Sunlight-driven trifluoromethylation of olefinic substrates by photoredox catalysis: A green organic process
作者:Munetaka Akita、Takashi Koike
DOI:10.1016/j.crci.2015.01.013
日期:2015.7
types of catalytic photoredox processes following the reductive quenching cycle (RQC) and the oxidative quenching cycle (OQC), the discussion is focused on organic transformations based on OQC, in particular the trifluoromethylation of olefinic substrates with electrophilic trifluoromethylating reagents furnishing solvolytic addition products and substitution products. It is concluded that catalytic
A Transient‐Directing‐Group Strategy Enables Enantioselective Reductive Heck Hydroarylation of Alkenes
作者:Lucas J. Oxtoby、Zi‐Qi Li、Van T. Tran、Tuğçe G. Erbay、Ruohan Deng、Peng Liu、Keary M. Engle
DOI:10.1002/anie.202001069
日期:2020.6.2
practicality of reactions that rely on their use. Inspired by developments in asymmetric organocatalysis, where reactions rely on reversible covalent interactions between an organic substrate and a chiral mediator, we have developed a transient-directing-group approach to reductive Heck hydroarylation of alkenyl benzaldehyde substrates that proceeds under mild conditions. Highly stereoselective migratory insertion
Enantioselective Rhodium-Catalyzed Alkenylation of Aliphatic Imines
作者:Xue-Wei Qian、Ze-Jian Xue、Qian Zhao、Zhe Cui、Ya-Jing Chen、Chen-Guo Feng、Guo-Qiang Lin
DOI:10.1021/acs.orglett.7b02737
日期:2017.10.20
An efficient, enantioselective rhodium-catalyzed addition of potassium alkenyltrifluoroborates to N-nosyl aliphatic imines has been realized. Good reaction yields and excellent enantioselectivities (94–99% ee) were obtained for a variety of aliphatic imines and nucleophilic alkenyltrifluoroborates. An active rhodium-diene catalyst and the precise reaction condition control proved to be pivotal for