Gonsales, Stella A.; Mueller, Zoe C.; Zhao, Fengyue; Paioti, Paulo H. S.; Karmazin, Lydia; Wan, Jing; Liu, Fang; Houk, K. N.; Hoveyda, Amir H. published their research in Journal of the American Chemical Society in 2021. The article was titled 《Cross-metathesis of Allenes. Mechanistic Analysis and Identification of a Ru-CAAC as the Most Effective Catalyst》.Name: Benzylidenebis(tricyclohexylphosphine)dichlororuthenium The article contains the following contents:
The first examples of cross-metathesis between two different allenes is disclosed. First- and second-generation Ru complexes were ineffective, at most affording only oligomeric products. The exception was a first-generation complex bearing a bidentate Ph isopropoxy ligand (i.e., PCy3 is not released upon initiation), reactions with which afforded a 1,3-disubstituted allenyl boronate in 22% yield. On the basis of mechanistic studies designed to gain deeper understanding of the reasons for the ineffectiveness of different Ru catalysts, it was discovered that phosphine-free Ru-CAAC complexes have the steric and electronic attributes to be highly effective. The results of these investigations pave the way for development of addnl. olefin metathesis reactions that generate allenes. In the experimental materials used by the author, we found Benzylidenebis(tricyclohexylphosphine)dichlororuthenium(cas: 172222-30-9Name: Benzylidenebis(tricyclohexylphosphine)dichlororuthenium)
Benzylidenebis(tricyclohexylphosphine)dichlororuthenium(cas: 172222-30-9) is a ruthenium-based olefin metathesis catalyst. It is useful for olefin cross metathesis (CM) and ring closing metathesis (RCM) of terminal olefins under a variety of reactions conditions, and so on.Name: Benzylidenebis(tricyclohexylphosphine)dichlororuthenium
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