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Information × Registration Number 0218U002034, 0117U004566 , 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 Ivanovich, Доктор хімічних наук Registration Date 03-01-2018 Organization The L.M.Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry popup.description2 The object of the study is new stable stable electron-donating carbenes and their precarbene and carbenoid forms of condensed and mononuclear type with steric protection of the carbene center and sterically open for the creation of highly efficient catalysts for the reductive dehalogenation (hydrodehalogenation) of haloarenes and the reaction for the reduction of multiple bonds by alcohols in an alkaline medium. The purpose of the work is the synthesis of new stable carbenes and their precarbene and carbenoid forms with a high electron-donor ability to produce catalysts for the reactions of hydrohalogenation of haloarenes and the reduction of multiple bonds by alcohols in an alkaline medium. Methods of the research are synthetic, spectral (NMR spectroscopy), analytical (chromatographic, elemental analysis). The results of the work. It was established by DFT method three main types of carbenes according to the level of their electron-donating properties, which are used in the choice of systems for synthesis. The synthesis of fused phenanthro[9,10-d] imidazole-2-ylidene and imidazo[2,1-c]-1,2,4-triazol-7-ylidene derivatives with aromatic and aliphatic substituents based on phenanthrenequinone and 2-hydrazino-1,4,5-triphenylimidazole. The precarbene forms for highly electron-donating carbenes 1,3-di(1-adamantyl)-5,6-dihydro-4H-pyrimidinium, bis(4-hydroxyphenyl)imidazolium and bis(2-methoxyphenyl)imidazolium salts were synthesized based on 1-aminoadamantane and glyoxal anils. A catalytic version of the synthesis of precarbene of the pyridine series by reaction of 3,5-dibromopyridine with morpholine under the conditions of the Buchwald-Hartwig reaction with a carbene complex catalyst was developed. The prepared precarbenes are promising starting compounds for the synthesis of highly efficient catalysts for the transesterification reaction, hydrodehalogenation of haloarenes, and the reduction of multiple bonds. The field of application is the synthesis of stable carbenes and their precarbene forms. In the future, the synthesis and study of the efficiency of new carbene complex catalysts of reduction processes based on synthesized carbenes is proposed. Product Description popup.authors Єня Василь Іванович Короткіх Микола Іванович Раєнко Генадій Федорович popup.nrat_date 2020-04-02 Close