Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide

Prabhjot K. Saini; Giulia Fiorani; Robert T. Mathers; Charlotte K. Williams

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Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide

机译：锌与镁：环氧化物，生物衍生的酸酐和二氧化碳选择性聚合中的正交催化剂反应性

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Developing selective polymerizations from complex monomer mixtures is an important challenge. Here, dinuclear catalysts allow selective polymerization from mixtures of sterically hindered tricyclic anhydrides, carbon dioxide and epoxides to yield well-controlled copoly(estercarbonates). Surprisingly, two very similar homogeneous catalysts differing only in the central metal, zinc versus magnesium, show very high but diametrically opposite monomer selectivity. The selectivity is attributed to different polymerization kinetics and to steric factors associated with the anhydrides.

机译：来自复合单体混合物的选择性聚合是一种重要的挑战。这里，二核催化剂允许从空间妨碍三环酸酐，二氧化碳和环氧化物的混合物中选择性聚合，得到良好控制的共聚（酯碳酸盐）。令人惊讶的是，两个非常相似的均质催化剂仅在中央金属，镁与镁中不同，表现出非常高但径向相对的单体选择性。选择性归因于不同的聚合动力学和与酸酐相关的空间因子。

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来源
《Chemistry: A European journal》 |2017年第18期|共6页
作者
Prabhjot K. Saini; Giulia Fiorani; Robert T. Mathers; Charlotte K. Williams;
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作者单位

Department of Chemistry Imperial College London London SW7 2AZ (UK);

Department of Chemistry University of Oxford Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA (UK);

Department of Chemistry The Pennsylvania State University New Kensington Pennsylvania 15068 (USA);

Department of Chemistry University of Oxford Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA (UK);

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原文格式 PDF
正文语种 eng
中图分类应用化学;
关键词
carbon dioxide; epoxides; ring-opening polymerization; terpenes; tricyclic anhydrides;

机译：二氧化碳;环氧化物;开环聚合;Terpenes;三环酸酐;

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1. Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide [J] . Prabhjot K. Saini, Giulia Fiorani, Robert T. Mathers, Chemistry: A European journal . 2017,第18期

机译：锌与镁：环氧化物，生物衍生的酸酐和二氧化碳选择性聚合中的正交催化剂反应性
2. Differences in Reactivity of Epoxides in the Copolymerisation with Carbon Dioxide by Zinc-Based Catalysts: Propylene Oxide versus Cyclohexene Oxide [J] . Maximilian W. Lehenmeier, Christian Bruckmeier, Stephan Klaus, Chemistry - A European Journal . 2011,第32期

机译：锌基催化剂与二氧化碳共聚时环氧反应性的差异：环氧丙烷与环氧环己烷
3. Differences in reactivity of epoxides in the copolymerisation with carbon dioxide by zinc-based catalysts: Propylene oxide versus cyclohexene oxide [J] . Lehenmeier M.W., Bruckmeier C., Klaus S., Chemistry: A European journal . 2011,第32期

机译：锌基催化剂与二氧化碳共聚中环氧化物的反应性差异：环氧丙烷与环氧环己烯
4. Asymmetric Alternating Copolymerization of meso-Epoxide and Carbon Dioxide Catalyzed by Chiral Dimeric Zinc Complexes [C] . Koii Nakano, Kyoko Nozaki, Tamejiro Hiyama Symposium on Organometallic Chemistry . 2003

机译：细胞二聚体锌络合物催化的中氧化物和二氧化碳的不对称交替共聚
5. Alternating copolymerization of epoxides and carbon dioxide using single-site beta-diiminate zinc catalysts: Subtle modifications resulting in superior activities and evidence for a bimetallic epoxide enchainment. [D] . Moore, David Roger. 2003

机译：使用单中心β-二氨基锌催化剂交替进行环氧化合物和二氧化碳的共聚：细微的修饰导致优异的活性，并证明了双金属环氧化物的链结。
6. Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides Bio‐derived Anhydrides and Carbon Dioxide [O] . Dr. Prabhjot K. Saini, Dr. Giulia Fiorani, Prof. Robert T. Mathers, -1

机译：锌与镁：环氧生物衍生酸酐和二氧化碳的选择性聚合中的正交催化剂反应性
7. Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide [O] . Saini, Prabhjot K., Fiorani, Giulia, Mathers, Robert T., 2017

机译：锌与镁：环氧，生物衍生的酸酐和二氧化碳的选择性聚合中的正交催化剂反应性
8. Vanadium-Phosphorus-Oxygen Industrial Catalysts for C sub 4 Hydrocarbon Selective Oxidation to Maleic Anhydride [R] . Wenig, R. W. 1987

机译：用于C sub 4烃选择性氧化成马来酸酐的钒 - 磷 - 氧工业催化剂

Zinc versus Magnesium: Orthogonal Catalyst Reactivity in Selective Polymerizations of Epoxides, Bio-derived Anhydrides and Carbon Dioxide

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