published as an Advance Article on the web 2,4,6-Tri-tert-butyl-1,3,5-triphosphabenzene (1) reacts selectively with a mixture of the primary lithium alkoxides 2a,b and the corresponding alcohols 3a,b to afford the novel 2,4,6-tri-tert-butyl-1,3,5-alkoxy-1,3,5-triphosphacyclohexane derivatives 4a,b; treatment of 4a with sulfur results in oxidation of all phosphorus atoms to furnish the triphosphane sulfide 5.

2001 organo-phosphorus compounds organo-phosphorus compounds S 0080 -147Organophosphorus Compounds.Part 152. Unusual Addition Reactions of Lithium Alkoxides to 2,4,6-Tri-tert-butyl-1,3,5triphosphabenzene.-The triphosphabenzene (I) reacts selectively with a mixture of a primary lithium alkoxide and the corresponding alcohol to afford novel 1,3,5-alkoxy-1,3,5-triphosphacyclohexane derivatives such as (III). Treatment of (III) with sulfur results in oxidation of all phosphorous atoms to furnish the triphosphane sulfide (IV). -(KREIN, M.; BERGSTRAESSER, U.; PETERS, C.; RUF, S. G.; REGITZ, M.; Chem.