An inexpensive and highly stable ligand 1,4-bis(2-hydroxy-3,5-di-tert-butylbenzyl)piperazine for Mizoroki–Heck and room temperature Suzuki–Miyaura cross-coupling reactions
作者:Sasmita Mohanty、D. Suresh、Maravanji S. Balakrishna、Joel. T. Mague
DOI:10.1016/j.tet.2007.10.081
日期:2008.1
characterized. The palladium catalyst was formed by combination of 1 with [Cl2Pd(COD)] in a ratio of 1:1, tested in the Suzuki–Miyaura and Mizoroki–Heck cross-couplingreactions. Coupling of a variety of aryl bromides with phenylboronic acid using methanol as solvent at room temperature, or at 60 °C, gave generally high yields of coupled products. Coupling of aryl chlorides with organoboron reagent at
The catalytic activity of two CNC palladium pincer complexes is evaluated in two fundamental CC bond‐forming reactions: MizorokiHeck and Sonogashira cross‐couplings. After several optimization attempts and a brief comparison with a PCNpincercatalyst, a number of arylated alkenes and diarylethynes are synthesized by procedures based on the catalytic use of the above mentioned CNC Pd pincers in H2O
Pd doped SiO<sub>2</sub> nanoparticles: an efficient recyclable catalyst for Suzuki, Heck and Sonogashira reactions
作者:Deepali A. Kotadia、Urmila H. Patel、Sahaj Gandhi、Saurabh S. Soni
DOI:10.1039/c4ra01813c
日期:——
doped silica (Pd/SiO2) mesoporous material was synthesized via the sol–gel route using the P123 triblock copolymer as a structure directing agent. Pd/SiO2 was efficiently used as a catalyst for Suzuki, Heck and Sonogashira reactionsundermicrowaveirradiation. The catalyst exhibited high activity for all the couplingreactions and can be recycled nine times without a significant loss in its catalytic activity
A convenient, efficient and reusable N-heterocyclic carbene-palladium(<scp>ii</scp>) based catalyst supported on magnetite for Suzuki–Miyaura and Mizoroki–Heck cross-coupling reactions
作者:Vishal Kandathil、Bradley D. Fahlman、B. S. Sasidhar、Shivaputra A. Patil、Siddappa A. Patil
DOI:10.1039/c7nj01876b
日期:——
NO2-NHC-Pd@Fe3O4 nanomagnetic catalyst showed excellent catalytic activity in both Suzuki–Miyaura and Mizoroki–Heck cross-coupling reactions for various substrates under mild reaction conditions. Recovery of the NO2-NHC-Pd@Fe3O4 nanomagnetic catalyst from the reaction mixture was easily accomplished by applying an external magnet. The recovered NO2-NHC-Pd@Fe3O4 nanomagnetic catalyst exhibited very good catalytic
在目前的工作中,一种新型的磁性纳米颗粒负载的N-杂环卡宾-钯(II)(NO 2 -NHC-Pd @ Fe 3 O 4)纳米磁性催化剂是通过在有氧条件下使用廉价的化学药品通过简便的多步合成法合成的。NO 2 -NHC-Pd @ Fe 3 O 4纳米磁性催化剂通过各种分析技术进行了表征,例如衰减全反射红外光谱(ATR-IR),电感耦合等离子体原子发射光谱(ICP-AES),能量色散X射线光谱(EDS),场发射扫描电子显微镜(FESEM),透射电子显微镜(TEM),X射线粉末衍射(XRD),热重分析(TGA)和Brunauer–Emmett–Teller表面积分析(BET)。合成的NO 2 -NHC-Pd @ Fe 3 O 4纳米磁性催化剂在轻度反应条件下,在各种基材的Suzuki-Miyaura和Mizoroki-Heck交叉偶联反应中均表现出出色的催化活性。NO 2 -NHC-Pd @ Fe
Magnetite tethered mesoionic carbene‐palladium (II): An efficient and reusable nanomagnetic catalyst for Suzuki‐Miyaura and Mizoroki‐Heck cross‐coupling reactions in aqueous medium
作者:Manjunatha Kempasiddhaiah、Vishal Kandathil、Ramesh B. Dateer、Balappa S. Sasidhar、Shivaputra A. Patil、Siddappa A. Patil
DOI:10.1002/aoc.4846
日期:2019.5
prepared MNPs‐MIC‐Pd nanomagnetic catalyst was used to catalyze the Suzuki–Miyaura and Mizoroki–Heck cross‐couplingreactions and exhibited excellent catalytic activity for various substrates under mild reaction conditions. Moreover, MNPs‐MIC‐Pd nanomagnetic catalyst could be easily and rapidly recovered by applying an external magnet. The recovered MNPs‐MIC‐Pd nanomagnetic catalyst exhibited very good