Synthesis and antioxidative properties of some 3,4-dihydropyrimidin-2(1H)ones (-thiones)

3,4-Dihydropyrimidinones (-thiones) were prepared by ternary condensation of various aromatic aldehydes with ethyl acetoacetate and urea (thiourea) in the presence of trichloroacetic acid in ethanol.     

Synthesis of a symmetrical dithiirane

The reaction of p-xylene with epichlorohydrin in the presence of aluminum chloride gave 1,4-dimethyl-2,5-bis(1-chloro-2-hydroxypropyl)benzene, which serves as the starting compound for the synthesis of the corresponding symmetrical dithiirane.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1319–1321, October, 1985.     

Synthesis and properties of benzyl-substituted thiiranes

The reaction of phenyl- and p-tolylmagnesium bromides, as well as di, tri, and tetramethylbenzene, with epichlorohydrin was used to synthesize the corresponding chlorohydrins, which were then converted to various benzyl-substituted oxiranes and thiiranes.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 598–602, May, 1988.     

Binary cooligomers of 2-propenylphenol with 1-heptene and 1-decene as antimicrobial additives for lubricating oil I-12A

Binary cooligomers of C₇ and C₁₀ α-olefins with 2-propenylphenol were synthesized in the presence of a complex catalyst based on aluminum chloride, toluene, and ethyl chloride (1:3.0:0.6 mol). Tests of the cooligomers as antimicrobial additives to I-12A oil showed that, in concentrations of 0.25 and 0.5%, they inhibit fungal growth, being superior to 8-hydroxyquinoline (reference) in the efficiency of action.     

A new synthesis of methanoisoindoles

Russian Journal of Organic Chemistry -     

Carbohydrate complex of Pirus communis

M. V. Lomonosov Odessa Technological Institute of the Food Industry. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 421–423, May–June, 1991.     

Synthesis and antioxidant activity of 1-amino-4-phenyl-2-butanethiols

1-Amino-4-phenyl-2-butanethiols were synthesized and characterized and their antioxidant activity in auto-oxidation of cumene and in their reaction with cumyl peroxide radicals and cumyl hydroperoxide was studied.     

Phase equilibria and glass formation in the As2S3-TlAs2S2Se2 section of the As2S3-As2Se3-TlS system

Alloys in the As₂S₃-TlAs₂S₂Se₂ section of the As₂S₃-As₂Se₃-TlS ternary system were studied and a phase diagram was constructed using physicochemical methods (differential thermal analysis, microstructural analysis, X-ray powder diffraction, also microhardness and density measurements). The diagram in the As₂S₃-TlAs₂S₂Se₂ section is a non-quasi-binary diagonal section of the As₂S₃-As₂Se₃-TlSe quasi-ternary system. It was found that all the alloys in the section under ordinary conditions are obtained in the vitreous state. At low As₂S₃ concentrations in the section, solid solutions form up to 2.5 mol %, and at low TlAs₂S₂Se₂ concentrations, their extent is 3 mol %.     

Synthesis of copolymers of decyl methacrylate with o-allylphenol and their investigation as viscosity improving additives for petroleum oils

Russian Journal of Applied Chemistry - The synthesis of copolymers of decyl methacrylate with o-allylphenol was performed. The influence of various factors on the results of the process was...     

3-Substituted Thietanes as Effective Inhibitors of Cumene Oxidation

3-Substituted thietanes were prepared by reaction of 1,2-epithio-3-chloropropane with various nucleophiles in aqueous solutions and were characterized. The inhibiting power of these compounds in cumene oxidation was studied.