G. I. Nikishin

Bio: G. I. Nikishin is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Radical & Homolysis. The author has an hindex of 11, co-authored 280 publications receiving 540 citations.

Addition of ω-Carboxyalkyl radicals to olefins, synthesis of DI- and trigarboxylic acids

Abstract: 1 The 1,2,4-butane- and 1,2,5-pentanetricarboxylic acids were obtained via the addition of theβ-carboxyethyl andγ-carboxypropyl radicals to maleic acid 2 Some g10 and C14 unsaturated dicarboxylic acids were synthesized by the addition ofβ-carboxyethyl radicals to butadiene The relation between the yield of the products and the ratio of the reactants was determined

Formation of complex Cu(III) ions using organic peroxides

Abstract: 1. The biuret complexes of Cu(II) when treated with 2-methyltetrahydro-2-furyl peroxide in water are converted to diamagnetic Cu(III) compounds. 2. The biuret complexes of Cu(II) and Cu(III) are efficient catalysts for the decomposition of organic hydroperoxides and H2O2 in water at room temperature.

Free-radical addition of tetrahydrofuranalkanols to unsaturated compounds

Abstract: 1. In the free-radical addition of primary tetrahydrofuranalkanols to unsaturated compounds mainly 2,2-derivative s of tetrahydrofuran are formed. 2. Previously unknown 2,2-disubstituted tetrahydrofurans were prepared which contained 5- or 6-membered lactone rings, one or two hydroxy groups, and a hydroxy and a keto or a hydroxy and an ester group.

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

Cobalt-Catalyzed C―H Activation

Abstract: Catalytic C–H activation has emerged as a powerful tool for sustainable syntheses. In the recent years, notable success was achieved with the development of cobalt-catalyzed C–H functionalizations with either in situ generated or single-component cobalt-complexes under mild reaction conditions. Herein, recent progress in the field of organometallic cobalt-catalyzed C–H activation is reviewed until November 2015.

Catalytic Enantioselective Transformations Involving C-H Bond Cleavage by Transition-Metal Complexes.

Abstract: The development of new methods for the direct functionalization of unactivated C–H bonds is ushering in a paradigm shift in the field of retrosynthetic analysis. In particular, the catalytic enantioselective functionalization of C–H bonds represents a highly atom- and step-economic approach toward the generation of structural complexity. However, as a result of their ubiquity and low reactivity, controlling both the chemo- and stereoselectivity of such processes constitutes a significant challenge. Herein we comprehensively review all asymmetric transition-metal-catalyzed methodologies that are believed to proceed via an inner-sphere-type mechanism, with an emphasis on the nature of stereochemistry generation. Our analysis serves to document the considerable and rapid progress within in the field, while also highlighting limitations of current methods.