Polymerization of ε-caprolactone using bulky alkoxo-titanium complexes and structural analysis of [Ti(OBorneoxo)2Cl2(thf)2]

被引：14

作者：

Perez, Yolanda

del Hierro, Isabel

Sierra, Isabel

Gomez-Sal, Pilar

Fajardo, Mariano

Otero, Antonio

机构：

[1] Univ Rey Juan Carlos, Dept Tecnol Quim & Ambiental, ESCET, Madrid 28933, Spain

[2] Univ Rey Juan Carlos, Dept Quim Inorgan & Analit, ESCET, Madrid 28933, Spain

[3] Univ Castilla La Mancha, Fac Ciencias Quim, Dept Quim Inorgan Organ & Bioquim, E-13071 Ciudad Real, Spain

[4] Univ Alcala de Henares, Dept Quim Inorgan, E-28871 Alcala De Henares, Spain

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2006年 / 691卷 / 13期

关键词：

titanium; alkoxo; ring opening polymerization; epsilon-caprolactone; X-ray structure determination;

D O I：

10.1016/j.jorganchem.2006.03.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A variety of bisalkoxo titanium dichloride THF adducts [Ti(OR)(2)Cl-2(thf)(2)] {OR = adamantanoxo (9), (1R,2S,5R)-(-)-menthoxo (10), (1S-endo)-(-)-borneoxo (11)} have been prepared and characterized by spectroscopic techniques. The molecular structure of It has been determined by single-crystal X-ray diffraction studies. The parent Lewis acid bisalkoxo titanium dichloride derivatives and related alkoxo complexes [Ti(OR)(2)(OPri)(2)](2) have been tested as initiators in ring-opening polymerization of epsilon-caprolactone and L-lactide. (c) 2006 Elsevier B.V. All rights reserved.

引用

收藏

页码：3053 / 3059

页数：7

相关论文

共 39 条

[21] Methods for the synthesis of the Diels-Alder catalysts (ArO)2TiX2 (X = Cl, Br, I; Ar=2-tert-butyl-6-methylphenyl) [J].

Santora, BP ;

White, PS ;

Gagné, MR .

ORGANOMETALLICS, 1999, 18 (13) :2557-2560

[22] Titanium, zinc and alkaline-earth metal complexes supported by bulky O,N,N,O-multidentate ligands:: syntheses, characterisation and activity in cyclic ester polymerisation [J].

Sarazin, Y ;

Howard, RH ;

Hughes, DL ;

Humphrey, SM ;

Bochmann, M .

DALTON TRANSACTIONS, 2006, (02) :340-350

[23] Syntheses of bis- and tetra(trimethylsilyl) substituted lanthanocene methyl complexes and their catalyses for polymerizations of methyl methacrylate, ε-caprolactone and L-lactide [J].

Satoh, Y ;

Ikitake, N ;

Nakayama, Y ;

Okuno, S ;

Yasuda, H .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2003, 667 (1-2) :42-52

[24]

Sheldrick G M, 1997, SHELXS 97 PROGRAM CR

[25] Kinetics and mechanism of epsilon-caprolactone polymerization using yttrium alkoxides as initiators [J].

Stevels, WM ;

Ankone, MJK ;

Dijkstra, PJ ;

Feijen, J .

MACROMOLECULES, 1996, 29 (26) :8296-8303

[26] Interaction of titanium(III) zwitterionic complex Cp[η5-C5H4B(C6F5)3]Ti with organic halides:: Synthesis and X-ray crystal monohalides catalytic activity structure determination of zwitterionic titanocene Cp[η5-C5H4B(C6F5)3]TiX (X = Cl, Br) and their in the ring-opening polymerization of ε-caprolactone [J].

Strunkina, LI ;

Minacheva, MK ;

Lyssenko, KA ;

Burlakov, VV ;

Baumann, W ;

Arndt, P ;

Strunin, BN ;

Shur, VB .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2006, 691 (04) :557-565

[27] Bis(amido)titanium complexes having chelating diaryloxo ligands bridged by sulfur or methylene and their catalytic behaviors for ring-opening polymerization of cyclic esters [J].

Takashima, Y ;

Nakayama, Y ;

Hirao, T ;

Yasuda, H ;

Harada, A .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2004, 689 (03) :612-619

[28] Polymerizations of cyclic esters catalyzed by titanium complexes having chalcogen-bridged chelating diaryloxo ligands [J].

Takashima, Y ;

Nakayama, Y ;

Watanabe, K ;

Itono, T ;

Ueyama, N ;

Nakamura, A ;

Yasuda, H ;

Harada, A ;

Okuda, J .

MACROMOLECULES, 2002, 35 (20) :7538-7544

[29] Bulky titanium bis(phenolate) complexes as novel initiators for living anionic polymerization of ε-caprolactone [J].

Takeuchi, D ;

Nakamura, T ;

Aida, T .

MACROMOLECULES, 2000, 33 (03) :725-729

[30]

Takeuchi D, 2000, MACROMOL CHEM PHYS, V201, P2267, DOI 10.1002/1521-3935(20001101)201:17<2267::AID-MACP2267>3.0.CO

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