作者:Anais Jolit、Cody F. Dickinson、Kei Kitamura、Patrick M. Walleser、Glenn P. A. Yap、Marcus A. Tius
DOI:10.1002/ejoc.201701117
日期:2017.11.2
The detailed account of an asymmetric Nazarovcyclization that leads to α-hydroxycyclopentenones bearing either vicinal, all-carbon atom quaternary centers, or vicinalquaternary and tertiary centers is described. The all-aliphatic examples represent the greatest challenge as the dienone starting materials are not activated toward cyclization by an aryl group. The rational design and optimization of
Stereoselective synthesis of tetrasubstituted .alpha.,.beta.-unsaturated esters
作者:Jacob Mathew
DOI:10.1021/jo00035a043
日期:1992.4
Stereospecific anti radical elimination reaction from .beta.-nitro sulfones
作者:Noboru Ono、Akio Kamimura、Aritsune Kaji
DOI:10.1021/jo00232a010
日期:1987.11
Stereospecific Electrophilic Fluorocyclization of α,β-Unsaturated Amides with Selectfluor
作者:Haiyang Fei、Zheyuan Xu、Hongmiao Wu、Lin Zhu、Hitesh B. Jalani、Guigen Li、Yao Fu、Hongjian Lu
DOI:10.1021/acs.orglett.0c00620
日期:2020.4.3
An efficient fluorocyclization of α,β-unsaturated amides through a formal halocyclization process is developed. The reaction proceeds undertransition-metal-freeconditions and leads to the formation of fluorinated oxazolidine-2,4-diones with excellent regio- and diastereoselectivity. The evaluation of the reaction mechanism based on preliminary experiments and density functional theory calculations