Elucidation of Organic Free Radical Reaction Mechanisms by CIDNP
نویسندگان
چکیده
منابع مشابه
Cyanide reaction with ninhydrin: elucidation of reaction and interference mechanisms.
A new sensitive spectrophotometric method has recently been developed for the trace determination of cyanide with ninhydrin. Cyanide ion was supposed to act as a specific base catalyst. Nevertheless, this paper demonstrates that the reported assay is based on a novel reaction of cyanide with 2,2-dihydroxy-1,3-indanedione, which affords purple or blue colored salts of 2-cyano-1,2,3-trihydroxy-2H...
متن کاملMechanisms of the suppression of free radical overproduction by antioxidants.
In accordance with the mechanism of suppression of free radical overproduction in biological systems all antioxidants can be divided into two main groups: chain-breaking antioxidants and preventive antioxidants. Chain-breaking antioxidants, often referred to as free radical scavengers, protect against oxidative stress as a result of scavenging initial, peroxyl and rarely alkyl radicals. Prevent...
متن کاملElucidation of Reaction Mechanisms Far from Thermodynamic Equilibrium
Far from equilibrium: This thesis provides a deep mechanistic analysis of the electrooxidation of methanol when the system is kept far from the thermodynamic equilibrium. Under an oscillatory regime, interesting characteristics between the elementary reaction steps were observed. We were able to elucidate the effect of the intrinsic drift in a potential time-series responsible for spontaneous t...
متن کاملTemperature-dependent free radical reaction in water
Temperature-dependent free radical reactions were investigated using nitroxyl radicals as redox probes. Reactions of two types of nitroxyl radicals, TEMPOL (4-hydroxyl-2,2,6,6-tetramethylpiperidine-N-oxyl) and carbamoyl-PROXYL (3-carbamoyl-2,2,5,5-tetramethylpyrrolidine-N-oxyl), were tested in this paper. Heating a solution containing a nitroxyl radical and a reduced form of glutathione (GSH) c...
متن کاملFree-radical mechanisms in tissue injury.
There are very many ways to injure and kill cells: amongst these is an important class of reactions dependent on the production of free radical intermediates to trigger an expanding network of multifarious disturbances (see Slater, 1972, 1979a). If we are to adopt rational approaches to the recognition and control of such disturbances, to develop effective protection against the types of injury...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1971
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.29.15