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Magnesium complexes supported by pyrrolyl ligands: syntheses,characterizations, and catalytic activities towards the polymerizationof epsilon-caprolactone
Lin, Miaoshui; Liu, Wei; Chen, Zhou; Yang, Lijuan; Pei, Hao; Wu, Jian; Wan, Xiaoyu; Lei, Tao; Li, Yahong
2012
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume2Issue:8Pages:3451-3457
AbstractThe syntheses, structures and catalytic activities of five magnesium complexes supported by HL1 (HL1 = N-(1H-pyrrol-2-ylmethylene)(2-pyridinyl)methanimine), HL2 (HL2 = N-(1H-pyrrol-2-ylmethylene)-2-pyridineethanimine), HL3 (HL3 = 2-pyrrolecarbaldmethylimine), HL4 (HL4 = N-((1H-pyrrol-2-yl)methylene)(phenyl)methanimine) and HL5 (HL5 = N-((1H-pyrrol-2-yl)methylene)-2-phenylethanimine) are described. Treatment of (MgBu2)-Bu-n with 2 equiv. of HL1, HL2, HL3, HL4 and HL5, respectively, results in the formation of Mg(L1)(2) (1), Mg(L2)(2) (2), Mg(L3)(2)(THF)(2) (3), Mg(L4)(2)(THF)(2) (4) and Mg(L5)(2)(THF)(2) (5). All complexes have been characterized by elemental analyses and NMR studies. The solid-state structures of complexes 2, 3, and 4 have been further established by single X-ray crystallography. All complexes were found to be active catalysts for the ring-opening polymerization of epsilon-caprolactone. The syntheses, structures and catalytic activities of five magnesium complexes supported by HL1 (HL1 = N-(1H-pyrrol-2-ylmethylene)(2-pyridinyl)methanimine), HL2 (HL2 = N-(1H-pyrrol-2-ylmethylene)-2-pyridineethanimine), HL3 (HL3 = 2-pyrrolecarbaldmethylimine), HL4 (HL4 = N-((1H-pyrrol-2-yl)methylene)(phenyl)methanimine) and HL5 (HL5 = N-((1H-pyrrol-2-yl)methylene)-2-phenylethanimine) are described. Treatment of (MgBu2)-Bu-n with 2 equiv. of HL1, HL2, HL3, HL4 and HL5, respectively, results in the formation of Mg(L1)(2) (1), Mg(L2)(2) (2), Mg(L3)(2)(THF)(2) (3), Mg(L4)(2)(THF)(2) (4) and Mg(L5)(2)(THF)(2) (5). All complexes have been characterized by elemental analyses and NMR studies. The solid-state structures of complexes 2, 3, and 4 have been further established by single X-ray crystallography. All complexes were found to be active catalysts for the ring-opening polymerization of epsilon-caprolactone.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/2081
Collection青海盐湖研究所知识仓储
Recommended Citation
GB/T 7714
Lin, Miaoshui,Liu, Wei,Chen, Zhou,et al. Magnesium complexes supported by pyrrolyl ligands: syntheses,characterizations, and catalytic activities towards the polymerizationof epsilon-caprolactone[J]. RSC ADVANCES,2012,2(8):3451-3457.
APA Lin, Miaoshui.,Liu, Wei.,Chen, Zhou.,Yang, Lijuan.,Pei, Hao.,...&Li, Yahong.(2012).Magnesium complexes supported by pyrrolyl ligands: syntheses,characterizations, and catalytic activities towards the polymerizationof epsilon-caprolactone.RSC ADVANCES,2(8),3451-3457.
MLA Lin, Miaoshui,et al."Magnesium complexes supported by pyrrolyl ligands: syntheses,characterizations, and catalytic activities towards the polymerizationof epsilon-caprolactone".RSC ADVANCES 2.8(2012):3451-3457.
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