Some new derivatives of pyridyl- and quinolylphosphonic acids

Diamides and amido esters were obtained by the reaction of pyridine and quinoline N-oxide salts with phosphorous acid amido esters, and pyridyl- and quinolylphosphonic acid esters were obtained by reaction of the N-oxide salts with sodium dialkylphosphites.     

Dipentaerethrite in the synthesis of model amidophosphate phospholipids

A productive method for the synthesis of original phospholipid architectures is developed based on the available reagent dipentaerythritol. Introduction of the phosphoric function to the system is achieved by using phosphoric hexaethyltriamide.     

Structure and chemical transformations of dipentaerythritol bisbicyclophosphite

First data on the chemical properties of dipentaerythritol bisbicyclophosphite and — thionophosphate are presented. The structures of the bisbicyclophosphite and its molybdenum complex are established by X-ray diffraction analysis.     

Trends in dislocation-structure formation along slip lines

Simulation has given statistical relationships for the early stage of slip-band development. Dislocation multiplication is considered within the framework of a double transverse slip model. There is a relationship between the number of loops at the surface and that within the crystal. A method is given for determining the times for source formation and loop generation, and numerical estimates are made from the published experimental data.     

Hydrolysis of bisbicyclophosphite and related thionophosphate,derivatives of tripentaerythritol. Arbuzov alkylation of the bisbicyclophosphite

The first data on the study of hydrolysis of bisbicyclophosphite and related thionophosphates of tripentaerythritol series in acidic and basic media are presented. Arbuzov alkylation of bisbicyclophosphite with methyl iodide was studied.     

Advances in Chalcogene Glycerophosphate Chemistry

Abstract

Achievements in the chemistry of trivalent phosphorus and phosphocyclic compounds find wide application in the synthesis of natural compounds. This paper provides fresh data on the possible use of these substances for the production of glycerophospholipids as well as their thio- and seleno-analogues. Thiol- and selenoanalogues of phosphatidylhomo-choline were obtained by a convenient thion-thiol/selenone-selenole isomerization of triester glycerophosphates in the presence of phosphonium salts as catalysts.