ChemInform Abstract: Highly Chemoselective Hydrogenation of Active Benzaldehydes to Benzyl Alcohols Catalyzed by Bimetallic Nanoparticles.

ChemInform ◽  
2016 ◽  
Vol 47 (12) ◽  
pp. no-no
Author(s):  
Chulong Liu ◽  
Hailin Bao ◽  
Dingsheng Wang ◽  
Xinyan Wang ◽  
Yadong Li ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Benzyl Alcohols ◽  
Chemoselective Hydrogenation

Highly chemoselective hydrogenation of active benzaldehydes to benzyl alcohols catalyzed by bimetallic nanoparticles

2015 ◽  
Vol 56 (46) ◽  
pp. 6460-6462 ◽  
Author(s):  
Chulong Liu ◽  
Hailin Bao ◽  
Dingsheng Wang ◽  
Xinyan Wang ◽  
Yadong Li ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Benzyl Alcohols ◽  
Chemoselective Hydrogenation

scholarly journals Selective Hydrogenation Properties of Ni-Based Bimetallic Catalysts

Eng ◽  
2022 ◽  
Vol 3 (1) ◽  
pp. 60-77
Author(s):  
Nobutaka Yamanaka ◽  
Shogo Shimazu
Keyword(s):  
High Activity ◽  
Selective Hydrogenation ◽  
Electronic Structures ◽  
Bimetallic Catalysts ◽  
Bimetallic Nanoparticles ◽  
Ni Catalyst ◽  
Electronic Effects ◽  
Catalytic Systems ◽  
Chemoselective Hydrogenation ◽  
Hydrogenation Reactions

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.

ChemInform Abstract: Chemoselective Hydrogenation of Nitrobenzyl Ethers to Aminobenzyl Ethers Catalyzed by Palladium-Nickel Bimetallic Nanoparticles.

ChemInform ◽  
2016 ◽  
Vol 47 (11) ◽  
pp. no-no
Author(s):  
Wenwen Chen ◽  
Hailin Bao ◽  
Dingsheng Wang ◽  
Xinyan Wang ◽  
Yadong Li ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Chemoselective Hydrogenation

Chemoselective hydrogenation of nitrobenzyl ethers to aminobenzyl ethers catalyzed by palladium–nickel bimetallic nanoparticles

Tetrahedron ◽  
2015 ◽  
Vol 71 (49) ◽  
pp. 9240-9244 ◽  
Author(s):  
Wenwen Chen ◽  
Hailin Bao ◽  
Dingsheng Wang ◽  
Xinyan Wang ◽  
Yadong Li ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Chemoselective Hydrogenation

Efficient hydrogenation of aromatic aldehydes to corresponding benzyl alcohols over Ni–B/MIL-101

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33564-33568 ◽  
Author(s):  
Xiangjin Kong ◽  
Junhai Liu
Keyword(s):  
Liquid Phase ◽  
Amorphous Alloy ◽  
Aromatic Aldehydes ◽  
Impregnation Method ◽  
Benzyl Alcohols ◽  
Catalytic Activities ◽  
Chemoselective Hydrogenation ◽  
Alloy Particles ◽  
Simple Reduction

Ni–B amorphous alloy particles incorporated onto MIL-101 were prepared by a simple reduction impregnation method, and exhibited excellent catalytic activities for liquid-phase chemoselective hydrogenation of aromatic aldehydes to corresponding benzyl alcohols.

Green synthesis of mixed metallic nanoparticles using room temperature self-assembly

2017 ◽  
Vol 13 (2) ◽  
pp. 4671-4677 ◽  
Author(s):  
A. M. Abdelghany ◽  
A.H. Oraby ◽  
Awatif A Hindi ◽  
Doaa M El-Nagar ◽  
Fathia S Alhakami
Keyword(s):  
Self Assembly ◽  
Metallic Nanoparticles ◽  
Room Temperature ◽  
Bimetallic Nanoparticles ◽  
Reduction Process ◽  
Nano Particles ◽  
Nano Structure ◽  
Small Shift ◽  
Molar Ratios ◽  
Vis Spectroscopy

Bimetallic nanoparticles of silver (Ag) and gold (Au) were synthesized at room temperature using Curcumin. Reduction process of silver and gold ions with different molar ratios leads to production of different nanostructures including alloys and core-shells. Produced nanoparticles were characterized simultaneously with FTIR, UV/vis. spectroscopy, transmission electron microscopy (TEM), and Energy-dispersive X-ray (EDAX). UV/vis. optical absorption spectra of as synthesized nanoparticles reveals presence of surface palsmon resonance (SPR) of both silver at (425 nm) and gold at (540 nm) with small shift and broadness of gold band after mixing with resucing and capping agent in natural extract which suggest presence of bimetallic nano structure (Au/Ag). FTIR and EDAX data approve the presence of bimetallic nano structure combined with curcumin extract. TEM micrographs shows that silver and gold can be synthesized separately in the form of nano particles using curcumin extract. Synthesis of gold nano particles in presence of silver effectively enhance and control formation of bi-metallic structure.

One-Pot Synthesis and Conformational Analysis of 6-Membered Cyclic Iodonium Salts

2020 ◽  
Author(s):  
Lucien Caspers ◽  
Julian Spils ◽  
Mattis Damrath ◽  
Enno Lork ◽  
Boris Nachtsheim
Keyword(s):  
Conformational Analysis ◽  
Bronsted Acids ◽  
One Pot ◽  
Benzyl Alcohols ◽  
Iodonium Salts ◽  
Efficient Approach ◽  
One Pot Synthesis ◽  
Diaryliodonium Salts

In this article we describe an efficient approach for the synthesis of cyclic diaryliodonium salts. The method is based on benzyl alcohols as starting materials and consists of an Friedel-Crafts-arylation/oxidation sequence. Besides a deep optimization, particluar focusing on the choice and ratios of the utilized Bronsted-acids and oxidants, we explore the substrate scope of this transformation. We also discuss an interesting isomerism of cyclic iodonium salts substituted with aliphatic substituents at the bridge head carbon. <br>

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