Cu<sup>I</sup>/L-Proline-Catalyzed Coupling of Substituted 3-Iodoprop-2-en-1-ols with 1-Alkynes and Subsequent Cyclization: A Convenient Approach for Synthesizing Polysubstituted Furans
作者:You Wang、Lanting Xu、Dawei Ma
DOI:10.1002/asia.200900523
日期:2010.1.4
Coming full circle: CuI/L‐proline‐catalyzed coupling of substituted 3‐iodoprop‐2‐en‐1‐ols and terminal alkynes followed by copper‐mediated cycloisomerization produced furans in good yields. This method allows the assembly of 2,3,4‐ and 2,3,5‐trisubstituted furans, as well as 2,3,4,5‐tetrasubstituted furans.
即将出现一个完整的圆圈:CuI / L脯氨酸催化的取代3-碘丙-2--2-烯-1-醇和末端炔烃的偶联,然后通过铜介导的环异构化,可得到高收率的呋喃。这种方法可以组装2,3,4-和2,3,5-三取代的呋喃,以及2,3,4,5-四取代的呋喃。