Palladium-Catalyzed Regioselective Oxidative Coupling of Indoles and One-Pot Synthesis of Acetoxylated Biindolyls
作者:Zunjun Liang、Jinlong Zhao、Yuhong Zhang
DOI:10.1021/jo902265s
日期:2010.1.1
developed to achieve Pd-catalyzed homocoupling of indoles with excellent regioselectivity in the presence of Cu(OAc)2·H2O in DMSO at room temperature in high efficiency. This method provides a simple route to 2,3′-biindolyls from the electron-rich to moderately electron-poor indoles. The reaction tolerates the bromide substituent on indoles. In addition, a one-pot approach to C3-position acetoxylated biindolyls
π-Extension of Indoles Using Acrolein Linker: Synthesis of Indolo[3,2-<i>a</i>]carbazole-6-carbaldehydes and Racemosin B
作者:Yinghua Li、Jiang Jin、Weibin Fan、Deguang Huang
DOI:10.1021/acs.orglett.3c03346
日期:2023.11.24
the synthesis of indolo[3,2-a]carbazole-6-carbaldehydes by the π-extension of indoles with acrolein is reported. The scope of the method is demonstrated with 33 examples. The products exhibit high activities toward advanced synthesis and are proved to be able to produce valuable chemicals, such as naturalproducts, dyes, and organic fluorescent materials. In addition, the alkaloid racemosin B can be
报道了一种通过吲哚与丙烯醛的π-延伸合成吲哚并[3,2- a ]咔唑-6-甲醛的简单方法。通过 33 个示例演示了该方法的范围。这些产品在高级合成方面表现出很高的活性,并被证明能够生产有价值的化学品,如天然产物、染料和有机荧光材料。此外,通过该方法可以分两步制备生物碱racemosin B,总产率约50%。