《Synthesis of polycyclic polyolefins by a Pd-catalyzed isomerization polymerization of vinylcycloalkanes》 was written by Takeuchi, Daisuke; Nakamura, Karin; Tokura, Yuki; Tsubamoto, Ryuji; Osakada, Kohtaro. Quality Control of Benzylidenebis(tricyclohexylphosphine)dichlororuthenium And the article was included in Polymer Journal (Tokyo, Japan) in 2020. The article conveys some information:
Vinylcycloalkanes with 12-, 15-, and 21-membered rings were synthesized from com. available cycloalkanones or cycloalkyl carboxylic acids derived from malonate and ω-bromo-α-alkenes. Pd complexes with diimine ligands promoted the isomerization polymerization of vinylcycloalkanes with 15- and 21-membered rings to afford polymers having cycloalkylene groups in the main chain. Vinylcycloheneicosane with a 21-membered ring afforded polymers with Mn up to 9700, whereas vinylcycloalkanes with smaller ring sizes (8- and 12-membered rings) yielded oligomers with Mn = 720-1600. In the experimental materials used by the author, we found Benzylidenebis(tricyclohexylphosphine)dichlororuthenium(cas: 172222-30-9Quality Control of Benzylidenebis(tricyclohexylphosphine)dichlororuthenium)
Benzylidenebis(tricyclohexylphosphine)dichlororuthenium(cas: 172222-30-9) is the first metathesis catalyst to be widely used in organic synthesis. It is useful for acyclic diene metathesis polymerization (ADMET), Ring-Opening Metathesis Polymerization (ROMP) of strained cyclic olefins, ring opening metathesis (ROM), and so on.Quality Control of Benzylidenebis(tricyclohexylphosphine)dichlororuthenium
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics