Electrophilic Cyclization of Buta-1,3-diynylarenes: Synthesis of Precursors of (Z)-3-Ene-1,5-diyne Systems Fused to Heterocycles
作者:Stefan Bräse、Irina Balova、Natalia Danilkina
DOI:10.1055/s-0030-1259547
日期:2011.3
simple, convenient, and promising strategy for the synthesis of 2-ethynyl-3-iodo-benzothiophenes, -benzofurans, and -indoles based on electrophilic cyclization of easily available ortho- functionalized (buta-1,3-diynyl)arenes was developed. The unique potential of using these compounds as starting materials for the syn- thesis of enediyne systems, containing thiophene, furan, and pyrrole units is demonstrated
基于易于获得的邻位官能化(buta-1,3-diynyl)芳烃的亲电环化,开发了一种简单、方便且有前景的合成 2-ethynyl-3-iodo-benzothiophenes、-benzofurans 和-indoles 的策略. 证明了使用这些化合物作为合成烯二炔系统(包含噻吩、呋喃和吡咯单元)的起始材料的独特潜力。