Palladium-catalyzed decarboxylative ortho-acylation of N-nitrosoanilines with α-oxocarboxylic acids
作者:Jia-Ping Yao、Guan-Wu Wang
DOI:10.1016/j.tetlet.2016.03.009
日期:2016.4
A palladium-catalyzed efficient C–H acylation reaction of N-nitrosoanilines with α-oxocarboxylic acids has been developed. The reaction proceeded smoothly with potassiumpersulfate as the oxidant to afford acylated N-nitrosoanilines in moderate to good yields with a broad substrate scope and good regioselectivity.
Palladium-Catalyzed Decarboxylative Acylation of <i>N</i>-Nitrosoanilines with α-Oxocarboxylic Acids
作者:Yinuo Wu、Lei Sun、Yunyun Chen、Qian Zhou、Jia-Wu Huang、Hui Miao、Hai-Bin Luo
DOI:10.1021/acs.joc.5b02535
日期:2016.2.5
A palladium-catalyzed oxidative C–H bond decarboxylative acylation of N-nitrosoanilines using α-oxocarboxylic acid as the acyl source is described. The catalyst Pd(OAc)2 and oxidant (NH4)2S2O8 enabled ortho-acylation of N-nitrosoanilines at room temperature, affording an array of N-nitroso-2-aminobenzophenones in moderate to excellent yields.
描述了使用α-氧代羧酸作为酰基源的钯催化的N-亚硝基苯胺的氧化C–H键脱羧酰化反应。催化剂Pd(OAc)2和氧化剂(NH 4)2 S 2 O 8可以在室温下对N-亚硝基苯胺进行邻酰化,从而以中等至极好的收率提供了一系列N-亚硝基-2-氨基二苯甲酮。
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
An efficient and mild protocol for regioselective synthesis of N-Nitroso aryl ketones by palladium-catalyzed directacylation of arenes using N-Nitroso as directing groups is described. This reaction proceeded smoothly and could tolerate a variety of functional groups. Moreover, this chemistry offers a convenient access to a range of indazoles.