54078-56-7

Upstream product

• 40117-29-1 N-tert-butyl-α-(4-methylphenyl)nitrone 
• 981-18-0 triphenyl(phenylazo)methane 
• 3376-24-7 N-tert-butyl-α-phenylnitrone 
• 982-99-0 4-methylphenylazotriphenylmethane 
• 106-49-0 p-toluidine 
• 40117-29-1 N-<(4-Methylphenyl)methylene>-2-methyl-2-propanamine N-oxide 
• 459-44-9 4-methylbenzenediazonium tetrafluoroborate 
• 36719-51-4 3,3-diethyl-1-(4-methylphenyl)-1-triazene 

Downstream Products

• 78935-70-3 C₂₁H₃₁NOSi 

Relevant academic research and scientific papers

Metal-Free Visible-Light Synthesis of Arylsulfonyl Fluorides: Scope and Mechanism

The first metal-free procedure for the synthesis of arylsulfonyl fluorides is reported. Under organo-photoredox conditions, aryl diazonium salts react with a readily available SO2 source (DABSO) to afford the desired product through simple nucleophilic fluorination. The reaction tolerates the presence of both electron-rich and -poor aryls and demonstrated a broad functional group tolerance. To shed the light on the reaction mechanism, several experimental techniques were combined, including fluorescence, NMR, and EPR spectroscopy as well as DFT calculations.

Substituent Effects on ESR Parameters of α-Phenyl-N-tert-butylnitrone Spin Adducts. Resolution Enhancement and Mass Spectrometry

The combination of high-performance liquid chromatography (HPLC) and ESR spectrometry was used to isolate the free radicals produced by the reaction of a Grignard reagent with 15 substituted α-phenyl-N-tert-butylnitrones.Long-range hyperfine splitting con

Acid-Catalyzed Thermal Decomposition of 1-Aryl-3,3-dialkyltriazenes in the Presence of Nucleophiles

The acid-catalyzed thermal decompositions of a number of 1-aryl-3,3-dialkyltriazenes (1) in the presence of nucleophiles have been conducted with a view to understanding the underlying mechanisms of these reactions.These reactions parallel the corresponding diazonium ion reactions in that a heterolytic dediazoniation path competes with a homolytic route.The relative proportion of the products arising due to these two competing mechanisms depends upon (a) the electron-transfer efficiency of the nucleophile, (b) the redox potential of the aryl diazonium substrate, and (c) the reaction solvent.

Substituent Effect on the Spin-trapping Reactions of Substituted N-Benzylidene-t-butylamine N-oxides

Relative rates of the reactions of substituted N-benzylidene-t-butylamine N-oxides with substituted phenyl free radicals have been determined by e.s.r. spectroscopic analyses of the products from competitive addition reactions.The substituent effect was interpreted in terms of a reaction mechanism involving an electron-transfer interaction between the reactants.The results are in accord with semiempirical MO calculations.

Mass Spectrometric Determination of Spin Adducts of Hydroxyl and Aryl Free Radicals

G.l.c.-mass spectrometry has been applied in conjunction with the e.s.r. to the identification of spin adducts produced by reactions between short-lived free radicals and nitrone spin traps.Thermally unstable spin adducts were converted into thermally stable and volatile trimethylsilyl derivatives suitable for g.l.c.-mass spectrometry.The structures of the trimethylsilylated spin adducts could be determined by observing molecular and fragment ion peaks as well as isotope peaks.Hydroxyl and aryl free radicals are identfiable by this method.Even if there were more than two different kinds of spin adduct, they could be easily separated by g.l.c. and identified by their mass spectra.