Condensation of resorcinol with phosphorylated acetals, synthesis of calix[4]resorcinolarenes with phosphorus-containing alkyl fragments in the lower rim

The reaction of resorcinol with phosphorylated acetals leads to formation of calix[4]resorcinolarenes having phosphonate, phosphinate, or (phosphinothioyl)sulfanylmethyl fragments in the lower rim of the molecule.     

Synthesis of alkyl (3-pyridyl)hydroxymethylphosphonates and their IR spectra

The reaction of dialkyl H-phosphonates with pyridine-3-carbaldehyde gives alkyl (3-pyridyl)hydroxymethylphosphonates. In liquid systems, the hydrogen atom is localized at the oxygen atom of the hydroxyl group; in crystals, the existence of a zwitter-ionic form could not be excluded. In CHCl₃ solutions, isolated molecules and cyclic dimeric H-complexes exist in an equilibrium.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1674–1676, September, 1994.     

Reaction of 2-trimethylsiloxy-1,3,2-oxazaphospholanes with phenol and ethanol

Conclusions The reaction of 2-trimethylsiloxy-3-phenyl(methyl)-1,3,2-oxazaphospholanes with phenol or ethanol proceeds in two directions, with rupture of the endocyclic P-N bond and via desilylation of the starting phospholane. The end reaction products are alkylarylphosphorous acids.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya. No. 5, pp. 1133–1134, May, 1981.