A Highly Diastereo- and Enantioselective Hg(II)-Catalyzed Cyclopropanation of Diazooxindoles and Alkenes
作者:Zhong-Yan Cao、Feng Zhou、Yi-Hua Yu、Jian Zhou
DOI:10.1021/ol302998m
日期:2013.1.4
It is reported for the first time that Hg(II) can catalyze the cyclopropanation of diazo reagents and alkenes, which contributes to the unprecedented highlydiastereo- and enantioselective synthesis of spirocyclopropyloxindoles.
Indium(<scp>iii</scp>)-catalyzed efficient synthesis of 3-arylhydrazonoindolin-2-ones and their fluorescent metal sensing studies
作者:Shreedhar Devkota、Sonaimuthu Mohandoss、Yong Rok Lee
DOI:10.1039/d1nj05715d
日期:——
In(iii)-catalyzed strategy for the preparation of 3-arylhydrazonoindolin-2-ones from 3-diazoindoles is developed and used for Fe3+ and Hg2+ ion sensing.
Synergistic-Catalysis-Enabled Reaction of 2-Indolymethanols with Oxonium Ylides for the Construction of 3-Indolyl-3-Alkoxy Oxindole Frameworks
作者:Chun Ma、Jia-Yu Zhou、Yi-Zhu Zhang、Yinchun Jiao、Guang-Jian Mei、Feng Shi
DOI:10.1002/asia.201800620
日期:2018.9.4
synergistic‐catalysis‐enabled reaction of 2‐indolymethanols with oxoniumylides has been established that makes use of a three‐component reaction between 3‐diazooxindoles, alcohols, and 2‐indolymethanols under the cooperative catalysis of a metal complex and a Brønsted acid. This reaction has not only provided a new approach for the construction of 3‐indolyl‐3‐alkoxy oxindole scaffolds by utilizing the
A spiroketal bisphosphine (SKP) derived chiral digold complex is identified as a powerful catalyst for the highly diastereo- and enantioselective synthesis of spirocyclopropyloxindoles from diazooxindoles and a broad range of alkenes, including both cis and trans 1,2-disubstituted alkenes.