title: Relative rate profile for ring-closing metathesis of a series of 1-substituted 1,7-octadienes as promoted by a 4,5-dihydroimidazol-2-ylidene-coordinated ruthenium catalyst.
abstract: [reaction: see text] This report details the kinetic responses of nine compounds of type 6 to ring-closing metathesis as promoted by 2 to give the identical product 7. The experimental observations have been subjected to Hammett analysis. The rho value for the composite aromatic derivatives (R = p-XC(6)H(4)-) differs from that of the aliphatic series, although both are negative because electron-donating groups accelerate the reaction.
authors.affiliation: Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.forename: Kallol
authors.initials: K
authors.lastname: Basu
authors.forename: Jose A
authors.initials: JA
authors.lastname: Cabral
authors.forename: Leo A
authors.initials: LA
authors.lastname: Paquette