Salalen: A hybrid Salan/Salen tetradentate [ONNO]-type ligand and its coordination behavior with group IV metals

Inorganic Chemistry Communications

Volumn 7, Issue 2, 2004, Pages 280-282

  Yeori, Adi ^a   Gendler, Shimrit ^a   Groysman, Stanislav ^a   Goldberg, Israel ^a   Kol, Moshe ^a  

^a TEL AVIV UNIVERSITY   (Israel)

Author keywords

Salalen; Salan; Salen; Titanium; Zirconium

Indexed keywords

COORDINATION COMPOUND; METAL DERIVATIVE; PHENOL DERIVATIVE; TETRAKIS(DIMETHYLAMIDO)ZIRCONIUM; TITANIUM DERIVATIVE; TITANIUM ETHOXIDE; UNCLASSIFIED DRUG; ZIRCONIUM DERIVATIVE;

ARTICLE; HYBRID; ISOMER;

EID: 0842342455     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.inoche.2003.11.023     Document Type: Article

References (22)

1. For a recent review on non-metallocene polymerisation catalysts, see: Gibson V.C., Spitzmesser S.K. Chem. Rev. 103:2003;283.
2. For a recent review on olefin polymerisation catalysts featuring phenoxy-based ligands, see: Suzuki Y., Terao H., Fujita T. Bull. Chem. Soc. Jpn. 76:2003;1493.
3. Tshuva E.Y., Goldberg I., Kol M. J. Am. Chem. Soc. 122:2000;10706.
4. For application of these Salan catalysts in tactic propylene polymerisation and in block copolymerisation, see: Busico V., Cipullo R., Ronca S., Budzelaar P.H.M. Macromol. Rapid Commun. 22:2001;1405.
5. Busico V., Cipullo R., Friederichs N., Ronca S., Togrou M. Macromolecules. 36:2003;3806.
6. For Salen coordination around titanium, see for example: Gilli G., Cruickshank D.W.J., Beddoes R.L., Mills O.S. Acta Cryst. 28:1972;1889.
7. For trans-dichloro hepta-coordinate Salen zirconium complex, that presumably changes coordination upon activation, see: Repo T., Klinga M., Pietikäinen P., Leskelä M., Uusitalo A.-M., Pakkanen T., Hakala K., Aaltonen P., Löfgren B. Macromolecules. 30:1997;171.
8. Tian J., Coates G.W. Angew. Chem. Int. Ed. 39:2000;3626.
9. Saito J., Mitani M., Mohri J., Ishii S., Yoshida Y., Matsugi T., Kojoh S., Kashiwa N., Fujita T. Chem. Lett. 2001;576.
10. Talarico G., Busico V., Cavallo L. J. Am. Chem. Soc. 125:2003;7172.
11. Several reports on late transition metal complexes (Mn, Co, Ni) of related ligands have appeared. See for example: Berkessel A., Frauenkron M., Schwenkreis T., Steinmetz A. J. Mol. Catal. A. 117:1997;339.
12. Boettcher A., Elias H., Eisenmann B., Hilms E., Huber A., Kniep R., Roehr C., Zehnder M., Neuberger M., Springborg J., Naturfosch Z. B: Chem. Sci. 49:1994;1089.
13. Tshuva E.Y., Gendeziuk N., Kol M. Tetrahedron Lett. 42:2001;6405.
14. 2: C, 77.90; H, 10.30; N, 5.51. Found: C, 77.83; H, 10.18; N, 5.46%.
15. 2: C, 78.11; H, 10.41; N, 5.36. Found: C, 78.14; H, 10.18; N, 5.65%.
16. García-Zarracino R., Ramos-Quiñones J., Höpfl H. J. Organomet. Chem. 664:2002;188.
17. 4Ti: C, 68.93; H, 9.38; N, 4.34. Found: C, 68.63; H, 9.09; N, 4.52%.
18. 2=0.1935 for all 6938 unique reflections.
19. 6): δ 7.73 (d, J=2.5 Hz, 1H), 7.46 (d, J=2.3 Hz, 1H), 7.42 (s, 1H), 7.00 (d, J=2.5 Hz, 1H), 6.96 (d, J=2.3 Hz, 1H), 4.50 (d, J=13.4 Hz, 1H, AB system), 3.41 (s, 6H), 3.24 (m, 1H), 2.92 (s, 6H), 2.92 (d, J=13.4 Hz, 1H, AB system), 2.59 (m, 1H), 2.31 (m, 1H), 2.25 (s, 3H), 1.77 (s, 9H), 1.38 (s, 9H), 1.36 (m, 1H), 1.33 (s, 9H), 1.31 (s, 9H).
20. 2=0.1157 for all 9026 unique reflections.
21. Balsells J., Carroll P.J., Walsh P.J. Inorg. Chem. 40:2001;5568.
22. S. Segal, M. Kol, unpublished results.