Synthesis of <i>N</i>-Acylcarbazoles through Palladium-Catalyzed Aryne Annulation of 2-Haloacetanilides
作者:Chun Lu、Nataliya A. Markina、Richard C. Larock
DOI:10.1021/jo3021727
日期:2012.12.21
N-Acylcarbazoles have been synthesized in moderate to good yields by the annulation of in situ generated arynes with 2-haloacetanilides in the presence of a palladium catalyst and CsF. Both C–C and C–N bonds are formed simultaneously, and a variety of functional groups are tolerated in this reaction.
Synthesis of N-aroyl-2-arylindoles using solid calcium carbide as an alkyne source instead of gaseous acetylene
作者:Qian Wang、Zheng Li
DOI:10.1016/j.tet.2023.133548
日期:2023.8
synthesis of N-aroyl-2-arylindoles by reactions of 2 mol of various N-(2-iodoaryl)arylamides with 1 mol of calciumcarbide through one-step procedure is described. This protocol has the salient features of the use of an inexpensive, abundant and easy-to-handle solidcalciumcarbide instead of flammable and explosive gaseous acetylene as an original alkynesource. In addition, wide scope of substrates, satisfactory