Mesoporous Silica MCM-41 Supported<i>N</i>-Heterocyclic Carbene-Pd Complex for Heck and Sonogashira Coupling Reactions
作者:Shaheen M. Sarkar、Mashitah Mohd Yusoff、Md. Lutfor Rahman
DOI:10.1002/jccs.201400196
日期:2015.1
Heterocyclic carbene‐Pd complex was anchoredonto the mesoporoussilicaMCM‐41 which exhibits high catalytic activity in Heck reaction under phosphine free reaction conditions for the reaction of iodo/bromoarenes with olefinic compounds such as butyl acrylate, isopropyl acrylate and styrene. This catalytic system also showed high activity for Sonogashira coupling reaction of various aryl halides under
Heck, Suzuki and Sonogashira cross-coupling reactions using ppm level of SBA-16 supported Pd-complex
作者:Shaheen M. Sarkar、Md. Lutfor Rahman、Mashitah Mohd Yusoff
DOI:10.1039/c4nj02319f
日期:——
supported 1,2-diaminocyclohexane Pd-complex (100–500 mol ppm of Pd) was found to be an efficientcatalyst in the palladium-catalyzed Mizoroki–Heck, Suzuki–Miyaura and copper-freeSonogashiracross-couplingreactions of aryl halides under mild reaction conditions. The Pd-complex efficiently promoted all of these coupling reactions with appropriate coupling partners to afford the corresponding coupling products
HUANG, SHI-ZHEN;WEN, LIANG-WEI;HUANG, XIAN, SYNTH. COMMUN., 20,(1990) N7, C. 2579-2584
作者:HUANG, SHI-ZHEN、WEN, LIANG-WEI、HUANG, XIAN
DOI:——
日期:——
Copper-catalyzed α-selective C–H trifluoromethylation of acrylamides with TMSCF3
作者:Shang-Zheng Sun、Hui Xu、Hui-Xiong Dai
DOI:10.1016/j.cclet.2019.02.011
日期:2019.5
Abstract A copper-catalyzed α-selective C–H trifluoromethylation of acrylamides with TMSCF3 is described. A wide range of arenes and heteroarenes at the β-position of acrylamides are compatible with the reaction, affording the corresponding (E)-trifluoromethylated products in moderate to good yields. The reaction proceeded fast and can be completed within 30 min.