The article analyzes the views of various economists on interpretation term "region". Based generalization these definitions, main accents for understanding nature "regional development" are determined. criteria economic zoning clarified and a systematic division territory Ukraine into districts, each which has certain features production, social, demographic, historical, etc. character, is pro...

An eco-safe and facile multi-component domino reaction has been described for the synthesis of 1H-pyrazolo [1, 2-b] phthalazine-5, 10-dione derivatives. The products were obtained by a four-component condensation reaction between phthalimide, hydrazine monohydrate, aromatic aldehyde derivatives and malononitrile in the presence of a catalytic amount of copper (II) oxide (CuO) ...