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A method for the preparative synthesis of 1,3,5-tribromophloroglucinol and 1,3,5-triiodophloroglucinol tris(triflates) was suggested. This synthesis was shown to be extremely sensitive to reaction temperature conditions.
It was shown that aromatic polyethers (APs) containing in the main chain bis(porphyrin) perylenediimide triads as new building blocks can be obtained. Thermal properties of the prepared APs showing high glass transition temperature were studied. Negative photoresists based on the final...
A new route was developed to design esters of gem-dicarboxylic acids of cyclopentene series by CH alkylation of diethyl malonate with cis-1,4-dichlorobutene. Diethyl cyclopent-3-ene-1,1-dicarboxylate was reacted with dichlorocarbene. The structures of the isolated compounds were described in...
The thermophysical and structural characteristics of high-purity monoisotopic 80Se containing 99.9 at % main isotope were studied. Differences were found in properties between monoisotopic selenium and selenium of the natural abundance of isotopes, which had comparable chemical purities and...
Metal/carbon nanocomposites have been studied by electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS). EPR study has revealed the existence of delocalized electrons on the carbon shells and the presence of reduced paramagnetic states of nickel in the nickel/carbon...
In order to prepare polymeric contrast agents, various ways of modification of N-vinylpyrrolidone copolymers with vinylamine or acrolein with 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid derivatives were investigated.
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