Inside Cover: Arylation of N -Methyl-2-oxindole with Arylboronic Acids in Water Catalyzed by Palladium(II) Pincer Complexes with a Low Catalyst Loading (ChemCatChem 6/2017)

ChemCatChem ◽  
2017 ◽  
Vol 9 (6) ◽  
pp. 900-900
Author(s):  
Arumugam Vignesh ◽  
Werner Kaminsky ◽  
Nallasamy Dharmaraj
Catalysts ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 773 ◽  
Author(s):  
Luca Piccirilli ◽  
Danielle Lobo Justo Pinheiro ◽  
Martin Nielsen

Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.


RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11758-11762 ◽  
Author(s):  
Anindita Dewan ◽  
Pankaj Bharali ◽  
Utpal Bora ◽  
Ashim Jyoti Thakur

The in situ generated PdNPs show excellent catalytic activity in Suzuki–Miyaura cross coupling reaction of electronically diversified arylbromides and arylboronic acids in water at room temperature with low catalyst loading.


Synlett ◽  
2020 ◽  
Author(s):  
Tomohiro Yasukawa ◽  
Shu Kobayashi ◽  
Zhiyuan Zhu ◽  
Yasuhiro Yamashita

Polysilane/alumina-supported palladium nanoparticle catalyzed carbonylative Suzuki–Miyaura coupling reactions under ligand-free conditions have been developed to synthesize diaryl ketones. High yields and selectivities were achieved even with low catalyst loading under atmospheric pressure of CO gas. A variety of aryl iodides and arylboronic acids could be utilized to afford the diaryl ketones in excellent yields. Moreover, the ligand-free immobilized palladium nanoparticles could be recovered by simple filtration and the catalytic activity could be maintained for several runs.


Author(s):  
Long Chen ◽  
Shi-Lu Zheng ◽  
Yun-Xiang Zou ◽  
Zhong Wen ◽  
Jiafu Lin ◽  
...  

Facile synthesis of 2-phosphorylated 2H-chromenes has been accomplished herein via a Y(OTf)3-catalyzed dehydrative coupling of 2H-chromene hemiacetals with P(O)-H compounds. This protocol features low catalyst loading, mild reaction conditions, broad...


RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 42912-42915
Author(s):  
Cheng Cheng ◽  
Ying-Xian Li ◽  
Xue-Min Jia ◽  
Ji-Quan Zhang ◽  
Yong-Long Zhao ◽  
...  

A mild and efficient enantioselective amination of 4-alkylisoquinoline-1,3(2H,4H)-dione derivatives was established and a broad range of amination products were prepared in excellent yields and ee values with low catalyst loading.


2018 ◽  
Vol 16 (1) ◽  
pp. 605-613 ◽  
Author(s):  
Vivek Srivastava

AbstractWe successfully synthesized Pd@MMT clay using a cation exchange process. We characterized all the synthesized Pd@MMT clays using sophisticated analytical techniques before testing them as a heterogeneous catalyst for the Mizoroki - Heck reaction (mono and double). The highest yield of the Mizoroki-Heck reaction product was recovered using thermally stable and highly reactive Pd@ MMT-1 clay catalyst in the functionalized ionic liquid reaction medium. We successfully isolated 2-aryl-vinyl phosphonates (mono-Mizoroki-Heck reaction product) and 2,2-diaryl-vinylphosphonates (double-Mizoroki-Heck reaction product) using aryl halides and dialkyl vinyl phosphonates in higher yields. The low catalyst loading, easy recovery of reaction product and 8 times catalyst recycling are the major highlights of this proposed protocol.


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