Murray J. B. Brown, Douglas E. Fuerst, Derren J. Heyes, Richard Obexer & Anthony P. Green. A Designed Photoenzyme for Enantioselective [2+2]-Cycloadditions. Nature. 2022. https://doi.org/10.1038/s41586-022-05335-3
Reactions of 2-bromoesters and styrenes underwent a [2+1] cycloaddition reaction,i.e., cyclopropanation, to produce donor–acceptor (D–A) cyclopropanes through a radical addition-ring closure process. In this reaction, the combination of copper(ii) complex and amines is found to be a good ...
Mechanism and Stereochemistry of Rhodium-Catalyzed [5 + 2 + 1] Cycloaddition of Ene–Vinylcyclopropanes and Carbon Monoxide Revealed by Visual Kinetic Analysis and Quantum Chemical Calculations Yi Wang, Wei Liao, Yuanyuan Wang, Lei Jiao, and Zhi-Xiang Yu* J. Am. Chem. Soc.,2022,144, 2624–...
Synthesis of pyrroles via ruthenium-catalyzed nitrogen-transfer [2 + 2 + 1] cycloaddition of α,ω-diynes using sulfoximines as nitrene surrogates Kazuma Matsui Masatoshi Shibuya Yoshihiko Yamamoto Communications Chemistry (2018) Modern applications of low-valent early transition metals in ...
这篇论文是他当年博士论文的重要延续和阐述,这也是标题“推敲”十五年的由来。 搞不清楚机理,那就一直坚持探索,余老师精益求精的精神,值得我们学习。 Mechanism and Stereochemistry of Rhodium-Catalyzed [5 + 2 + 1] Cycloaddition of Ene–Vinylcyclopropanes and Carbon Monoxide Revealed by Visual Kinetic ...
近日,中国科学院广州生物医药与健康研究院朱强/罗爽课题组通过铜/手性磷酸催化的烯基异腈分子内还原(1+2)环加成反应,对映选择性合成了多种含有N-H的2-氮杂双环[3.1.0]己烷化合物。相关研究以“Copper/Chiral Phosphoric-Acid-Cata...
The [2+2] cycloaddition [2+2]周环加成 …… 按照之前讲的,会分出前过渡金属(d电子数较少的)和后过渡金属(d电子数较多的),其中,后过渡金属的反应以Pd最常见,之后会介绍大部分d区过渡元素的反应,Y、Nb、Tc、Re、Ir等不常见的不会讲,Zn、Cd、Cu、Hg、Ag等一些基础化学中介绍过的反应也不会细讲。
Palladium catalysed [2 + 2 + 1] intramolecular cycloaddition for the preparation of bicyclo[3.3.0]octa-1.5-dien-3-ones from 1,6-diynes. Palladium catalysed [2 + 2 + 1] intramolecular cycloaddition for the preparation of bicyclo[3.3.0]octa-1.5-dien-3-ones from 1,6-diynes. Ronald Grigg....
Photosensitized [2+2]-Cycloadditions of Alkenylboronates and Alkenes Yanyao Liu+, Dongshun Ni+, Bernard G. Stevenson, Vikrant Tripathy, Sarah E. Braley, Krishnan Raghavachari, John R. Swierk,* and M. Kevin Brown* Angew. Chem. Int. Ed. DOI: 10.1002/anie.202200725...
Access to Complex Scaffolds Through [2 + 2] Cycloadditions ofStrained Cyclic Allenes. Matthew S. McVeigh, Jacob P. Sorrentino, Allison T. Hands, Neil K. Garg*. J. Am. Chem. Soc.2024 https://doi.org/10.1021/jacs.4c03369 长按扫码,查看原文 ...