Abstract: The invention discloses a method for selectively introducing carbonyl groups into polymers by oxygenation of double C?C bonds of polymers with the aid of nitrous oxide (N2O) at a temperature comprised between 50 and 350° C. and a pressure of N2O of from 0.01 to 100 atmospheres. The introduction of an insignificant amount of C?O groups allows one to modify the physico-chemical properties of a polymer, with its molecular weight and molecular-weight distribution preserved. Deeper oxygenation results in controlled cleavage of polymer macromolecules and makes it possible to produce oxygen-containing oligomers having a desired molecular weight.

Abstract: The invention relates to a method for producing monocyclic ketones C4-C5. The inventive method is based on the reaction of a liquid-phase oxidation of monocyclic alkenes C4-C5 into corresponding cyclic ketones by nitrogen oxide or the mixture thereof with an inert gas. The process is carried out at a temperature ranging from 20 to 300° C. and a pressure of nitrogen oxide ranging from 0,01 to 100 atm. The inventive process ensures the high selectivity with respect to target products, the explosion safety at work and is promising for industrial use.

Abstract: The invention relates to a method for producing monocyclic ketones C7–C20. The method of patent protection sought is based on the oxidation reaction of monocyclic alkenes C7–C20 into corresponding monocyclic ketones with nitrous oxide or a mixture thereof with inert gas. The process proceeds at a temperature ranging from 20 to 350° C. and a pressure of the nitrous oxide ranging from 0.01 to 100 atm. The process provides a high selectivity involving the target product, blast-resistant work operations and is promising for industrial use.

Abstract: A method for partial oxidation of aromatic compounds such as benzene, phenol, chlorobenzene, fluorobenzene, toluene, ethylbenzene and the like, with a molar deficiency of nitrous oxide over a catalyst such as a ZSM-5 or ZSM-11 zeolite. The method is advantageous for producing phenol from benzene at high production rates, high nitrous oxide conversion and high selectivity toward the production of phenol.

Abstract: Zeolite catalysts useful for the production of phenol and its derivatives by oxidative hydroxylation of benzene and its derivatives by nitrous oxide, e.g. at temperatures of 225.degree.-450.degree. C., having substantially enhanced process characteristics resulting from hydrothermal treatment using a gas containing from about 3 to 100 mole percent water vapor, e.g. in nitrogen, at a temperature ranging from about 500.degree. to 1000.degree. C. Two hours of hydrothermal treatment has been shown to be effective.

Abstract: Zeolite catalysts useful for the production of phenol and its derivatives by oxidative hydroxylation of benzene and its derivatives by nitrous oxide, e.g. at temperatures of 225.degree.-450.degree. C., having substantially enhanced process characteristics resulting from hydrothermal treatment using a gas containing from about 3 to 100 mole percent water vapor, e.g. in nitrogen, at a temperature ranging from about 500.degree. to 1000.degree. C. Two hours of hydrothermal treatment has been shown to be effective.