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The vibrational spectra of tetravalent metal halides (M = Si, Ge, Sn) and the corresponding dihalocarbene analogs M II Hal 2 , obtained by the authors, and the relevant published data are compared. The spectra of the M II Hal 2 species exhibit inversion of the M-Hal stretching frequencies (ν s...
Kinetics of hydrogen peroxide decomposition in the presence of the tetraaquapalladium(II) complex in an aqueous solution at 40–70 °C was studied. The reaction rate is the first order with respect to the concentration of both Pd II and H 2 O 2 and the negative first order with respect to...
Novel fluorine-containing carbofunctional organosilicon monomers were synthesized: 3-pentafluorobenzylideneaminopropylethoxysilane (EtO) 3 Si(CH 2 ) 3 N=CH-C 6 F 5 , N -3-methoxydiethoxysilylpropyltrifluoroacetamide (EtO) 2 (MeO)Si(CH 2 ) 3 NHC(O)CF 3 , and 1,1,5-trihydrooctafluoroamyl N...
Earlier unknown N -trinitroethyl derivatives of acetylhydrazine, 4-amino-1,2,4-triazole, and 2,4,6-triamino-1,3,5-triazine, which are potential components for gas-generating formulations, were synthesized.
Site-specific deuterium distribution in molecules of the representative series of natural monoterpenes was studied by quantitative 2 H NMR spectroscopy. “H/D-isotope portraits” of these compounds have general characteristic features reflecting biosynthetic pathways. The data obtained suggest...
A procedure was developed for the synthesis of 1,1′-bishydroperoxydi(C 11 -C 15 -cycloalkyl) peroxides based on homocoupling of geminal 11–15-membered bis(hydroperoxy)cycloalkanes in the presence of BF 3 ⋅OEt 2 .
The reactions of 1,4-dimethoxybenzene with azoles (pyrazole, triazole, and their derivatives, as well as tetrazole) were studied by undivided amperostatic electrolysis at Pt electrodes in MeOH. The process proceeds via the formation of a 1,1,4-trimethoxyarenonium cation as the key intermediate...
The electronic structures and dissociation energies of diazocyclopropane ( 1 ), diazomethane ( 2 ), 2-diazopropane ( 3 ), and diazocyclobutane ( 4 ) were calculated at the density functional B3LYP and the ab initio MP2 levels using the 6-31G(d) basis set and at the G2(MP2,SVP)//B3LYP/6-31G(d)...
Triethoxysilanol was isolated for the first time by hydrolysis of chloro(triethoxy)silane in an organic solvent in the presence of a heterogeneous base and identified as an individual compound. The synthesis of this compound made it possible to study its physicochemical properties and...
4-Amino-5-benzoyl(acetyl)isoxazole-3-carboxamides were prepared by cyclization of α-hydroxyimino nitriles O -alkylated with bromoacetophenones (bromoacetone). The purity of the target 4-aminoisoxazoles can be substantially increased by treating O -alkylated oximes with LiClO 4 before cyclization.
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