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Information × Registration Number 0219U001258, 0118U001519 , R & D reports Title Development of new highly efficient catalysts of the reduction reactions of haloarenes and multiple bonds for the solution of environmental and green chemistry problems popup.stage_title Head Korotkikh Nikolai, Доктор хімічних наук Registration Date 29-01-2019 Organization The L.M.Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry popup.description2 Object of research. New stable high electron donative carbenes and their precarbene and carbenoid forms of fused and mononuclear types with steric protection of the carbogenic center to create highly effective catalysts of the reaction of reductive dehalogenation (hydrodegalogenation) of halogenarenes and the reduction reaction of multiple bonds with alcohols in an alkaline medium. The purpose of the work is to synthesize new stable carbenes and their carbenoid forms with high electron donor abilities. The study of the catalytic efficiency of carbene complexes in the reactions of hydrodehalogenation of haloarenes and reduction of multiple bonds with alcohols in an alkaline medium. The research methods are synthetic, spectral (NMR spectroscopy, mass spectrometry), analytical (chromatographic, elemental analysis). Results. By the DFT method it was found that for fused, mesoionic and ylide carbenes, diaminocarbenes the resistance to dimerization is due to steric screening of the carbene center. The synthesis of 1,3-dimesitylphenantro[9,10-d]imidazol-2-ylidene, 1,3-di(1-adamantyl)-5,6-dihydro-4H-pyrimidin-2-ylidene, branched aromatic derivatives of imidazol- 2-ylidene and their carbene complexes with palladium and copper (I) iodides. The stabilized complexes of superbasic carbenes and sodium and nickel based on 1,3-bis (4-oxidophenyl)imidazol-2-ylidene were synthesized. The high catalytic effect of the synthesized carbenes in the reaction of hydrodehalogenation of p-dichlorobenzene with isopropanol in the presence of sodium methoxide at 80 °C. (TON 98000-110000) was revealed. The complexes of copper(I) are active in the reduction reaction of benzophenone in an alkaline medium. The obtained precarbenes are promising starting compounds for the synthesis of highly effective catalysts of organic reactions (transesterification, condensation etc). Scope of application - synthesis of stable carbenes and their carbenoid forms, catalysis of organic reactions, neutralization of persistent organic pollutants Product Description popup.authors Єня Василь Іванович Короткіх Микола Іванович Раєнко Геннадій Федорович popup.nrat_date 2020-04-02 Close