias Binninger,Jun Huang et al.
Yufan Zhang et al.
Electrocatalyst nanoparticles, attached to an electronically conductive support material, are key components that determine the performance and lifetime of electrochemical devices like fuel cells and electrolyzers. Differences in electronic...
Nickel-Catalyzed Enantioselective Diboration of 1,2-Dihydropyridines: Application and Insight into the Selectivity and Mechanism [0.03%]
镍催化1,2-二氢吡啶的对映选择性双官能化：底物范围、选择性研究及机理探讨
Michael R Berwanger,Trevor K Kubenik,Hao Liang et al.
Michael R Berwanger et al.
1,2-Dihydropyridine was found to undergo enantioselective nickel-catalyzed 1,4-diboration with exclusive regio- and diastereoselectivity employing a monodentate chiral phosphine ligand. The products were found to undergo regioselective ally...
Substrate Analogs Implicate a Free Radical Pathway in Tyrosine Hydroxylase Catalysis [0.03%]
底物类似物表明多巴脱羧酶催化过程中自由基的作用路径
Ephrahime S Traore,Yifan Wang,Wendell P Griffith et al.
Ephrahime S Traore et al.
Heme-dependent tyrosine hydroxylases (TyrH) are critical enzymes in catecholamine biosynthesis, yet the role of the substrate's α-amino group in their monooxygenation mechanism has been unclear. Using 3-(4-hydroxyphenyl)propionic acid (HPP...
Visible light promotes PIII/PV-catalyzed reductive N-arylation of nitroarenes at room temperature [0.03%]
可见光促进的室温亚硝基芳烃N-芳基化反应
Bora Kang,Marissa N Lavagnino,Jesse B Gordon et al.
Bora Kang et al.
Visible light irradiation is found to accelerate the reductive coupling of nitroarenes and arylboronic acids under conditions of PIII/PV catalysis. Specifically, blue light (λexc = 427 nm) illumination of catalytic mixture composed of a re...
Unveiling the Transgalactosylation Switch of a GH42 β‑Galactosidase from the Infant Isolate Bifidobacterium breve DSM20213 [0.03%]
揭开婴儿菌株短双歧杆菌DSM20213来源的GH42型β-半乳糖苷酶的跨糖基化开关
Konlarat Phirom-On,Khanh-Trang Vu-Le,Leander Sützl et al.
Konlarat Phirom-On et al.
β-Galactosidases catalyze the transgalactosylation of lactose to produce prebiotic galacto-oligosaccharides (GOS), key fortificants in infant formulas. A β-galactosidase from the infant isolate Bifidobacterium breve DSM20213 (Bbreβgal-II...
Operando UV/vis Absorption Spectroscopy for Studying the Nitrate to Ammonia Conversion on Cu2O‑Based Electrodes [0.03%]
基于铜电极研究硝酸盐转化为氨的原位紫外光谱方法
Maria Huidobro,Luis Romay,Martin Perez-Estebanez et al.
Maria Huidobro et al.
The electrochemical conversion of nitrate to ammonia was proposed as a feasible strategy for ammonia production. However, a deep understanding of the reaction mechanism and catalyst transformation is still needed to reach real applications....
Formylation-Decarbonylation Relay Strategy for the Selective Hydrogenation of CO2 to CO [0.03%]
二氧化碳选择性加氢制一氧化碳的醛基化-脱羰基级联策略
James Luk,Luke Andrew,Garima Saini et al.
James Luk et al.
We report here an alternative approach to conducting the reverse water-gas shift (RWGS) reaction catalyzed by a ruthenium pincer complex and an amine. In this strategy, a secondary amine is first formylated by CO2 and H2 to make H2O and for...
Advancing NanoLuc Luciferase Stability beyond Directed Evolution and Rational Design through Expert-Guided Deep Learning [0.03%]
通过专家指导的深度学习推进NanoLuc萤光素酶的稳定性超出了定向进化和理性设计
Spencer Gardiner,Joseph Talley,Tyler Green et al.
Spencer Gardiner et al.
Engineered luciferases have transformed biological imaging and sensing, yet optimizing NanoLuc luciferase (NLuc) remains challenging due to the inherent stability-activity trade-off and its limited sequence homology with characterized prote...