Room-Temperature, Acid-Catalyzed [2+2] Cycloadditions: Suppression of Side Reactions by using a Flow Microreactor System
作者:Kei Kurahashi、Yoshiji Takemoto、Kiyosei Takasu
DOI:10.1002/cssc.201100373
日期:2012.2.13
Added value: The [2+2] cycloaddition of silyl enol ethers with α,β‐unsaturated esters, catalyzed by the superstrong acid triflic imide (Tf2NH), at room temperature in a flow microreactor system is reported. The micororeactor method achieves the [2+2] cycloaddition of unstable silyl enol ethers and acrylates, which is unsuccessful in batch reactors, even at room temperature.
附加值:据报道,在室温下,在流动微反应器系统中,超强酸三氟乙烯酰亚胺(Tf 2 NH)催化了甲硅烷基烯醇醚与α,β-不饱和酯的[2 + 2]环加成反应。微反应器方法实现了不稳定的甲硅烷基烯醇醚和丙烯酸酯的[2 + 2]环加成反应,即使在室温下,这在间歇反应器中也是不成功的。