Nano-Cu2O-Catalyzed Formation of CC and CO Bonds: One-Pot Domino Process for Regioselective Synthesis of α-Carbonyl Furans from Electron-Deficient Alkynes and 2-Yn-1-ols
作者:Hua Cao、Huanfeng Jiang、Gaoqing Yuan、Zhengwang Chen、Chaorong Qi、Huawen Huang
DOI:10.1002/chem.201000807
日期:2010.9.10
The formation of carbon–carbon and carbon–oxygen bonds continues to be an active and challenging field of chemical research. Nanoparticle catalysis has attracted considerable attention owing to its environmentally benign and high activity toward the reactions. Herein, we described a novel and effective nano‐Cu2O‐catalyzed one‐pot domino process for the regioselective synthesis of α‐carbonyl furans
碳-碳和碳-氧键的形成仍然是化学研究中一个活跃而充满挑战的领域。纳米颗粒催化由于其对环境的友好性和对反应的高活性而引起了相当大的关注。在这里,我们描述了一种新颖而有效的纳米铜2O催化的一锅多米诺过程,用于α-羰基呋喃的区域选择性合成。在大气压下存在空气的情况下,各种带有2-yn-1-ol的电子不足的炔烃顺利地以中等至良好的收率进行了该过程。尤其值得一提的是,新型2,4,5-三取代的3-炔基呋喃以极其直接的方式形成,而无需繁琐的逐步合成。此外,由于所有原料均易于获得,因此该方法可能允许合成更复杂的α-羰基呋喃。阐明机理的实验表明,该过程涉及卡宾中间体。