Highly regioselective opening of zirconacyclopentadienes by remote coordination: concise synthesis of the furan core of the leupyrrins
作者:Thomas Debnar、Sandra Dreisigacker、Dirk Menche
DOI:10.1039/c2cc37678d
日期:——
An efficient protocol for the highly regioselective opening of aliphatic zirconacyclopentadienes is reported. The one-pot process involves a zirconocene-mediated cyclization of 1,6-diynes and highly selective cleavage of the metallacycles with NBS and enables a concise synthesis of the tetrahydrofuran-core of the leupyrrins.
报道了用于脂族氧化锆环戊二烯的高度区域选择性开放的有效方案。一锅法涉及锆茂介导的1,6-二炔的环化和用NBS高度选择性地裂解金属环,并能够精制合成亮丙瑞林的四氢呋喃核。