A. A. Borisenko

C- and N-Substituted Phosphorus(III) Derivatives of Azomethines

Abstract The reactions of halogenides of P(III) acids with lithium derivatives of azomethines depending on the substituents at the phosphorus atom, the structure of azomethines and conditions of the reaction were studied. A method for synthesizing tile C- and N-phorphorus(III) substituted azomethines was proposed:

Synthesis, structure and catalytic properties of neutral carbonyl complexes of rhodium(I) with 2-amino-1,3,2-dioxaphosphorinanes

Abstract Neutral mono- and di-nuclear carbonyl 2-amino-1,3,2-dioxaphosphorinane rhodium complexes of types RhCl(CO)L2 and [RhCl(CO)L]2 have been synthetized. The complexing process in the [RhCl(CO)2]2-phosphcrinane system has been investigated at different molar ratios of reagents by means of 31P NMR spectroscopy. The dinuclear phosphorinane complexes, in contrast to mononuclear ones, exhibit activity in the catalytic hydrogenation of olefins.

Element-Substituted Acylphosphines

Abstract Element-substituted acylphosphines are stable in form 2 R1P(ERn)COR2 (A), when E=Ge, Sn, Sb, P, T1 and in form R1 P=C(OERn)R2 by NMR data. The reaction

Reaction of 2,4-Dialkoxy-1,2λ3,4λ3-azadiphosphetidines with Some Electrophilic Reagents.

The alkylation, acylation, phosphorylation, and bromination of 2,4-dialkoxy-1,2,4-azadiphosphetidines go by the Arbuzov-reaction scheme with the formation of the corresponding 1,2,4-azadiphosphetidines containing one or two 4-coordinate phosphorus atoms in the molecule. The structures of the new 1,2,4-azadiphosphetidines obtained were investigated with the aid of the /sup 1/H, /sup 31/P, and /sup 13/C NMR spectra, assignments were made for the signals of the cis and trans isomers of these compounds, and some of their geometric parameters were determined. The Arbuzov reactions of 2,4-dialkoxy-1,2,4-azadiphosphetidines with methyl iodide, bromine, and some acyl halides go with change in the proportions of the cis and trans isomers in the reaction products in comparison with the original azadiphosphetidines, which is the result of the change in the configuration of one of the phosphorus atoms in the ring.