期刊
MOLECULAR CATALYSIS
卷 515, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mcat.2021.111928
关键词
Pd-NHC; SBA-15; Nanocatalyst; Suzuki-Miyaura; Biaryls
A periodic mesoporous organosilica material functionalized with a bis-NHC palladium pincer complex was synthesized by sol-gel process. The resulting hybrid nanomaterial exhibited excellent activity and stability as a catalyst for Suzuki-Miyaura cross-coupling, showing no Pd contamination in the products and verifying the reaction to be truly heterogeneous.
A periodic mesoporous organosilica material functionalized with a bis-NHC palladium pincer complex was synthesized by sol-gel process. The resulting organic-inorganic hybrid nano material was characterized by XRD, TEM, SEM, TGA analysis, and BET measurements. The hybrid nanomaterial act as highly active catalysts for the Suzuki-Miyaura cross-coupling between deactivated aryl chlorides and phenylboronic acid under heterogeneous and aerobic conditions. The supported catalyst exhibited excellent activity and stability and it could be reused at least ten times without any significant loss of activity. Furthermore, the SEM image revealed that high order mesostructure of the recycled nanocatalyst. After ninth run, catalyst showed almost similar structure as compared to the fresh catalyst. ICP-AES detected no Pd contamination in the products, and leaching tests verified that the reaction was truly heterogeneous.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据