A much improved route to 1,1′-bis(arylethynyl)ferrocenes comprising accessible thiolates on the aryl ring is reported. Unanticipated reactions between AcCl, TBAF–BBr3 and ferrocenyl-alkynes are also discussed, offering a rationale for previous synthetic difficulties.
报道了一种大大改进的合成1,1'-双(芳基
乙炔基)
二茂铁的路线,其中芳基环上有易获取的巯基。还讨论了AcCl、TBAF-BBr3和
二茂铁基
炔烃之间意想不到的反应,为以前的合成困难提供了合理解释。