A novel palladium-catalyzed interannular selective C-H silylation of 1,1'-biaryl-2-acetamides is described. The combination of palladium catalyst with copper oxidant enables meta- or ortho-selective C-H silylation by employing hexamethyldisilane as a trimethylsilyl source, which relies on the control of NBE derivatives as a switch, thus providing straightforward access to divergent silicon-containing 1,1'-biaryl-2-acetamides.
Ruthenium-catalyzed ortho-arylation of acetanilides with aromatic boronic acids: an easy route to prepare phenanthridines and carbazoles
作者:Ravi Kiran Chinnagolla、Masilamani Jeganmohan
DOI:10.1039/c3cc49398a
日期:——
A regioselective ruthenium-catalyzed ortho-arylation of acetanilides with aromatic boronic acids is described. Later, ortho-arylated acetanilides were converted into phenanthridine and carbazole derivatives.
作者:Wenguang Li、Wenqi Chen、Bang Zhou、Yankun Xu、Guobo Deng、Yun Liang、Yuan Yang
DOI:10.1021/acs.orglett.9b00690
日期:2019.4.19
A novel palladium-catalyzed interannular selective C-H silylation of 1,1'-biaryl-2-acetamides is described. The combination of palladium catalyst with copper oxidant enables meta- or ortho-selective C-H silylation by employing hexamethyldisilane as a trimethylsilyl source, which relies on the control of NBE derivatives as a switch, thus providing straightforward access to divergent silicon-containing 1,1'-biaryl-2-acetamides.
Barber et al., Journal of the Chemical Society, 1947, p. 84,86