83575-55-7Relevant academic research and scientific papers
The catalytic activity of Zn(II) and Mn(II) organometallic complexes
Mei, Luo,Yan, Li Xiao,Wei, Chen,Hai, Zhang Jia
, p. 2715 - 2721 (2013)
Zn(II) and Mn(II) organometallic complexes I and II were first used to catalyze the cyanosilylation reaction, and good catalytic results (24-99 %) were achieved. The catalytic activity of the complexes was determined by 1H NMR.
Zirconium-based MOF catalyst with double active sites and preparation method and application thereof
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Paragraph 0071; 0073; 0075-0079, (2021/06/09)
The invention discloses a zirconium-based MOF catalyst loaded with double active sites as well as a preparation method and an application of the zirconium-based MOF catalyst. The method comprises thefollowing steps: adding zirconium salt and an organic ligand into an organic solvent, taking organic acid as a regulator, and carrying out self-assembly reaction to obtain a metal organic framework; adding salicylaldehyde for aldehyde amine condensation to obtain chelating coordination sites, adding palladium salt, and performing coordination through an impregnation method; reducing the obtained MOF in hydrogen to obtain an MOF loaded with Pd nanoparticles; reacting MOF and zinc salt in an organic solvent, and obtaining the catalyst. The Pd-Zn-coated UiO-68-NH2-CH3 catalyst synthesized by thepreparation method disclosed by the invention has efficient catalytic activity in a tandem alcohol oxidation/aldehyde cyanosilylation reaction. According to the catalyst, a metal organic framework UiO-68-NH2-CH3 is constructed, Pd nanoparticles and Zn are loaded by taking the metal organic framework UiO-68-NH2-CH3 as a carrier, the loading capacity of the Pd nanoparticles is 4-8wt%, and the loading capacity of the Zn is 3-5wt%.
Cyanosilylation of carbonyl compounds catalyzed by half-sandwich (η6-p-cymene) Ruthenium(II) complexes bearing heterocyclic hydrazone derivatives
Alves, Luis G.,Bharathi, Madheswaran,Indira, Sekar,Martins, Ana M.,Shanmuga Bharathi, Kuppannan,Vinoth, Govindasamy
, (2020/10/02)
A new class of half-sandwich (?6-p-cymene) ruthenium(II) complexes supported by heterocyclic hydrazone derivatives of general formula [Ru(?6-p-cymene)(Cl)(L)] where L represents N’-((1H-pyrrol-2-yl)methylene)furan-2-carbohydrazide (L
Application of an Electrochemical Microflow Reactor for Cyanosilylation: Machine Learning-Assisted Exploration of Suitable Reaction Conditions for Semi-Large-Scale Synthesis
Sato, Eisuke,Fujii, Mayu,Tanaka, Hiroki,Mitsudo, Koichi,Kondo, Masaru,Takizawa, Shinobu,Sasai, Hiroaki,Washio, Takeshi,Ishikawa, Kazunori,Suga, Seiji
supporting information, p. 16035 - 16044 (2021/09/02)
Cyanosilylation of carbonyl compounds provides protected cyanohydrins, which can be converted into many kinds of compounds such as amino alcohols, amides, esters, and carboxylic acids. In particular, the use of trimethylsilyl cyanide as the sole carbon source can avoid the need for more toxic inorganic cyanides. In this paper, we describe an electrochemically initiated cyanosilylation of carbonyl compounds and its application to a microflow reactor. Furthermore, to identify suitable reaction conditions, which reflect considerations beyond simply a high yield, we demonstrate machine learning-assisted optimization. Machine learning can be used to adjust the current and flow rate at the same time and identify the conditions needed to achieve the best productivity.
Silyl Cyanopalladate-Catalyzed Friedel-Crafts-Type Cyclization Affording 3-Aryloxindole Derivatives
Ece, Hamdiye,Tange, Yuji,Yurino, Taiga,Ohkuma, Takeshi
supporting information, p. 935 - 939 (2021/02/22)
3-Aryloxindole derivatives were synthesized through a Friedel-Crafts-type cyclization. The reaction was catalyzed by a trimethylsilyl tricyanopalladate complex generated in situ from trimethylsilyl cyanide and Pd(OAc) 2. Wide varieties of diethyl phosphates derived from N -arylmandelamides were converted almost quantitatively into oxindoles. When N, N -dibenzylamide was used instead of an anilide substrate, a benzo-fused δ-lactam was obtained. An oxindole product was subjected to substitution reactions to afford 3,3-diaryloxindoles with two different aryl groups.
An uncoordinated tertiary nitrogen based tricarboxylate calcium network with Lewis acid-base dual catalytic sites for cyanosilylation of aldehydes
Wang, Ying-Xia,Wang, Hui-Min,Meng, Pan,Song, Dong-Xia,Hou, Juan-Juan,Zhang, Xian-Ming
, p. 1740 - 1745 (2021/02/16)
The design and utilization of dual sites for synergistic catalysts has been recognised as an efficient method towards high-efficiency catalysis in the cyanosilylation of aldehydes, which gives key intermediates for the synthesis of a number of valuable na
Organo-catalyzed Michael addition of 2-fluoro-2-arylacetonitriles
Chen, De-Yin,Song, Shuai,Chen, Ling-Yan,Ren, Xinfeng,Li, Ya
supporting information, (2021/03/01)
An efficient synthesis of a variety of 2-arylacetonitriles containing a fluorinated stereogenic center through organo-catalyzed Michael addition reaction of 2-fluoro-2-arylacetonitriles has been developed. This protocol uses a cheap organocatalyst (DBU) and has a broad substrate scope: α, β-unsaturated ketones, esters, nitriles and sulfones were all successfully reacted. Importantly, water proved to be a good solvent for this reaction.
Conjugated Bis-Guanidines (CBGs) as β-Diketimine Analogues: Synthesis, Characterization of CBGs/Their Lithium Salts and CBG Li Catalyzed Addition of B?H and TMSCN to Carbonyls
Peddarao, Thota,Baishya, Ashim,Sarkar, Nabin,Acharya, Rudresh,Nembenna, Sharanappa
, p. 2034 - 2046 (2021/05/27)
Herein, we report a range of conjugated bis-guanidines (CBGs) L [L={(ArHN)(ArHN)C=N?C=(NAr)(NHAr)}; Ar=2, 6-Me2 - C6H3, (1), 2, 4, 6-Me3?C6H2, (2), 2, 6-Et2?C6H3
Pyrene carboxylate ligand based coordination polymers for microwave-assisted solvent-free cyanosilylation of aldehydes
Da Silva, M. Fátima C. Guedes,Karmakar, Anirban,Paul, Anup,Pombeiro, Armando J. L.,Sabatini, Elia Pantanetti
, (2021/06/11)
The new coordination polymers (CPs) [Zn(μ-1κO1:1κO2-L)(H2O)2]n·n(H2O) (1) and [Cd(μ4-1κO1O2:2κN:3,4κO3-L)(H2O)]n·n(H2
Alkoxo bridged heterobimetallic CoIIISnIV compounds with face shared coordination octahedra: Synthesis, crystal structure and cyanosilylation catalysis
Hazra, Susanta,Karmakar, Anirban,Pombeiro, Armando J. L.,da Silva, M. Fátima C. Guedes
supporting information, (2021/07/13)
The self-assembly reaction of the Schiff base N,N’-ethylenebis(2-hydroxyacetophenoneimine) (H2L), CoCl2··6H2O and [SnPh2Cl2] led to the alkoxo-bridged heteroorganometallic CoIIISnIV/s
