synthesized with high degree of purity. These xanthates were used as chain transfer agents (CTA) in the RAFT/MADIX polymerization of vinylacetate (VAc) to prepare end‐capped poly(VAc). The rate of VAc polymerization in the presence of these new CTAs was shown to be similar to that obtained with conventional xanthate, that is, (methyl ethoxycarbonothioyl) sulfanyl acetate. Good control of VAc polymerization
A new approach to cyclohexenes and related structures
作者:Nathalie Cholleton、Yvan Six、Samir Z. Zard、Isabelle Gauthier-Gillaizeau
DOI:10.1039/b001119n
日期:——
Intermolecular radical addition of a xanthyl phosphonoacetate
to a γ,δ-enone gives rise to an adduct suitable for a base
induced Horner–Emmons ring closure to a cyclohexene derivative,
optionally after the reductive removal of the xanthate group.