Development of the Technologies for the Synthesis of Polyfluoroaromatic Compounds, Crown Ethers, Plant Phytoimmunocorrectors and Their Introduction into the Experimental-Industrial Production
V. V. BARDIN, A. V. SYSOEV, D. I. KOLENO, M. M. MITASOV, E. G. BAGRYANSKAYA
Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: hexafluorobenzene, crown ethers, triterpenic acids
Pages: 240-245
Abstract
Some examples of the technological developments implemented at the Experimental Chemical Plant of the Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, in collaboration with the Rosatom State Corporation, for application in various areas are considered. The technology for the synthesis of basic polyfluoroaromatic compounds (hexafluorobenzene, chloropentafluorobenzene and isomeric dichlorotetrafluorobenzenes) was developed. The key stage of the process is the substitution of chlorine atoms in hexachlorobenzene under the action of anhydrous potassium fluoride in an autoclave at 450-550 °C. The production of grand lots of a number of high-purity crown ethers was developed and optimized, which allowed their use in actual industrial processes for selective extraction of some metals. A commercially available biologically active preparation accelerating the growth, development and general stability of plants to diseases was created as a result of fundamental studies of triterpene compounds extracted from Siberian larch.
DOI: 10.15372/CSD2021302
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