Enzyme-triggered Radical Reactions: Another Approach For Tin-free Radical Chemistry
نویسندگان
چکیده
منابع مشابه
Chemistry of carotenoid oxidation and free radical reactions*2
When oxygenic photosynthesis evolved, one of the key functions of carotenoids was to protect aerobic photosynthetic organisms against destruction by photodynamic sensitization. Aerobic photosynthesis would not exist without the coevolution of carotenoids alongside the chlorophylls. As carotenoids are abundant in nature, in many fruits and vegetables, they are able to react with excited states o...
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Introduction One of the long-term objectives of our research program is to contribute at strategic, tactical and theoretical levels with approaches leading to the creation of new stereogenic centers, notably on acyclic molecules, which as a class are among the most difficult chemical entities to transform stereoselectively due to their flexibility. Of particular interest to us is the use of fre...
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Enzymes which catalyze the formation of free radicals in vitro will catalyze similar reactions in vivo. We believe that the formation of some kinds of free radicals has definite physiological meanings in metabolism. In this sense, the enzymes forming such free radicals are concluded to be in evolutionally advanced states. Elaborated structure and function of enzymes such as horseradish peroxida...
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Kinetic and mechanistic studies on some characteristic freeradica1 reactions are reviewed briefly. The unimolecular rearrangements: RCMe2CH ÷ Me2CCH2R, fall into two classes. Class 1: R = R'C(O)O for which the 1,2—migration occurs via a 5—eenter cyclic transition state with considerable charge separation, [R'C02 Me2CCH2]*. Class 2: R = H2C=CH, Me3CC=0, C6H5, Me3CCsC, and CsN, for which migratio...
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ژورنال
عنوان ژورنال: CHIMIA International Journal for Chemistry
سال: 2012
ISSN: 0009-4293
DOI: 10.2533/chimia.2012.435