Observation of zwitterionic d0 zirconium-alkyl-alkene chelates: Models for intermediates in metallocene-catalyzed alkene polymerizations [19]

Journal of the American Chemical Society

Volumn 121, Issue 40, 1999, Pages 9483-9484

  Casey, Charles P ^a   Carpenetti II, Donald W ^a   Sakurai, Hidehiro ^a  

^a UNIVERSITY OF WISCONSIN MADISON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE DERIVATIVE; AMPHOLYTE; METAL CHELATE; ZIRCONIUM;

CATALYSIS; CATALYST; CHEMICAL REACTION; CHEMICAL STRUCTURE; LETTER; POLYMERIZATION; REACTION ANALYSIS;

EID: 0033552276     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9919837     Document Type: Letter

References (24)

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2. For reviews of metallocene-catalyzed alkene polymerization, see: (a) Jordan, R. F. Adv. Organomet. Chem. 1991, 32, 325. (b) Brintzinger, H. H.; Fisher, D.; Mülhaupt, R.; Rieger, B.; Waymouth, R. M. Angew. Chem., Int. Ed. Engl. 1995, 34, 1143. (c) Marks, T. J. Acc. Chem. Res. 1992, 25, 57. (d) Bochmann, M. J. Chem. Soc., Dalton Trans. 1996, 255.
3. For reviews of metallocene-catalyzed alkene polymerization, see: (a) Jordan, R. F. Adv. Organomet. Chem. 1991, 32, 325. (b) Brintzinger, H. H.; Fisher, D.; Mülhaupt, R.; Rieger, B.; Waymouth, R. M. Angew. Chem., Int. Ed. Engl. 1995, 34, 1143. (c) Marks, T. J. Acc. Chem. Res. 1992, 25, 57. (d) Bochmann, M. J. Chem. Soc., Dalton Trans. 1996, 255.
4. For reviews of metallocene-catalyzed alkene polymerization, see: (a) Jordan, R. F. Adv. Organomet. Chem. 1991, 32, 325. (b) Brintzinger, H. H.; Fisher, D.; Mülhaupt, R.; Rieger, B.; Waymouth, R. M. Angew. Chem., Int. Ed. Engl. 1995, 34, 1143. (c) Marks, T. J. Acc. Chem. Res. 1992, 25, 57. (d) Bochmann, M. J. Chem. Soc., Dalton Trans. 1996, 255.
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6. -]. (a) Sinn, H.; Kaminsky, W. Adv. Organomet. Chem. 1980, 18, 99. (b) Bochmann, M.; Jaggar, A. J.; Nicholls, J. C. Angew. Chem., Int. Ed. Engl. 1990, 29, 780. (c) Chien, J. C. W.; Tsai, W.-M; Rausch, M. D. J. Am. Chem. Soc. 1991, 113, 8570. (d) Yang, X.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1994, 116, 10015.
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21. 1H NMR data for the reaction of 4 with dimethylanilinium tetrakis-(pentafluorophenyl)borate are provided in Supporting Information.
22. Complete NMR data for 4, 5a,b, and 6 are provided as Supporting Information.
23. Casey, C. P.; Fagan, M. A.; Fisher, J. J. Unpublished results. The diastereotopic Cp* resonances of 1 decoalesce below -130 °C.
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