Title:
IMIDO-TETHERED CARBENES OF MOLYBDENUM FOR RING-OPENING METATHESIS POLYMERISATION AND RING-CLOSING METATHESIS
Document Type and Number:
WIPO Patent Application WO2005086622
Kind Code:
A3
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 ?
Inventors:
ODOM AARON L (US)
CISZEWSKI JAMES T (US)
CISZEWSKI JAMES T (US)
Application Number:
PCT/US2004/034410
Publication Date:
June 22, 2006
Filing Date:
October 19, 2004
Export Citation:
Assignee:
UNIV MICHIGAN STATE (US)
ODOM AARON L (US)
CISZEWSKI JAMES T (US)
ODOM AARON L (US)
CISZEWSKI JAMES T (US)
International Classes:
B01J31/18; B01J31/16; B01J31/22; C07F11/00
Foreign References:
| US6121473A | 2000-09-19 | |||
| US5639900A | 1997-06-17 |
Other References:
OSKAM J H ET AL: "Ligand vriation in alkylidene complexes of the type Mo(CHR)(NR')(OR")2.", JOURNAL OF ORGANOMETALLIC CHEMISTRY., vol. 459, no. 1-2, 1993, pages 185 - 198, XP003001695
GIBSON V C ET AL: "Synthesis, characterization and reactivity of the molybdenum(VI) dimethyl complex [Mo(NR)2Me2](R=2,6-Pri2C6H3).", JOURNAL OF CHEMICAL SOCIETY, DALTON TRANSACTIONS., vol. 2, 1999, pages 161 - 165, XP002999969
ALEXANDER J B.: "Catalytic Enantioselective Ring-Closing Metathesis by a Chiral Biphen Mo Complex.", JOURNAL OF AMERICAN CHEMICAL SOCIETY., vol. 120, no. 16, 1998, pages 4041 - 4042, XP002102157
GIBSON V C ET AL: "Synthesis, characterization and reactivity of the molybdenum(VI) dimethyl complex [Mo(NR)2Me2](R=2,6-Pri2C6H3).", JOURNAL OF CHEMICAL SOCIETY, DALTON TRANSACTIONS., vol. 2, 1999, pages 161 - 165, XP002999969
ALEXANDER J B.: "Catalytic Enantioselective Ring-Closing Metathesis by a Chiral Biphen Mo Complex.", JOURNAL OF AMERICAN CHEMICAL SOCIETY., vol. 120, no. 16, 1998, pages 4041 - 4042, XP002102157
Download PDF: