selective hydrogenation
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Eng ◽  
2022 ◽  
Vol 3 (1) ◽  
pp. 60-77
Nobutaka Yamanaka ◽  
Shogo Shimazu

Metallic Ni shows high activity for a variety of hydrogenation reactions due to its intrinsically high capability for H2 activation, but it suffers from low chemoselectivity for target products when two or more reactive functional groups are present on one molecule. Modification by other metals changes the geometric and electronic structures of the monometallic Ni catalyst, providing an opportunity to design Ni-based bimetallic catalysts with improved activity, chemoselectivity, and durability. In this review, the hydrogenation properties of these catalysts are described starting from the typical methods of preparing Ni-based bimetallic nanoparticles. In most cases, the reasons for the enhanced catalysis are discussed based on the geometric and electronic effects. This review provides new insights into the development of more efficient and well-structured non-noble metal-based bimetallic catalytic systems for chemoselective hydrogenation reactions.

Synthesis ◽  
2022 ◽  
Florencia Parpal ◽  
Ana Paula Paullier ◽  
Enrique Pandolfi ◽  
Viviana Lucía Heguaburu

The synthesis of jasmone and related jasmonoids and pyrethroids is described. These types of compounds play a defensive role in plants, and share a cyclopentenone common core, with variations in its side chains. Jasmone, cinerone, allylrethrone and derivatives are synthesized through π-allyl palladium cross coupling of stannane derivatives. By selective hydrogenation dihydrojasmone and dihydrocinerone are also synthesized.

Nano Research ◽  
2022 ◽  
Yulin Yang ◽  
Tong Yang ◽  
Tingting Song ◽  
Jun Zhou ◽  
Jianwei Chai ◽  

Jian-guo Wang ◽  
Qiang Zhou ◽  
Zijiang Zhao ◽  
Zihao Yao ◽  
Zhongzhe Wei ◽  

Modulation of the metal-support interaction plays a key role in many important chemical reactions. Here, by adjusting the reduction method of the catalyst and introducing oxygen vacancies in TiO2 to...

2022 ◽  
pp. 101-115
Xiaofang Liu ◽  
Wenfeng Wu ◽  
Can Li ◽  
Hu Li

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