Kozminykh V.О., Kirillova E.A., Vinogradov A.N., Mukovoz P.P., Scherbakov Yu.V., Mozgunova E.M., Golotsvan A.V., Kozminykh E.N.
METAL DERIVATIVES OF ρ-π-ELECTRON DONATING POLYCARBONYL SYSTEMS WITH CLOSED α- AND β-DIOXO FRAGMENTS. PART 3. SYNTHESIS AND STRUCTURE OF METAL(II)CHELATES OF 4-OXODERIVATIVES OF 2-HYDROXY-2ALKENOATE ETHERS ^{[№ 4 ' 2009]}
Metal-exchange reaction of metal(II) salts in water solutions with sodium enolates of 4-oxoderivatives of 2-hydroxy-2-alkenoate ethers (LNa), synthesized by the Claisen condensation of methylenecarbonyl compounds (methyl ketones or ethyl acetate) with diethyl oxalate at basic conditions, leads to O,O’-coordinated metal-1,3-diketonate complexes, i.e. metal(II)chelates (L₂Met) composed on oxoalkenoate bidentate ligands. The structure peculiarities of synthesized β-diketonates are discussed. Presented are data, additional to preceding papers, about synthesis, structure and properties of functionalized 1,3-dicarbonyl anion metal derivatives.

Kozminykh V.O., Kirillova E.A., Goncharov V.I., Golotsvan A.V.
TERNARY TANDEM HETEROCYCLIZATION OF ACETOPHENONE WITH DIETHYLCSLAD AND M-AMINOPHENOL – NEW METHOD FOR GETTING OF 7-HYDROXY-4-PHENYLQUINOLIN-2-CARBOXYLIC ACID ^{[№ 4 ' 2008]}
The ether condensation of acetophenone with diethyl oxalate and m-aminophenol in presence of sodium followed by treatment of the reaction mixture with acetic acid proceeds unusually to preparatively yield 7-hydroxy-4-phenylquinoline-2-carboxylic acid. This three component tandem heterocyclization is proposed to be used as a new regiodirected method of quinoline-2-carboxylic (quinaldinic) acid synthesis. The reaction pathway and structure peculiarities of the prepared compound as well as alternative structures are under discussion.