Zhao Lian-Biao, Guan Zheng-Hui, Han Yao, Xie Yong-Xin, He Sheng, Liang Yong-Min
State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PRC.
J Org Chem. 2007 Dec 21;72(26):10276-8. doi: 10.1021/jo7019465. Epub 2007 Nov 28.
Copper-catalyzed [4 + 1] cycloaddition reaction of alpha,beta-acetylenic ketones with alpha-diazo esters offers an efficient, direct route to highly substituted furans. The reaction conditions and the scope of the process are examined, and a possible mechanism is proposed.
铜催化的α,β-炔酮与α-重氮酯的[4 + 1]环加成反应为合成高度取代的呋喃提供了一条高效、直接的途径。本文考察了该反应的条件和适用范围,并提出了一种可能的反应机理。