Palladium Catalyzed Regioselective Cyclization of Arylcarboxylic Acids via Radical Intermediates with Diaryliodonium Salts
作者:Guoqiang An、Limin Wang、Jianwei Han
DOI:10.1021/acs.orglett.1c03016
日期:2021.11.19
Palladium-catalyzed C2-arylation/intramolecular acylation with arylcarboxylic acids was developed by using diaryliodonium salts. The protocol has the advantage of good step-economy by two chemical bonds formation in one pot.
通过使用二芳基碘鎓盐开发了钯催化的 C 2 -芳基化/与芳基羧酸的分子内酰化。该协议的优点是在一锅中形成两个化学键,具有良好的阶梯经济性。
Pd-Catalyzed Synthesis of 9,9′-Bifluorenylidene Derivatives via Dual C–H Activation of Bis-biaryl Alkynes
作者:Jian Zhao、Naoki Asao、Yoshinori Yamamoto、Tienan Jin
DOI:10.1021/ja503252k
日期:2014.7.9
We report a novel Pd-catalyzed alkyne-directed dualC-Hactivation of bis-biaryl alkynes, which produced important and useful products, 9,9'-bifluorenylidene (9,9'BF) derivatives, in high yields with a broad range of functional group compatibility. The combination of the PdCl2 catalyst with the MnO2 oxidant and PivOH additive is vital for realization of the present catalytic transformation. Mechanistic