An efficient tandem eliminationâcyclizationâdesulfitative arylation of 2-(gem-dibromovinyl)phenols(thiophenols) with sodium arylsulfinates has been developed. In the presence of TBAFâPdCl2âCu(OAc)2âNEt3, the reactions generated 2-arylbenzofurans(thiophenes) with good yields in one-pot under ligand-free conditions.
开发了一种高效的串联去除、环化和去亚磺酰化芳基化反应,利用2-(gem-二
溴乙烯基)
酚(
硫酚)与芳基亚
磺酸钠反应。在TBAF–PdCl2–Cu(OAc)2–NEt3的催化下,该反应在无
配体条件下以一锅法生成了产率良好的2-芳基
苯并呋喃(
硫烯)。