Deaminative Arylation and Alkenyaltion of Aliphatic Tertiary Amines with Aryl and Alkenylboronic Acids via Nitrogen Ylides
作者:Jianke Su、Chengbo Li、Xinyuan Hu、Yu Guo、Qiuling Song
DOI:10.1002/anie.202212740
日期:2022.12.23
arylation and alkenylation of tertiary amines with aryl and alkenylboronic acids is enabled by difluorocarbene under transition-metal-free conditions. This protocol represents a novel reaction mode which succeeded in the construction of Csp3−Csp2 bonds via an in situ formed nitrogen ylide from tertiary amines (propargylamines, allylamines and 1H-indol-3-yl methane amines) and difluorocarbene with aryl and
在无过渡金属的条件下,二氟卡宾能够实现叔胺与芳基和烯基硼酸的有效且通用的脱氨芳基化和烯基化。该协议代表了一种新的反应模式,它通过叔胺(炔丙基胺、烯丙基胺和 1H-吲哚-3-基甲烷胺)和二氟卡宾原位形成的氮叶立德成功地构建了 C sp 3 -C sp 2键与芳基和烯基硼酸。
Visible-Light-Promoted Cascade Alkene Trifluoromethylation and Dearomatization of Indole Derivatives via Intermolecular Charge Transfer
作者:Min Zhu、Kai Zhou、Xiao Zhang、Shu-Li You
DOI:10.1021/acs.orglett.8b01899
日期:2018.7.20
An intramolecular dearomatization of indole derivatives has been developed via an electron donor-acceptor complex formed between indole derivatives and Umemoto's reagent. Without the requirement of any catalyst and additive, diverse trifluoromethyl-substituted spiroindolenines bearing a quaternary stereogenic center were obtained in good yields (up to 90%) merely upon the illumination of two starting materials in 1,2-dichloroethane solution at room temperature. This work provides facile access to spiroindolenines bearing a trifluoromethyl group enabled by visible light.
JOSHI K. C.; PATHAK V. N.; SINGH R. P., MONATSH. CHEM., 1980, 111, NO 6, 1343-1350