In the title compound, C(18)H(18)O(5), the dihedral angle between the two benzene rings is 55.2 (3)°. The ethyl acrylate linkage is planar and forms dihedral angles of 21.3 (3) and 41.0 (3)°, respectively, with the hydroxy-phenyl and methoxy-phenyl rings. In the crystal structure, mol-ecules are linked into zigzag chains along the b axis by O-H⋯O hydrogen bonds.

Ether-protecting functions at C-2 hydroxy groups have been found to play participating roles in glycosylations when the reactions are conducted in nitrile solvent mixtures. The participation mechanism is based on intramolecular interaction between the lone electron pair of the oxygen atom of the C-2 ether function and the nitrile molecule when they are positioned in a cis configuration. A 1,2-c...

ethyl benzene used increasingly each year is the raw material of producing styrene monomer. this substanceis produced from benzene alkylation with ethylene or ethanol, depending on the availability and cost of rawmaterials. in this study benzene alkylation in the presence of ethanol in a catalytic fixed bed reactor inthree states of isotherm, adiabatic and non-isotherm-non-adiabatic is mathemat...

The complex-forming ability of 2-methyl-3-hydroxypyran-4-one (1a), 2-ethyl-3-hydroxypyran-4-one (1b), 1,2-dimethyl-3-hydroxypyridin-4-one (4a) and 1-ethyl-2-methyl-3-hydroxypyridin-4-one (4b) with nickel(Ni(II)) were characterized by infrared, ultraviolet, proton nuclear magnetic resonance spectroscopy and melting point. The mole-ratio of nickel:ligands was analyzed by atomic-absorption-spectro...

Maytenus dasyclada is a trees belonging to the Celastraceae family. The species of Maytenus genus are popularly used to treat gastrointestinal diseases and inflammatory processes as well. The aim of this study was to evaluate the antioxidant activity of hexanic, ethyl acetate and ethanolic extracts from leaves of species, verifying the ability in protect the DNA and remove reactive species , id...

Synthesis of the model compounds of carzinophilin carrying 2-methylidene-1-aza-bicyclo[3.1.0]hexane systems was achieved. Formation of malonylidenes or N-acyl-glycinylidenepyrrolidines was carried out by utilizing Eschenmoser’s sulfide contraction or Herdeis’s condensation between the 2-methylthio-D-pyrrolone derivatives and ethyl nitroacetate, respectively. The 1-azabicyclo-[3.1.0]hexane syste...

The mononuclear title complex, [VCl2O(C3H8S)2], features a V(IV)=O double bond [1.5845 (15) Å] in an overall trigonal-bipyramidal coordination environment defined by two Cl(-) and the S atoms of two (CH3CH2)(CH3)S ligands. In the crystal, pairs of mol-ecules form centrosymmetric dimers via C-H⋯O hydrogen bonds between the methyl C-H group and the oxidovanadium O atom of a neighbouring mol-ecule.

IR and Raman spectra of 2-Ethyl-3-hydroxy-4-pyrone were recorded and analyzed. The vibrational wavenumbers were computed using B3LYP/6-31G* basis. The data obtained from vibrational wavenumber calculations are used to assign vibrational bands obtained experimentally.

The Ru-hydride precursors (Im(OMe)2)(PPh3)2RuHCl () and (Me2Im(OMe)2)(PPh3)2RuHCl () reacted with ethyl-vinyl-sulfide to give ((MeOCH2CH2)C3H2N2(CH2CH(OMe))RuCl(PPh3)2 () and ((MeOCH2CH2)C3Me2N2(CH2CH(OMe))RuCl(PPh3)2 (), respectively. Dissolution of () in C6D6 prompts formation of ((MeOCH2CH2)C5H6N2(CHCH)RuCl(PPh3)2 (). The analogous reactions of the bis-carbene Ru-hydride precursors (Im(OMe)2...

Television markets in the CEE region have experienced rapid growth in recent years. The number of multichannel TV households (households that can receive cable or satellite television, as well as terrestrial channels) grew by almost 50 percent and the share of Pay TV increased to over 40 percent between 2008 and 2010. Demand for multichannel TV in the region, however, is far from reaching satur...