Palladium-catalyzed oxidative C–H bond acylation of N-nitrosoanilines with toluene derivatives: a traceless approach to synthesize N-alkyl-2-aminobenzophenones
作者:Yinuo Wu、Ling-Jun Feng、Xiao Lu、Fuk Yee Kwong、Hai-Bin Luo
DOI:10.1039/c4cc07440h
日期:——
A palladium-catalyzed cascade cross-coupling of N-nitroso-anilines and toluene derivatives for the direct synthesis of N-alkyl-2-aminobenzophenones is described. N-nitroso groups in anilines can act as the traceless directing groups while toluene derivatives can serve as effective acyl precursors under mild reaction conditions.
Synthesis of 2-aminobenzophenones through acylation of anilines with α-oxocarboxylic acids assisted by <i>tert</i>-butyl nitrite
作者:Qianqian Wang、Xinying Zhang、Xuesen Fan
DOI:10.1039/c8ob01846d
日期:——
regioselective, efficient and convenient synthesis of 2-aminobenzophenones through acylation of anilines with α-oxocarboxylic acids assisted by tert-butyl nitrite is presented. Interestingly, tert-butyl nitrite acts as not only an efficient and mild nitrosation reagent, but also a sustainable oxidant required in the Pd(II)-catalyzed decarboxylative acylation. Meanwhile, the NO unit turned out to be