Synthesis of cyclic polysulfides: Controlled ring-expansion polymerization of cyclic tetrathioester with thiirane
作者:Hiroto Kudo、Yuki Takeshi
DOI:10.1002/pola.27068
日期:2014.3.15
We synthesized cyclictetrathioesters containing thioester moieties at the o‐position (o‐CTE) and m‐position (m‐CTE) of an aromatic skeleton. The reaction of phenoxy propylenesulfide (PPS) with o‐CTE and m‐CTE was examined using tetrabutylammonium chloride as a catalyst in 1‐methyl‐2‐pyrrolidinone, yielding the corresponding cyclicpolysulfides poly[o‐CTE(PPS)n] with Mn's = 37,000–54,000 at 34–61%