Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-07-31
2007-07-31
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S057000, C556S058000, C548S402000, C585S645000, C502S152000, C502S155000, C502S162000, C564S322000, C564S441000
Reexamination Certificate
active
10691328
ABSTRACT:
Compounds and processes for catalytic ring-opening cyclooligomerization metathesis and ring-closing metathesis of olefins are described. The compound is a molybdenum or tungsten metal (M) complex which comprises an imido ligand (N—R) bound to the M to provide an M=N—R site, an M=C reaction site wherein the C of the M=C reaction site is tethered to the R of the imido ligand via a carbon or carbon and heteroatom (NOS) chain containing 1 to 12 carbon atoms to form a ring structure, and two to four ligands (R′) bound to the M to provide two to four M-R′ sites. In particular embodiments, the M-R′ sites include each of the oxygens of a dialkoxide ligand or each of the nitrogens of an η1-pyrrolyl ligand bound to the M.
REFERENCES:
patent: 4727215 (1988-02-01), Schrock
patent: 5142073 (1992-08-01), Schrock et al.
patent: 6121473 (2000-09-01), Schrock et al.
patent: 6197715 (2001-03-01), Bansleben et al.
patent: 6313332 (2001-11-01), Grubbs et al.
patent: 6316555 (2001-11-01), Schrock et al.
patent: 6346652 (2002-02-01), Schrock et al.
patent: 6410664 (2002-06-01), Bansleben et al.
patent: 6414097 (2002-07-01), Grubbs et al.
patent: 6482908 (2002-11-01), Grubbs et al.
patent: 6486279 (2002-11-01), Lynn et al.
patent: 6504041 (2003-01-01), Grubbs et al.
patent: 6506704 (2003-01-01), Bansleben et al.
patent: 6515084 (2003-02-01), Grubbs et al.
patent: 2001/0041778 (2001-11-01), McConville et al.
Oskam et al., Journal of Organometallic Chemistry, vol. 459, No. 1-2, pp. 185-198 (1993).
Gibson et al., J. Chem. Soc., Dalton Trans., vol. 2, pp. 161-165 (1999).
Ciszewski et al., Synthesis and structure of an imido-tethered Schrock carbene of molybdenum, Dalton Trans., pp. 4226-4227, published on the web Sep. 25, 2003.
Alexander et al., J. Am. Chem. Soc. 120: 4041-4042 (1998).
La et al., J. Am. Chem. Soc. 120: 9720-9721 (1998).
Weatherhead et al., J. Am. Chem. Soc. 122: 1828-1829 (2000).
Cefalo et al., J. Am. Chem. Soc. 123: 3139-3140 (2001).
Hultzsch et al., Organometallics 20: 4705-4712 (2001).
Hultzsch et al., Agnew. Chem. Int. Ed. 41: 589-593 (2002).
Ciszewski James T.
Odom Aaron L.
Board of Trustees of Michigan State University
McLeod Ian C.
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