The silver-catalyzedcarbondioxideincorporation reaction into various propargylic amines proceeded under mild reaction conditions to obtain the corresponding oxazolidinone derivatives in high to ...
银催化的二氧化碳掺入各种炔丙胺反应在温和的反应条件下进行,得到相应的恶唑烷酮衍生物。
Silver-Catalyzed Carbon Dioxide Incorporation and Rearrangement on Propargylic Derivatives
A silver/DBU catalyst system was developed for the effective synthesis of cyclic carbonate and oxazolidinone from the reaction of CO2 with propargylicalcohols and propargylic amines, respectively,...
开发了一种银/DBU 催化剂体系,用于通过 CO2 分别与炔丙醇和炔丙胺反应有效合成环状碳酸酯和恶唑烷酮,...
Binuclear Tridentate Hemilabile Copper(I) Catalysts for Utilization of CO<sub>2</sub> into Oxazolidinones from Propargylic Amines
作者:Fei Chen、Sheng Tao、Qian-Qian Deng、Donghui Wei、Ning Liu、Bin Dai
DOI:10.1021/acs.joc.0c02065
日期:2020.12.4
Four binuclear tridentate copper(I) complexes were synthesized based on the trans effect of the hybrid ligands. The catalytic performance and behavior of the prepared copper(I) complexes were evaluated in the carboxylative cyclization of propargylic amines with CO2. The combined use of copper(I) complexes and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) provided a catalytic system for the synthesis of
基于杂合配体的反式作用,合成了四种双核三齿铜(I)配合物。制备的铜(I)配合物的催化性能和行为在炔丙基胺与CO 2的羧基环化反应中进行了评估。铜(I)配合物和1,5,7-三氮杂双环[4.4.0] dec-5-ene(TBD)的组合使用为从各种炔丙基胺和CO 2合成各种恶唑烷酮提供了催化体系在温和的反应条件下(室温—40°C和1 bar CO 2)。该协议成功的关键因素是使用具有N-杂环卡宾和氮供体之间具有半不稳定性质的铜配合物。NMR测量,密度泛函理论(DFT)计算以及有关镍配合物配位行为的先前报道均支持N-杂环卡宾与氮供体之间反式作用的存在。