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Inside Cover: Clean, Convenient, High‐yield Access to Second‐generation Ru Metathesis Catalysts from Commercially Available Precursors (ChemCatChem 12/2012)
Author(s) -
van Lierop Bianca J.,
Reckling Amy M.,
Lummiss Justin A. M.,
Fogg Deryn E.
Publication year - 2012
Publication title -
chemcatchem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201290045
Subject(s) - metathesis , yield (engineering) , catalysis , ruthenium , olefin metathesis , phosphine , chemistry , ring opening metathesis polymerisation , salt metathesis reaction , combinatorial chemistry , deprotonation , filtration (mathematics) , organic chemistry , materials science , ion , mathematics , metallurgy , polymerization , polymer , statistics
Keeping Metathesis Simple The cover picture shows a clean, general, and highly efficient route to the three dominant ruthenium catalysts currently used for olefin metathesis. The Full Paper by D. E. Fogg et al. on p. 2020 ff., describes the synthesis of “second‐generation” Ru metathesis catalysts in ≥95% isolated yield and excellent purity, by reacting the PCy 3 parent complexes with isolated free H 2 IMes, and using an ion‐exchange resin to sequester the liberated phosphine. Workup involves simply filtration and evaporation of the solvent. The speed, efficiency, generality and convenience of this methodology provides an attractive alternative to prior approaches based on in situ deprotonation or deprotection of imidazolinium derivatives.