Synthesis of indoles upon sequential reaction of 3-alkynylpyrrole-2-carboxaldehydes with iodonium ions and alkenes.: Preparation of related benzofuran and benzothiophene derivatives

被引:55
作者
Barluenga, J [1 ]
Vázquez-Villa, H [1 ]
Ballesteros, A [1 ]
González, JM [1 ]
机构
[1] Univ Oviedo, CSIC, Unidad Asociada, Inst Univ Quim Organometal Enrique Moles, E-33006 Oviedo, Spain
关键词
alkenes; enamines; indoles; iodine; pyrroles;
D O I
10.1002/adsc.200404293
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Di- and trisusbstituted indoles 2 have been prepared by reaction of pyrroles 1 with alkenes via iodonium-induced benzannulation reaction. Enamines and enol ethers are also useful partners in that cyclisation process. This regioselective transformation can be easily adapted to prepare related benzofuran and benzothiophene skeletons.
引用
收藏
页码:526 / 530
页数:5
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