Cationic Palladium(II) Catalysis: C−H Activation/Suzuki−Miyaura Couplings at Room Temperature
作者:Takashi Nishikata、Alexander R. Abela、Shenlin Huang、Bruce H. Lipshutz
DOI:10.1021/ja910973a
日期:2010.4.14
Cationic palladium(II) catalyst realized facile C-Hactivation of aryl urea with arylboronic acids at roomtemperature. This reaction is extremely mild to carry out aromatic C-Hactivations through electrophilic substitution.
Direct and site-selective Pd(<scp>ii</scp>)-catalyzed C-7 arylation of indolines with arylsilanes
作者:Haiqing Luo、Haidong Liu、Zhipeng Zhang、Yifan Xiao、Sihui Wang、Xuzhong Luo、Kejun Wang
DOI:10.1039/c6ra06915k
日期:——
The palladium-catalyzedoxidative arylation of indolines with arylsilanes at the C-7 position via C–H bond activation has been reported. This transformation has been applied to a wide range of substrates. It represents a facile access to C-7 arylated indolines, which can be conveniently transformed into C-7 arylated indoles.
Exceptionally Mild Palladium(II)-Catalyzed Dehydrogenative C–H/C–H Arylation of Indolines at the C-7 Position under Air
作者:Lin-Yu Jiao、Polina Smirnov、Martin Oestreich
DOI:10.1021/ol503035z
日期:2014.11.21
method for the dehydrogenative C–H/C–H cross-coupling at the C-7 position of indolines containing a urea as a directing group is reported. The new protocol is a rare example of an aerobic palladium(II)-catalyzed crossdehydrogenativecoupling (CDC) reaction that proceeds at low temperature. The use of either Cu(OAc)2 in an open flask or dioxygen (balloon) at 50 °C tolerates indolines not substituted
Room-Temperature Stille Coupling of Tetraarylstannanes via Palladium-Catalyzed C-H Activation
作者:Dong Xue、Jianliang Xiao、Jing Li、Yu-Xia Liu、Wen-Yong Han、Zun-Ting Zhang、Chao Wang
DOI:10.1055/s-0032-1316581
日期:2012.8
An effective room-temperature Stille cross-coupling of aryl ureas with tetraarylstannanes via palladium-catalyzed C-H bond activation is reported, providing a mild method for direct arylation of aromatic C-H bonds.