A5003849055- Catalytic Cross-Coupling Reactions
- Synthetic Organic Chemistry Methods
- Organoboron and organosilicon chemistry
- Organometallic Complex Synthesis and Catalysis
- Phytochemistry and Biological Activities
- Phytochemical Studies and Bioactivities
- Asymmetric Hydrogenation and Catalysis
- Phytochemistry and Bioactive Compounds
- Catalytic C–H Functionalization Methods
- Biochemical effects in animals
- Natural product bioactivities and synthesis
- Fluorine in Organic Chemistry
- Advanced biosensing and bioanalysis techniques
- Molecular spectroscopy and chirality
- Organic Electronics and Photovoltaics
- Nanomaterials for catalytic reactions
- Microbial Metabolites in Food Biotechnology
- Fuel Cells and Related Materials
- Ferrocene Chemistry and Applications
- Phytochemical and Pharmacological Studies
- DNA and Nucleic Acid Chemistry
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Synthesis and Properties of Aromatic Compounds
- RNA Interference and Gene Delivery
- Asymmetric Synthesis and Catalysis
Adam Mickiewicz University in Poznań
2010-2023
Faculty (United Kingdom)
2014-2017
Abstract Vinylsilanes are highly appealing and convenient chemical derivatives, as evidenced by the increasing number of synthetic transformations utilizing this class compounds. Herein, a new comprehensive cobalt‐catalyzed procedure has been developed enabling selective hydrosilylation internal aryl‐, alkyl‐, silylalkynes. Cobalt complexes bearing triazine‐based PNP pincer‐type ligands provide exclusive syn ‐addition primary well secondary silanes to C≡C bonds. As result, ( E )‐silylalkenes...
Geminal bis(silanes) are unique compounds with interesting properties. The most straightforward way to access them is double hydrosilylation of alkynes, which was established only recently. Previous articles about transition metal-catalysed show that terminal aryl alkynes a challenge. We report on cobalt(II) and iron(III) complexes the easy-to-synthesise N,N,N-tridentate hydrazone ligand being active precatalysts in Markovnikov-selective alkynes. influence structure potential role sodium...
The ruthenium hydride complex-catalyzed N-silylation of primary and secondary amines with substituted vinylsilanes, the general formula R(1)CH=CHSiR (where R(1) = H, Ph, n-Bu, Si(OEt)3), leading to formation a Si-N bond evolution olefin is described. Vinylsilane acts as silylative reagent hydrogen acceptor. Under optimum conditions, reaction offers an attractive route for synthesis silylamines. preliminary mechanistic view this novel silylation based on catalytic deuterium labeling...
The regioselectivity of metathesis reactions trisubstituted vinylsilanes H2C═CHSiR3 (SiR3 = SiCl3, SiCl2Me, SiClMe2, SiMe3, Si(OEt)3) with the second-generation ruthenium alkylidene complex has been studied theoretically, by density functional theory (DFT), and experimentally. DFT results indicate that cycloreversion is rate-determining step formation a thermodynamically stable methylidene PhCH═CHSiR3 generally preferred. However, process can be also governed relative stabilities...
Abstract Three series of substituted 1,3,4‐oxadiazoles were studied by 17 O NMR spectroscopy. Chemical shifts values correlated with empirical Hammett parameters as well calculated bond lengths and chemical shielding values. Copyright © 2011 John Wiley & Sons, Ltd.
Two new spirostane glycosides, chamaedrosides C (1) and C1 (2), two furostane E (4) E1 (5), furospirostane C2 (3) E2 (6), have been isolated from Veronica chamaedrys L. plants. Their structures were determined on the basis of chemical evidence extensive spectroscopic methods, including 1D- 2D-NMR experiments, as well MS analysis. The given compounds found for first time.
A ruthenium–hydride complex, [Ru(H)(Cl)(CO)(PCy<sub>3</sub>)<sub>2</sub>], was found to be active in the highly selective redistribution of primary and secondary amines bearing an α-hydrogen atom.
In the presence of<italic>N</italic><sup>α</sup>-acetyllysine, cross-links of aldehydic adenine nucleoside adducts with<italic>N</italic>-acetylcysteine lose an<italic>N</italic>-acetylcysteine moiety undergoing transformation into amino derivatives.
The substitution position in the etheno rings of M<sub>1</sub>Gx-A and M<sub>1</sub>MGx-dA was determined based on comparison data derived from NMR spectra with results obtained computational calculations.
Abstract 2‐Silyl‐1,3‐dienes (III) and 2‐silyl‐1,3,n‐trienes (V) are efficiently obtained with complete E‐selectivity.
The paper reports on the structural elucidation of four steroidal glycosides, where two are new, isolated from Veronica chamaedrys L. plants for first time basis extensive spectral analysis, including 2D NMR data and chemical evidences.