Patrice Marchand

Synthesis of hybrid dendrimer-star polymers by the RAFT process

A first generation phosphorus-containing dendrimer with twelve terminal benzyl dithiobenzoate functions was designed and subsequently used as a multifunctional agent to derive hybrid star copolymers consisting of a dendritic core surrounded by twelve polystyrene branches by reversible addition-fragmentation chain transfer (RAFT).

Generation and Reactivity of α-Phosphorylated Sulfur Stabilised Carbanions and Ylides; Selective Syntheses of α-Thiosubstituted Phosphonates

An asymmetric synthesis of an α-mercapto-but-3-enyl phosphonate and the preparation of various α-phosphorylated unsaturated sulfides were respectively achieved via carbanion and ylide [2,3]-sigmatropic rearrangements.

Synthesis and Characterization of Diaminodithio- and Aminotrithiophosphoric Acid Esters

The synthesis and characterization of a series of five new diaminodithiophosphoric acid esters (R1R2N)2P(S)SR and five new aminotrithiophosphoric acid esters (R1R2N)P(S)(SR)2 are described. The structure of two of these compounds, the diaminodithio derivative (iPr2N)2P(S)SCH2Ph and the aminotrithio derivative (iPr2N)P(S)(SCH2Ph)2, has been determined by single crystal X-ray diffraction. These series of compounds are potentially usable as agents for reversible addition-fragmentation chain transfer polymerization.