Diallene Formation by Copper(I)-Mediated Reactions of Zirconacyclopentanes with Propargyl Halides
作者:Tamotsu Takahashi、Zheng Duan、Takahiro Nishimoto、Masamichi Ogasawara
DOI:10.1055/s-2005-870017
日期:——
In the presence of CuCl, zirconacyclopentanes reacted with two equivalents of a propargyl halide to give bisallenylation products in moderate to high yields. By controlling the amount of CuCl, stepwise allenylation was achieved and a variety of unsymmetrically substituted diallene derivatives were prepared as well.
在 CuCl 的存在下,锆环戊烷与两当量的丙炔卤化物发生反应,以中等至高产率得到双allenylation 产物。通过控制 CuCl 的用量,可以实现逐步异烯化反应,并制备出多种非对称取代的二烯烃衍生物。