Results 51 to 60 of about 9,657 (231)

Copper-Catalyzed Oxyvinylation of Diazo Compounds [PDF]

Organic Letters, 2020
A copper(I)-catalyzed vinylation of diazo compounds with vinylbenziodoxolone reagents (VBX) as partners is reported. The transformation tolerates diverse functionalities on both reagents delivering polyfunctionalized vinylated products. The strategy was successfully extended to a three-component/intermolecular version with alcohols.
Guillaume Pisella, Alec Gagnebin, Jerome Waser   +2 more
openaire   +3 more sources

Copper-Catalyzed Insertion of Diazo Compounds into Vinyl Hypervalent Iodine Reagents to Generate Allylic Esters

, 2019
An unprecedented copper(I)-catalyzed vinylation of (donor)-acceptor diazo compounds with VinylBenziodoXolone reagents (VBX) as partners is reported. The transformation tolerates variation of both donor- and acceptor substituents on the diazo compounds ...
Guillaume, Pisella, Guillaume Pisella (6506243), Jerome, Waser, Jerome Waser (5432336), Alec Gagnebin (6506244), Alec, Gagnebin   +5 more
core   +1 more source

Pyridine Scaffolds, Phenols and Derivatives of Azo Moiety: Current Therapeutic Perspectives

Molecules, 2021
Synthetic heterocyclic compounds have incredible potential against different diseases; pyridines, phenolic compounds and the derivatives of azo moiety have shown excellent antimicrobial, antiviral, antidiabetic, anti-melanogenic, anti-ulcer, anticancer ...
Tehreem Tahir, Muhammad Ashfaq, Muhammad Saleem, Muhammad Rafiq, Mirza Imran Shahzad, Katarzyna Kotwica-Mojzych, Mariusz Mojzych   +6 more
doaj   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

Advanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour, Younes Mousazade, Simon Diel, Shilendra Kumar Sharma, Tisita Das, Nathália C. Verissimo, Thomas Fischer, Ziyaad Aytuna, Andreas Lichtenberg, Sudip Chakraborty, Marcel Risch, Sanjay Mathur   +11 more
wiley   +1 more source

Quantification of the electrophilic reactivities of nitroalkenes [PDF]

, 2012
While a large variety of nucleophiles (N and sN) have been characterized according to eq 1.3, the number of E parameters for electrophiles, and specifically for different classes of Michael acceptors remains relatively small.
Zenz, Ivo
core  

Development of Novel Methodology for the in situ Preparation of Halodiazo Compounds and Investigation of Reactivities of α-Onium Diazo Compounds

, 2014
Diazo compounds have great synthetic potential as versatile reagents in organic synthesis. The formation of Rh(II) carbenoids from diazo compounds allows the selective formation of C-C and C-heteroatom bonds and the introduction of functionality into ...
Schnaars, Christian
core   +1 more source

Traditional and New methods for the Preparation of Diazocarbonyl Compounds

Anais da Academia Brasileira de Ciências, 2018
For many years diazocarbonyl compounds have been studied due to their versatility and usability in many chemical transformations. In this review, we summarize the traditional methods to prepare these compounds as well as the new methods and recent ...
ANTONIO C.B. BURTOLOSO, PATRÍCIA B. MOMO, GRAZIELE L. NOVAIS   +2 more
doaj   +1 more source

Water‐Compatible SuFEx‐Active Diazonium Linchpin Platform for Rapid Modular Diversification and On‐DNA Functionalization

Advanced Functional Materials, EarlyView.
Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong, Dong Hyeon Kim, Yujin Lim, Yongseok Kwon, Sangkyu Lee, Han Yong Bae   +5 more
wiley   +1 more source

Novas metodologias eficientes para a reação de transferência de diazo: preparação de y-azido-a-diazo-b-ceto éster e aplicações na síntese de amidas e indóis [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Neste trabalho foram desenvolvidas novas metodologias para a obtenção de diazo compostos 1,3 ...
Dutra, Luiz Gustavo
core  

Synthesis of Tetrasubstituted Allenes via Palladium-Catalyzed Cross-Coupling of Vinyl Bromides with Diazo Compounds

, 2019
A highly efficient palladium-catalyzed cross-coupling of 2,2-diarylvinyl bromides with diazo compounds was developed, providing a convenient approach for the synthesis of tetrasubsti-tuted allenes. Both aryl diazo carbonyl compounds and N-tosylhydrazones
Chen-Guo, Feng, Ge, Zhang, Meng-Yao, Li, Fang, Zhang, Guo-Qiang, Lin, Shu-Sheng, Zhang, Ze-Jian, Xue, Bin-Bin, Zhu   +7 more
core   +1 more source