作者:Nageshwar R. Yepuri、Rachada Haritakul、Paul A. Keller、Brian W. Skelton、Allan H. White
DOI:10.1016/j.tetlet.2009.03.052
日期:2009.5
The reaction of electron-rich 3-aryl-substituted 4,6-dimethoxyindoles in the presence of base with triflic anhydride results in biaryl coupling, producing both 2,2′- and 2,7′-biindoles. Further, if acetone is present, the corresponding vinyl triflate is formed and subsequent reaction yields the known indolylpyrroloindoles and dimeric spiroindoles. This is the first reported synthesis of these compounds
在碱的存在下,富电子的3-芳基取代的4,6-二甲氧基吲哚与三氟甲磺酸酐的反应导致联芳基偶合,产生2,2'-和2,7'-联吲哚。此外,如果存在丙酮,则形成相应的三氟甲磺酸乙烯酯,随后的反应产生已知的吲哚基吡咯并吲哚和二聚螺吲哚。这是在碱性条件下首次报道这些化合物的合成。