Raymond Kraemer

Synthesis of the first stable metadithiophosphonate

Synthese du dithioxo tri-t-butyl-2,4,6 phenyl phosphorane par reaction de la dimethylaminomethylene tri-t-butyl-2,4,6 phenyl phosphine avec le soufre S 8

Reactivite de quelques phosphor(III)adamantanes et de quelques analogues tricycliques

Abstract The reactivity of some phosphor(III)adamantans has been investigated. New ways of obtention of P(V)derivatives are described.

Les dithiaphospho(III)lanes-1,3,2, noveaux precurseurs de derives du phosphore penta- et dicoordine

Abstract The synthesis of new spirodithiaphospholans is described. Lability of these compounds allows to obtain by an orginally way dicoordinated phosphorus derivatives.

Etude de la reactivite du tris(tertiobutyl)phenyldithiophosphorane

Abstract Heating of tris(tertiobutyl)phenyldithiophosphorane gives rise to an isomer with a tetracoordinated phosphorus atom. The action of triphenylphosphine loads to a tricyclophosphathiane which can be transformed in diphosphene by an excess of triphenylphosphine. Reactions with various nucleophilic derivatives (pyridine, triethylamine, diethylamine, butylamine, water, tetraphenylarsonium chloride) are described.

ETUDE DE L'ACTION DU SOUFRE SUR LA TRIS(TERTIOBUTYL)PHENYLPHOSPHINE

Abstract Sterically protected tris(tertiarybutyl)phenylphosphine reacts with sulfur, giving rise to the corresponding sulphide which reacts further to produce bis[tris(tertiarybutyl)phenyl]trithiodiphosphinate. This last compound finally affords the first stable metadithiophosphonate.

Quelques Proprietes Chimiques Du Tris(Tertiobutyl)-2,4,6 Phenyldithiophosphorane

Abstract The chemical properties of the dihometaphosphonate analogue, tris(2,4,6-t-butyl)phenyldithb phosphorane (1), are reported in detail.

Carbon-13 chemical shift assignment of some organophosphorus compounds–VI. Aryl, aryloxy, phenylhydrazino and alkylamino substituted thiophosphoric hydrazines and cyclic analogues

Abstract Carbon-13 chemical shifts and pc coupling constants of 11 phosphoric hydrazines and tetraazophosphorien P-sulphide are reported.

Heterocyclic compounds containing phosphorus. Part 30. Synthesis of mixed phosphorohydrazides and of some new mono-, bi-, and tri-cyclic derivatives

Mixed phosphorohydrazides have been synthesized. They react with formaldehyde and with acetone to give new mono- or bi-cyclic compounds. In one case, the carbonyl group reacted with a nitrogen atom directly linked to phosphorus, thus forming a chiral tricyclic compound.