A miniflow system for oxidative cyclization of alkenols with Oxone was developed. Thus, the oxidative cyclization of (Z)- and (E)-alkenols in i-PrOH with an aqueous solution of Oxone proceeded smoothly and safely in a PTFE tube without any exogenous catalytic species, and was subsequently quenched in a flow-reaction manner to afford the corresponding furanyl and pyranyl carbinols quantitatively within 5 or 10 min of residence time.
开发了一种使用Oxone进行烯醇氧化环化的小流量系统。因此,(
Z)-和(
E)-烯醇在
-PrOH中与Oxone的
水溶液在P
TFE管中顺利、安全地进行氧化环化,无需任何外源催化物,并随后以流动反应方式迅速熄灭,在5或10分钟的停留时间内定量地得到相应的
呋喃基和
吡喃基羟基化合物。