Method of preparing ruthenium and osmium carbene complexes

Details Method of preparing ruthenium and osmium carbene complexes Method of preparing ruthenium and osmium carbene complexes

1996-08-30

1998-01-20

Nagumo, Mark

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556136, 502155, 526171, 526943, 585511, 585643, C07F 1500

Patent

active

057102988

ABSTRACT:
Methods of preparing carbene compounds of the formula ##STR1## are disclosed wherein M is Os or Ru; R and R.sup.1 are independently selected from hydrogen and a functional group selected from the group consisting of C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkyl, aryl, C.sub.1 -C.sub.20 carboxylate, C.sub.2 -C.sub.20 alkoxy, C.sub.2 -C.sub.20 alkenyloxy, C.sub.2 -C.sub.20 alkynyloxy, aryloxy, C.sub.2 -C.sub.20 alkoxycarbonyl, C.sub.1 -C.sub.20 alkylthio, C.sub.1 -C.sub.20 alkylsulfonyl or C.sub.1 -C.sub.20 alkylsulfinyl; each optionally substituted with C.sub.1 -C.sub.5 alkyl, a halogen, C.sub.1 -C.sub.5 alkoxy or with a phenyl group optionally substituted with a halogen, C.sub.1 -C.sub.5 alkyl or C.sub.1 -C.sub.5 alkoxy; X and X.sup.1 are independently selected from any anionic ligand; and L and L.sup.1 are independently selected from any neutral electron donor, preferably phosphine, sulfonated phosphine, phosphite, phosphinite, phosphonite, arsine, stibine, ether, amine, amide, sulfoxide, carboxyl, nitrosyl, pyridine and thioether. Methods for using these carbene compounds to catalyze olefin metathesis reactions are also disclosed.

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