Ag(I)-或Ag(I)-Au(I)催化的炔醇和α-酮酸酯级联环化合成Furo [2,3- b ]吡喃-2-酮
摘要:
已经开发了Ag(I)-或Ag(I)-Au(I)催化的炔烃(5-己炔-1-醇系统)与α-酮酸酯的级联环化反应,涉及双活化过程(π和σ)。第一次。该反应通过炔醇的环异构化进行,得到6-内-烯醇醚,然后用α-酮酸酯环化,以良好的产率提供呋喃[2,3 - b ]吡喃-2-酮。所有产品的化学结构均通过单晶X射线分析和类似物严格确认。
Furo[2,3-b]pyran-2-one compounds and process for preparation thereof
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US10941155B2
公开(公告)日:2021-03-09
The present invention discloses a novel furo[2,3-b]pyran-2-one compound of formula (I) and a single step process for the preparation of furo[2,3-b]pyran-2-ones using Lewis acid-promoted cascade annulation of alkynols and α-ketoesters.
FURO[2,3-b]PYRAN-2-ONE COMPOUNDS AND PROCESS FOR PREPARATION THEREOF
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20200165263A1
公开(公告)日:2020-05-28
The present invention discloses a novel furo[2,3-b]pyran-2-one compound of formula (I) and a single step process for the preparation of furo[2,3-b]pyran-2-ones using Lewis acid-promoted cascade annulation of alkynols and α-ketoesters.