Thermally activated olefin metathesis catalyst precursor

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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:

REFERENCES:
patent: 3686136 (1972-08-01), Doyle
patent: 3691095 (1972-09-01), Kroll et al.
patent: 3849513 (1974-11-01), Doyle
patent: 4400340 (1983-08-01), Klosiewicz
patent: 4681956 (1987-07-01), Schrock
patent: 4727215 (1988-02-01), Schrock
patent: 5142073 (1992-08-01), Schrock et al.
Jean Pierre Le Ny et al., Organometallics, vol. 10, pp. 1546-1550 1990.
Muetterties et al., J. Am. Chem. Soc., vol. 102, No. 21, pp. 6572-6574 (1980).
Kress et al., J.C.S. Chem. Comm., No. 10, pp. 431-432 (1980).
Kress et al., J.C.S. Chem. Comm., No. 20, pp. 1039-1040 (1981).
Schrock, R.R.,"Metathesis Reactions Catalyzed by Well Characterized Transition Metal Alkylidene Complexes", The Strem Chemiker, vol. XIV, No. 1, Oct., 1992, pp. 1-6.
Schoettel, G. et al., "A Simple Route to Molybdenum-Carbene Catalysts for Alkene Metathesis", J. Chem. Soc., Chem. Commun., 1989, pp. 1062-1063.
Oskam, J.H. et al., "Ligand Variation in Alkylidene Complexes of the Type Mo(CHR)(NR')(OR").sub.2, J. Organometallic Chemistry, 459 (1993), pp. 185-198.
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.
Nugent, W.A. et al., "Reaction of Group 6 Organoimido Complexes with Organozinc, Reductive Elimination Across a Metal-Nitrogen Multiple Bond", J. Amer. Chem. Soc., 102 (1980), pp. 1759-1760.
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.
Schrock, R.R. et al., "Further Studies of Imido Alkylidene Complexes of Tungsten, Well-Characterized Olefin Metathesis Catalysts with Controllable Activity", Organometallics, 9 (1990), pp. 2262-2275.
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.
Kress, J. et al., "Tungsten (IV) Carbenes for the Metathesis of Olefins. Direct Observation and Identification of the Chain Carrying Carbene Complexes in a Highly Active Catalyst System", J. Chem. Soc., Chem. Commun., 1982, pp. 514-516.
Schrock, R.R. et al., "Synthesis of Molybdenum Imido Alkylidene Complexes and Some Reactions Involving Acyclic Olefins", J. Am. Chem. Soc., 112 (1990), pp. 3875-3886.
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".

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thermally activated olefin metathesis catalyst precursor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermally activated olefin metathesis catalyst precursor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally activated olefin metathesis catalyst precursor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2159030

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.