A biosynthetically inspired route to substituted furans using the Appel reaction: total synthesis of the furan fatty acid F<sub>5</sub>
作者:Robert J. Lee、Martin R. Lindley、Gareth J. Pritchard、Marc C. Kimber
DOI:10.1039/c7cc03229c
日期:——
Appel reaction conditions have been harnessed to affect a mild biosynthetically inspired dehydration of endoperoxides to deliver multi-substituted electron rich furans. Unlike traditional dehydrative procedures, this method is metal and acid free, and can be achieved under redox neutral conditions. It is general for a range of aryl and alkyl substituted endoperoxides, and is functional group tolerant
CuH-Catalyzed Enantioselective 1,2-Reductions of α,β-Unsaturated Ketones
作者:Ralph Moser、Žarko V. Bošković、Christopher S. Crowe、Bruce H. Lipshutz
DOI:10.1021/ja102689e
日期:2010.6.16
The first study on a general technology for arriving at valued nonracemic allylic alcohols using asymmetricligand-acceleratedcatalysis by copper hydride is described.
描述了使用氢化铜的不对称配体加速催化获得有价值的非外消旋烯丙醇的通用技术的第一项研究。
Enantioselective Preparation, Conformational Analysis and Absolute Configuration of Highly Substituted Aziridines
reaction was found to be highly enantio‐ and diastereoselective, yielding N‐tosylated aziridines. Low‐temperature nuclear magnetic resonance (NMR) spectra allowed for the determination of the N‐inversion barrier, that was found to be quite lower with respect to unsubstituted aziridines. A thorough conformationalanalysis supported by low‐temperature NMR data allowed for the determination of the absolute