2-(1-Alkoxycarbonyl)alkylidenetetrahydrofurans were readily synthesized by the codimerization of 2,3- or 2,5-dihydrofurans with α,β-unsaturated esters using a zerovalent Ru catalyst, Ru(cod)(cot), with high regio- and stereoselectivity.
通过使用零价 Ru 催化剂 Ru(cod)(cot),2,3- 或 2,5- 二氢
呋喃与 α,β-不饱和酯的二聚化反应很容易合成 2-(1-烷氧基羰基)亚烷基
四氢呋喃,且具有很高的区域和立体选择性。