Synthesis of carbazoles related to carbazomycin, hyellazole and ellipticine.
作者:Jan Bergman、Benjamin Pelcman
DOI:10.1016/s0040-4020(01)86029-4
日期:1988.1
2-disubstituted carbazoles are described. The first involves condensation of 2-alkyl-substituted indoles with 2,3-unsaturated ketones in the presence of Pd/C and molecular sieves, the second is based on the reaction of a 2-vinylic indole with the Vilsmeier reagent. The vinylic indoles were prepared by a Fischer indole synthesis, or via 1-benzenesulphonyl-2-lithioindole.
描述了两种合成1,2-二取代咔唑的途径。第一个涉及在Pd / C和分子筛的存在下2-烷基取代的吲哚与2,3-不饱和酮的缩合,第二个基于2-乙烯基吲哚与Vilsmeier试剂的反应。乙烯基吲哚通过Fischer吲哚合成或通过1-苯磺酰基-2-硫代吲哚制备。