Thermally activated olefin metathesis catalyst precursor

Details Thermally activated olefin metathesis catalyst precursor Thermally activated olefin metathesis catalyst precursor

1993-12-29

1997-06-17

Nazario-Gonzales, Porfirio

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

Organic compounds

Heavy metal containing

556 58, 502162, C07F 1100, B01J 3100

Patent

active

056399006

ABSTRACT:
Molybdenum and tungsten compounds that are useful as catalyst precursors in the metathesis of olefins have the general formula:

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Fox, H.H. et al., "Synthesis of Five- and Six-Coordinate Alkylidene Complexes of the Type Mo (CHR)(NAr)[OCMe(CF.sub.3).sub.2 ].sub.2 S.sub.x and Their Use as Living ROMP Initiators or Wittig Reagents", Organometallics, 12 (1993), pp. 759-768.
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Quignard, F. et al., "Synthesis and Catalytic Properties of W(OAr).sub.2 Cl .sub.2 (CHCMe.sub.3) (OR.sub.2) and W(OAr).sub.2 Cl(CHCMe.sub.3) (CH.sub.2 CMe.sub.3) (OR.sub.2) (Ar=2, 6-disubstituted phenyl; R=Et or Pr.sup.i) , New Unicomponent Catalysts for Metathesis of Acyclic and Cyclic Olefins, with or without Functional Groups", J. Chem. Soc., Chem. Commun., 1985, pp. 1816-1817.
Kress J. and Osborn, J.A., "Tungsten Carbene Complexes in Olefin Metathesis: A Cationic and Chiral Active Species", J. Am. Chem. Soc., 105 (1983), pp. 6346-6347.
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Quignard, F. et al., "Aryloxide Ligands in Metathesis of Olefins and Olefinic Esters: Catalytic Behaviour of W(OAr).sub.2 C1.sub.4 Complexes Associated with Alkyl-Tin or Alkyl-Lead Co-catalysts; Alkylation of W (OAr).sub.2 Cl.sub.4 by SnMe.sub.4, Sn (n-Bu).sub.4, Pb (n-Bu).sub.4, Mg Np.sub.2 : Synthesis of W(OAR).sub.2 Cl.sub.2 (CHCMe.sub.3) and W(OAr).sub.2 Cl(CHCMe.sub.3)(CH.sub.2 CMe.sub.3)(OR.sub.2)", J. Molecular Catalysis, 36 (1986), pp. 13-29.
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Fu, G.C. and Grubbs, R.H., "The Application of Catalytic Ring-Closing Olefin Metathesis to the Synthesis of Unsaturated Oxygen Heterocycles", J. Am. Chem. Soc., 114 (1992), pp. 5426-5427.
Ser. No. 08/174,994, filed Dec. 29, 1993, Bell Case 10, "Olefin Metathesis Catalyst Precursors Activated with Alcohols and Phenols".

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