2-(2-Hydroxyphenyl)imidazolidines and their O-phosphorylated derivatives

2-(2-Hydroxyaryl)imidazolidines were synthesized by reaction of aromatic carbonyl compounds with N,N′-dialkylethylenediamines. The title compounds were also prepared using the corresponding Schiff bases instead of carbonyl compounds. Phosphorylation of 2-(2-hydroxyphenyl)imidazolidines with phosphoryl and phosphorothioyl chlorides and phosphorochloridites was accomplished. The reaction of O-phosphorylsalicylaldehyde with N,N′-dialkylethylenediamines also afforded 2-(2-hydroxyphenyl)imidazolidines.     

Reaction of (chloromethyl)[iso(thio)cyanato](thio)phosphonates with 2-aminopyridine

Russian Journal of General Chemistry -     

Crystallochemical Aspect of Phase Formation in the γ-FeOOH-H2O-NaOH System

Phase transition of metastable -FeOOH into -FeOOH and its chemical transformation into -Fe₂O₃ upon hydrothermal treatment in 0-5 M NaOH solutions at 100-230°C were studied. The regions of formation of the above phases were specified. The probable composition of the crystallizing complexes formed in the solutions and the reactions occurring at their incorporation into various atomically smooth faces of -FeOOH and -Fe₂O₃ were considered.     

1,3,4-thiazaphosphol-2-ines containing acetal groups in the molecule

Russian Journal of General Chemistry -     

Interaction of ethylenechlorophosphite with hydroxyl-containing azomethines

Russian Journal of General Chemistry -     

Pyridoxal reactions with amines and aliphatic diamines

Interaction of pyridoxal (3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde) with amines, mono- and disubstituted diamines led to the formation of compounds having in their structure imine, imidazolidine, and pyrimidine moieties. Structure of the obtained compounds was proved by IR data, ¹H NMR spectroscopy, mass spectrometry, and X-ray diffraction analysis.