New β- and γ-amino acetals containing phosphine oxide groups were synthesized by the Kabachnik-Fields reaction of β- and γ-amino acetals with paraformaldehyde and dialkylphosphine oxides. Heating of the resulting β- and ...

A number of 4- and 5-R-sulfanylfuran-2(5H)-one derivatives were synthesized, and their oxidation with various reagents was studied. The corresponding sulfones were obtained using hydrogen peroxide in acetic acid. 4-R-sulfanyl ...

A convenient procedure has been developed for the synthesis of p-tert-butylthiacalix[4]arene derivatives modified at the lower rim with anthraquinone fragments linked through acetamide spacers. The products showed moderate ...

N,N′-Bis[(RS)-, (S)-, and (R)-1-phenylethyl]phosphorodiamidodithioic acids were synthesized by reactions of racemic and enantiomerically pure 1-phenylethanamines with tetraphosphorus decasulfide. © 2014 Pleiades Publishing, Ltd.

© 2014 Pleiades Publishing, Ltd. Method of dipole moments and quantum-chemical calculations allowed establishing that 1-nitro-3,3,3-trifluoro- and 1-nitro-3,3,3-tribromopropenes have the E-configuration (the nitro group ...

© 2014 Pleiades Publishing, Ltd. Paracetamol smoothly reacted with 2,4-diaryl-1,3,2λ5,4λ5-dithiadiphosphetane 2,4-disulfides to give O-[4-(acetylamino)phenyl] hydrogen arylphosphonodithioates.

The amination of 4,6-dichloro-5,7-dinitrobenzofuroxan and 4,6-dichloro-5,7-dinitrobenzofurazan with dibenzylamine followed the aromatic nucleophilic substitution pattern (SNAr) and gave products of replacement of both ...

Reactions of 5,7-dichloro-4,6-dinitrobenzofuroxane and 5,7-dichloro-4,6- dinitrobenzofurazane with triphenylphosphine proceed through a nucleophilic aromatic substitution of chlorine and nitro groups in the six-membered ...

© Pleiades Publishing, Ltd., 2011. Synthetic approaches to three cyclic 2,4,5,6-tetrakis(hydroxymethyl)pyridin-3-ol acetonides were developed. Among seven possible mono- and diketals, six-membered cyclic ketal incorporating ...

Conformational analysis of bis(2-phenylalkyl)phosphine selenides was performed by the dipole moment method and quantum-chemical calculations. Bis(2-phenylpropyl)phosphine selenide was found to exist as a mixture of several ...