Synthesis of (α-substituted α-aminophosphinic and α-aminophosphonic acids

The reaction of ketoximes with hypophosphorous acid resulted in previously unknown -substituted--aminophosphinic acids, which were oxidized into the corresponding -substituted--aminophosphonic acids.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2729–2732, November, 1996.     

Synthesis of phosphinic and phosphonic analogs of homoserine

A convenient procedure for the synthesis of 1-amino-3-hydroxypropylphosphinic and -phosphonic acids (analogs of homoserine) was developed. The procedure involves the reaction of salts of phosphinic and phosphonic analogs of S-methylmethionine with AcONa/AcOH followed by hydrolysis.     

Synthesis of phosphinic and phosphoric analogs of aspartic acid

Approaches to the synthesis of 1-amino- and 2-amino-2-carboxyethylphosphinic and-phosphoric acids have been studied. A convenient method for the preparation of phosphinic acids is the reactions of ethyl diethoxymethylphosphonite with ethyl acetamidomethylenemalonate and ethyl 2-acetamidoacrylate.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 2066–2069, August, 1996.     

Motion of bodies in a granular bed

Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 2, pp. 27–30, March–April, 1991.