A facile approach to highly functional trisubstituted furans via intramolecular Wittig reactions
作者:Ko-Wei Chen、Siang-en Syu、Yeong-Jiunn Jang、Wenwei Lin
DOI:10.1039/c0ob00912a
日期:——
An efficient and mild synthesis of trisubstituted furans, starting from α,β-unsaturated ketones, tributylphosphine, and acyl chlorides, is described. The strategy employs the intramolecular Wittig protocol as a key step to install the crucial furan ring, leading to a wide variety of highly functional furans in one step.
Selenium Dioxide‐Promoted Regioselective Synthesis of Multi‐Substituted Furans from Terminal Alkynes and Aldehydes
作者:Yafeng Liu、Fengkai Sun、Zhenyu An、Man Miao、Xin Guo、Chonglong Li
DOI:10.1002/adsc.202300964
日期:2024.1.9
A SeO2-mediated regioselective synthesis of multi-substituted furans has been achieved through intermolecular cyclization of terminalalkynes with aldehydes. The developed methodology used commercially available starting materials and afforded various 2,3,5-triarylfurans.