Heterogeneous gold(I)-catalyzed three-component reaction of aldehydes, alkynes, and orthoformates toward propargyl ethers
作者:Jiajun Zeng、Feiyan Yi、Mingzhong Cai
DOI:10.1080/00397911.2020.1761391
日期:2020.7.2
Abstract A novel and efficient heterogeneous gold(I)-catalyzed three-component reaction of aldehydes, alkynes, and orthoformates has been developed that proceeds smoothly in dichloroethane (DCE) at 83 °C in the presence of 5 mol% magnetic nanoparticles-anchored phosphine gold(I) complex (Fe3O4@SiO2-P-AuOTf) and offers a general and practical approach for the preparation of a variety of propargyl ethers
摘要 开发了一种新型高效的多相金 (I) 催化的醛、炔和原甲酸酯的三组分反应,该反应在 83 °C 下在二氯乙烷 (DCE) 中在 5 mol% 磁性纳米颗粒锚定的膦存在下顺利进行。金(I)配合物(Fe3O4@SiO2-P-AuOTf)并提供了一种通用且实用的方法来制备各种具有良好产率的炔丙基醚。这种多相金 (I) 催化剂可以通过简单地施加外部磁场轻松回收,并且至少循环使用 8 次,而催化效率没有任何明显降低。图形概要