Development, Scope, and Applications of Titanium(III)-Catalyzed Cyclizations to Aminated N-Heterocycles
作者:Leonardus H. Leijendekker、Jens Weweler、Tobias M. Leuther、Daniel Kratzert、Jan Streuff
DOI:10.1002/chem.201805909
日期:2019.3.1
their synthesis by modern catalytic methods. This full paper presents the development and extended scope of the new cyclization methodology. The transformation of the products into fused bis‐indoles is also demonstrated along with the discovery of an unusual palladium‐catalyzed reductive biphenyl coupling reaction. The titanium(III)‐catalyzed cyclization has also been applied to the synthesis of substituted
Cross-Dehydrogenative C–H Amination of Indoles under Aerobic Photo-oxidative Conditions
作者:Tomoaki Yamaguchi、Eiji Yamaguchi、Akichika Itoh
DOI:10.1021/acs.orglett.7b00026
日期:2017.3.17
A novel cross-dehydrogenative C(sp(2))-H amination catalyzed by an organic photocatalyst is reported. The reaction is mediated by 2-tert-butylanthraquinone as a photo catalyst, harmless visible light, and aerobic oxygen as the sole oxidant without a transition-metal catalyst and or external oxidant.