Search results for "nitrene"
showing 3 items of 3 documents
Analyse und Optimierung von Gasphasen‐Reaktionen, 18 1,2) Die Pyrolyse von Methylazid
1981
Die PE-spektroskopisch analysierte Pyrolyse von Methylazid verlauft bei 850 K und liefert als Hauptprodukt Methanimin, welches nach einer MNDO-Singulett-Hyperflache betrachtlich stabiler sein sollte als das tautomere Methylnitren. Analysis and Optimization of Gasphase Reactions, 181,2) The Pyrolysis of Methyl Azide The PE spectroscopically analyzed pyrolysis of methyl azide occurs at 850 K and yields as main product methanimine, which according to a MNDO singlet hypersurface should be considerably stabilized relative to the tautomeric methyl nitrene.
New nitrene functionalizations onto sidewalls of carbon nanotubes and their spectroscopic analysis
2010
Abstract The reactivity of p -toluenesulfonyl, methylsulfonyl and trimethylsilyl nitrene, derived from the corresponding azides, was studied towards single-walled carbon nanotubes (SWCNT) prepared by electric arc or HiPCO (High-pressure CO conversion) methods. The functionalized SWCNTs were analyzed by Raman, IR, and VIS/NIR spectroscopy. The spectroscopic results indicated that covalent modification of the SWCNTs was successful. While the IR measurements gave evidence of successful reaction in all studied cases, the Raman measurements indicated differences in the reactivity of the two tube types and between different nitrenes. VIS/NIR spectrum was measured for reaction with p -toluenesulfo…
Synthesis of N‐Monosubstituted Sulfondiimines by Metal‐free Iminations of Sulfiliminium Salts
2023
Sulfondiimines are marginalized entities among nitrogencontaining organosulfur compounds, despite offering promising properties for applications in various fields including medicinal and agrochemical. Herein, we present a metal-free and rapid synthetic procedure for the synthesis of N-monosubstituted sulfondiimines that overcomes current limitations in their synthetic accessibility. Particularly, S,S-dialkyl substrates, which are commonly difficult to convert by existing methods, react well with a combination of iodine, 1,8-diazabicyclo[5.4.0]undec-7-en (DBU), and iminoiodanes (PhINR) in acetonitrile (MeCN) to furnish the corresponding sulfondiimines in yields up to 85% (25 examples). Valua…