Reactions of (E)-N-[2-(benzyliminomethyl)phenyl]-2,6-diisopropylaniline with diethylzinc: Synthesis, characterization and catalytic studies for ring-opening polymerization of ε-caprolactone

Inorganic Chemistry Communications

Volumn 14, Issue 9, 2011, Pages 1456-1460

  Wang, Chao Hsiang ^a   Li, Chen Yu ^a   Lin, Chia Her ^a   Liu, Yi Chang ^a   Ko, Bao Tsan ^a  

^a CHUNG YUAN CHRISTIAN UNIVERSITY   (Taiwan)

Author keywords

caprolactone; Anilido aldimine; Catalyst; NN bidentate; Ring opening polymerization; Zinc complex

Indexed keywords

EID: 79960773130     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.inoche.2011.05.046     Document Type: Article

References (21)

1. P.G. Hayes, G.C. Welch, D.J.H. Emslie, C.L. Noack, W.E. Piers, and M. Parvez A new chelating anilido-imine donor related to β-diketiminato ligands for stabilization of organoyttrium cations Organometallics 22 2003 1577 1579
2. X. Liu, W. Gao, Y. Mu, G.-H. Li, L. Ye, H. Xia, Y. Ren, and S.-H. Feng Dialkylaluminum complexes with chelating anilido-imine ligands: synthesis, structures, and luminescent properties Organometallics 24 2005 1614 1619 (Pubitemid 40448881)
3. 2 adduct supported by an anilido imine ligand Inorg. Chem. 44 2005 6989 6997 (Pubitemid 41475973)
4. D.J. Doyle, V.C. Gibson, and A.J.P. White Synthesis and structures of bimetallic and polymeric zinc coordination compounds supported by salicylaldiminato and anilido-aldimine ligands Dalton Trans. 2007 358 368
5. Q. Su, W. Gao, Q.-L. Wu, L. Ye, G.-H. Li, and Y. Mu Syntheses, characterization, and luminescent properties of monoethylzinc complexes with anilido-imine ligands Eur. J. Inorg. Chem. 2007 4168 4175
6. K. Pang, Y. Rong, and G. Parkin Molecular structures of three coordinate zinc and cadmium complexes that feature β-diketiminato and anilido-imine ligands Polyhedron 29 2010 1881 1890
7. 2 copolymerization J. Am. Chem. Soc. 127 2005 3031 3037 (Pubitemid 40349883)
8. 2/(cyclohexene oxide) copolymerization Inorg. Chem. 45 2006 4228 4237
9. X. Shang, X. Liu, and D. Cui Yttrium bis(alkyl) and bis(amido) complexes bearing N,O multidentate ligands. Synthesis and catalytic activity towards ring-opening polymerization of L-lactide J. Polym. Sci. A Polym. Chem. 45 2007 5662 5672 (Pubitemid 350190745)
10. W. Yao, Y. Mu, A. Gao, W. Gao, and L. Ye Bimetallic anilido-aldimine Al or Zn complexes for efficient ring-opening polymerization of ε-caprolactone Dalton Trans. 2008 3199 3206
11. W. Gao, D. Cui, X. Liu, Y. Zhang, and Y. Mu Rare-earth metal bis(alkyl)s supported by a quinolinyl anilido-imine ligand: synthesis and catalysis on living polymerization of ε-caprolactone Organometallics 27 2008 5889 5893
12. Y.-H. Tsai, C.-H. Lin, C.-C. Lin, and B.-T. Ko Tridentate anilido-aldimine magnesium and zinc complexes as efficient catalysts for ring-opening polymerization of ε-caprolactone and L-lactide J. Polym. Sci. A Polym. Chem. 47 2009 4927 4936
13. Y.-C. Liu, C.-H. Lin, B.-T. Ko, and R.-M. Ho Ring-opening polymerization of β-butyrolactone catalyzed by efficient magnesium and zinc complexes derived from tridentate anilido-aldimine ligand J. Polym. Sci. A Polym. Chem. 48 2010 5339 5347
14. Y.-C. Liu, C.-H. Lin, H.-L. Chen, and B.-T. Ko (E)-N-[2- (Benzyliminomethyl)phenyl]-2,6-diisopropylaniline Acta Cryst. E65 2009 o2791
15. 3).
16. 2).
17. max = 56.54° 43902 reflections collected, 12027 unique [R(int) = 0.0528], no. of observed reflections 8642 (I > 2σ(I)); R1 = 0.0625, wR2 = 0.1362.
18. max = 56.62° 28445 reflections collected, 8024 unique [R(int) = 0.0401], no. of observed reflections 6528 (I > 2σ(I)); R1 = 0.0357, wR2 = 0.0944.
19. max = 56.66° 38127 reflections collected, 10650 unique [R(int) = 0.0250], no. of observed reflections 9483 (I > 2σ(I)); R1 = 0.0307, wR2 = 0.0778.
20. C.-Y. Tsai, C.-Y. Li, C.-H. Lin, B.-H. Huang, and B.-T. Ko Reactions of 4-methylidene-bis(1-phenyl-3-methylpyrazol-5-one) with trimethylaluminum: synthesis, structure and catalysis for the ring-opening polymerization of ε-caprolactone Inorg. Chem. Comm. 14 2011 271 275
21. The Mn (GPC) value is multiplied by a factor of 0.56, giving the actual Mn of the poly(ε-caprolactone), see: M. Save, M. Schappacher, A. Soum, Controlled ring-opening polymerization of lactones and lactides initiated by lanthanum isopropoxide, 1. general aspects and kinetics Macromol. Chem. Phys. 203 2002 889 899