نتایج جستجو برای: recyclable

تعداد نتایج: 2844  

Journal: :Chemical communications 2014
R Gangadhara Chary G Dhananjaya K Vara Prasad S Vaishaly Y S S Ganesh Balakrishna Dulla K Shiva Kumar Manojit Pal

A ligand/additive/Pd-free Cu-mediated coupling/cyclization strategy afforded the first practical, one-pot and general approach towards synthesis of N-(un)substituted isoquinolin-1(2H)-ones. Both the catalyst and the solvent used are recyclable. The use of the Cu reagent in excess led to the unusual formation of regioisomeric and uncommon isoquinolin-1(4H)-ones.

2006
Harry Giles Kyoung-Hee Kim

Buildings are large consumers of energy. In the United States of America; they constitute over 33% of the total annual energy consumption, produce 35% of the total carbon dioxide emissions and attribute 40% of landfill wastes. The building industry is also a large consumer of non-renewable materials and this trend has escalated dramatically over the past century. It is essential that we find wa...

Journal: :IEEE Robotics and Automation Letters 2017

Journal: :Journal of the American Chemical Society 2017

Journal: :Advanced Synthesis & Catalysis 2021

The use of transition-metal complexes as photocatalysts have allowed the performance diverse organic transformations in an outstanding manner, characterized not only by high yields, TOF, and selectivity values, but also modulating providing access to novel molecular structures that, without them, would be difficult if impossible. However, one biggest concerns regarding these relies on difficult...

Journal: :Chemical communications 2015
Qihao Yang Yu-Zhen Chen Zhiyong U Wang Qiang Xu Hai-Long Jiang

The hydrogenation efficiency of nitro compounds was found to be greatly boosted by coupling with dehydrogenation of ammonia borane. The Pd@MIL-101 with tiny Pd NPs is exceptionally efficient and recyclable in the tandem reactions and diverse nitro compounds can be selectively reduced to the corresponding amines in 1.5-5 min with quantitative yields.

Journal: :Chemical communications 2014
Gil A B Gonçalves Sónia M G Pires Mário M Q Simões M Graça P M S Neves Paula A A P Marques

Three-dimensional graphene oxide foam (3DGO) was found to be a highly efficient and recyclable catalyst for the oxidation of thioanisole. We found that 3DGO is more efficient than 2DGO, and that the efficiency increases with the number of cycles for 3DGO, in contrast to the 2D counterpart.

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