Visible light induced the high-efficiency spirocyclization reaction of propynamide and thiophenols via recyclable catalyst Pd/ZrO2
作者:Nannan Zhang、Hangdong Zuo、Chen Xu、Junyi Pan、Jun Sun、Cheng Guo
DOI:10.1016/j.cclet.2019.06.008
日期:2020.2
Abstract A new method for the synthesis of 3-thioazaspiro[4,5]trienones was developed using Pd nanoparticle catalysts, which are highly efficient, environmentally friendly and recyclable. Alkynes and thiophene phenols are effectively cyclized by Pd/ZrO2 catalyst under visible light irradiation. The present protocol simply utilizes visible light as the safe and ecofriendly energy source, and the Pd/ZrO2
摘要利用Pd纳米粒子催化剂,开发了一种高效,环保,可回收的3-硫代氮杂[4,5]三烯酮合成新方法。在可见光照射下,Pd / ZrO2催化剂可有效地使炔烃和噻吩酚环化。本协议只是简单地利用可见光作为安全,环保的能源,而Pd / ZrO2纳米复合材料作为光催化剂为在中等条件下以高产率获得各种3-thioazaspiro [4,5]三烯酮提供了一种简单实用的方法。