Trimetallic yttrium N-(2-methylquinolin-8-yl)benzamides: synthesis, structure and use in ring-opening polymerization (ROP) of ε-caprolactone

被引：20

作者：

Zhang, Wenjuan ^{[1
,2
]}

Liu, Shaofeng ^{[1
,2
]}

Sun, Wen-Hua ^{[1
,2
,3
]}

Hao, Xiang ^{[1
,2
]}

Redshaw, Carl ^{[4
]}

机构：

[1] Chinese Acad Sci, Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China

[4] Univ E Anglia, Sch Chem, Norwich NR4 7TJ, Norfolk, England

来源：

NEW JOURNAL OF CHEMISTRY | 2012年 / 36卷 / 11期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

HALF-TITANOCENE CHLORIDES; ETHYLENE POLYMERIZATION; LACTIDE POLYMERIZATION; CYCLIC ESTERS; ORGANOMETALLIC COMPLEXES; LANTHANIDE METALS; ALKYL COMPLEXES; INITIATORS; LIGANDS; CHEMISTRY;

D O I：

10.1039/c2nj40711f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of trimetallic yttrium complexes, L7Y3Cl2 [L = N-(2-methylquinolin-8-yl)-p-R-benzamides, 1: R = H; 2: R = OMe; 3: R = Me; 4: R = Cl], has been synthesized by the stoichiometric reaction of YCl3(THF)(2) with the corresponding potassium amidates. All complexes have been characterized by elemental analysis and NMR spectroscopy. The molecular structure of complex 1 bearing seven amidate ligands was confirmed by single-crystal X-ray diffraction. Screening of these complexes, in the presence of BnOH, for ring-opening polymerization of caprolactone (epsilon-CL) revealed effective activities.

引用

页码：2392 / 2396

页数：5

共 54 条

[1]

[Anonymous], 2015, Acta Crystallogr., V71, P3

[2] Metal catalysts for ε-caprolactone polymerisation [J].

Arbaoui, Abdessamad ;

Redshaw, Carl .

POLYMER CHEMISTRY, 2010, 1 (06) :801-826

[3] Cationic alkyl complexes of the rare-earth metals: Synthesis, structure, and reactivity [J].

Arndt, S ;

Okuda, J .

ADVANCED SYNTHESIS & CATALYSIS, 2005, 347 (2-3) :339-354

[4] Yttrium alkyl and benzyl complexes with amino-amidinate monoanionic ancillary ligands [J].

Bambirra, S ;

Brandsma, MJR ;

Brussee, EAC ;

Meetsma, A ;

Hessen, B ;

Teuben, JH .

ORGANOMETALLICS, 2000, 19 (16) :3197-3204

[5] One ligand fits all: Cationic mono(amidinate) alkyl catalysts over the full size range of the group 3 and lanthanide metals [J].

Bambirra, S ;

Bouwkamp, MW ;

Meetsma, A ;

Hessen, B .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (30) :9182-9183

[6] Aluminum Complexes of Fluorinated β-Diketonate Ligands: Syntheses, Structures, Intramolecular Reduction, and Use in Ring-Opening Polymerization of Lactide [J].

Bouyahyi, Miloud ;

Roisnel, Thierry ;

Carpentier, Jean-Francois .

ORGANOMETALLICS, 2010, 29 (02) :491-500

[7] Iminophosphorane Neodymium(III) Complexes As Efficient Initiators for Lactide Polymerization [J].

Buchard, Antoine ;

Platel, Rachel H. ;

Auffrant, Audrey ;

Le Goff, Xavier F. ;

Le Floch, Pascal ;

Williams, Charlotte K. .

ORGANOMETALLICS, 2010, 29 (13) :2892-2900

[8] Controlled polymerization of DL-lactide and ε-caprolactone by structurally well-defined alkoxo-bridged di- and triyttrium(III) complexes [J].

Chamberlain, BM ;

Jazdzewski, BA ;

Pink, M ;

Hillmyer, MA ;

Tolman, WB .

MACROMOLECULES, 2000, 33 (11) :3970-3977

[9] Magnesium complexes containing bis-amido-oxazolinate ligands as efficient catalysts for ring opening polymerisation of L-lactide [J].

Chen, Ming-Tsz ;

Chang, Ping-Jung ;

Huang, Chi-An ;

Peng, Kuo-Fu ;

Chen, Chi-Tien .

DALTON TRANSACTIONS, 2009, (41) :9068-9074

[10] Well-defined calcium initiators for lactide polymerization [J].

Chisholm, MH ;

Gallucci, JC ;

Phomphrai, K .

INORGANIC CHEMISTRY, 2004, 43 (21) :6717-6725

← 1 2 3 4 5 6 →