Inventors:
Robert H. Grubbs - South Pasadena CA
Daniel J. OLeary - Claremont CA
Helen E. Blackwell - Somerville MA
Assignee:
California Institute of Technology - Pasadena CA
International Classification:
C08F 426
US Classification:
526160, 526101, 526171, 526172, 502155, 556 22, 556136, 585511, 585514, 585523
Abstract:
A method for the cross-metathesis of terminal olefins is disclosed. The method describes making disubstituted internal olefin products by contacting a first terminal olefin with another first terminal olefin to form a dimer and then contacting the dimer with a second terminal olefin in the presence of a catalyst having the formula where M may be Os or Ru, R and R may be the same or different and may be hydrogen or a substitutent group selected from C -C alkyl, C -C alkenyl, C -C alkynyl, aryl, C C carboxylate, C -C alkoxy, C -C alkenyloxy, C -C alkynyloxy, aryloxy, C -C alkoxycarbonyl, C -C alkylthio, C -C alkylsulfonyl, and C -C alkylsulfinyl. X and X may be the same or different and may be any anionic ligand. L and L may be the same or different and may be any neutral electron donor.