1
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Kumar R, Meher RK, Sharma J, Sau A, Panda TK. Amidophosphine Boranes as Hydroboration Reagents for Nitriles, Alkynes, and Carboxylic Acids. Org Lett 2023; 25:7923-7927. [PMID: 37883234 DOI: 10.1021/acs.orglett.3c03194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
We report here the hydroboration of nitriles, alkynes, and carboxylic acids using amidophosphine boranes {(BH3)(PPh2)-NC(CH3)3}, {(BH3)2(PPh)2N(CH2)C6H5}, and {(BH3)2(PPh2)2N-(BH3)CH2C6H4N} as reducing agents. These compounds were synthesized to replace more commonly used borane reagents. Solid amidophosphine boranes, which were synthesized with ease, demonstrated excellent reactivity and functional group tolerance toward a wide variety of nitriles, alkynes, and carboxylic acids, affording the corresponding ammonium salts, alkenes, and alcohols in good yield.
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502 284, Sangareddy, Telangana, India
| | - Rohan Kumar Meher
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502 284, Sangareddy, Telangana, India
| | - Jyoti Sharma
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502 284, Sangareddy, Telangana, India
| | - Abhijit Sau
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502 284, Sangareddy, Telangana, India
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502 284, Sangareddy, Telangana, India
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2
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Grobelny Z, Jurek-Suliga J, Golba S. The influence of hydroxylic compounds on cationic polymerization of ɛ-caprolactone mediated by iron (III) chloride in tetrahydrofuran solution. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04355-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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3
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Chen M, Chen Y, Huang T, Pi H, Hu C, Chen C. An interconversion of oxazoline‐amido‐phenolate aluminium complexes: Structural, catalytic activity and density functional theory studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ming‐Tsz Chen
- Department of Applied Chemistry Providence University Taichung Taiwan, ROC
| | - Yu‐Yang Chen
- Department of Applied Chemistry Providence University Taichung Taiwan, ROC
| | - Ting‐Hsun Huang
- Department of Applied Chemistry Providence University Taichung Taiwan, ROC
| | - Hui‐Chu Pi
- Department of Chemistry National Changhua University of Education Changhua Taiwan, ROC
| | - Ching‐Han Hu
- Department of Chemistry National Changhua University of Education Changhua Taiwan, ROC
| | - Chi‐Tien Chen
- Department of Chemistry National Chung Hsing University Taichung Taiwan, ROC
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4
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Naz F, Ciprian M, Mousavi B, Chaemchuen S, Zhu M, Yan S, Verpoort F. Solvent-free synthesis of cyclic polycaprolactone catalysed by MOF-derived ZnO/NCs catalysts. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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5
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Kaler S, McKeown P, Ward BD, Jones MD. Aluminium( iii) and zinc( ii) complexes of azobenzene-containing ligands for ring-opening polymerisation of ε-caprolactone and rac-lactide. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01303j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The ability to control the outcome of polymerisations using an external stimulus remains a formidable challenge.
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6
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Yepez XV, Baykara H, Xu L, Keener KM. Cold Plasma Treatment of Soybean Oil with Hydrogen Gas. J AM OIL CHEM SOC 2020. [DOI: 10.1002/aocs.12416] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ximena V. Yepez
- Facultad de Ingeniería Mecánica y Ciencias de la Producción Escuela Superior Politécnica del Litoral, ESPOL Km 30.5 Vía Perimetral Guayaquil P.O. Box 09‐01‐5863 Ecuador
- Department of Food Science Purdue University West Lafayette IN 47907 USA
| | - Haci Baykara
- Facultad de Ingeniería Mecánica y Ciencias de la Producción Escuela Superior Politécnica del Litoral, ESPOL Km 30.5 Vía Perimetral Guayaquil P.O. Box 09‐01‐5863 Ecuador
| | - Lei Xu
- Department of Food Science Purdue University West Lafayette IN 47907 USA
| | - Kevin M. Keener
- School of Engineering University of Guelph Guelph ON N1G 2W1 Canada
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7
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An unprecedented transformation mode in aluminium oxazoline‐amido‐phenolate complexes. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Chen MT, Chen YY, Li GL, Chen CT. Diverse Coordinative Zinc Complexes Containing Amido-Pyridinate Ligands: Structural and Catalytic Studies. Front Chem 2019; 6:615. [PMID: 30662891 PMCID: PMC6328485 DOI: 10.3389/fchem.2018.00615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/28/2018] [Indexed: 11/25/2022] Open
Abstract
In this work, zinc complexes containing amidopyridinate ligands substituted with different pendant arms have been described. Treatment of ligand precursors with ZnEt2 at a 1:1 ratio in THF yields zinc ethyl complexes (PyNC1Py)2(ZnEt)2 (1) and (PyNC2NMe2)2(ZnEt)2 (2), respectively. Complexes 1 and 2 show the same geometry as a distorted tetrahedron, but adopt different coordination behaviors supported by the ligands. Complex 1 represents a rare and a non-centrosymmetric mode, which the amido group bridges two zinc centers to form a six-membered ring. However, complex 2 shows a centrosymmetric mode, which the pyridine group links to the zinc centers to form an eight-membered ring. Recrystallization of complex 2 gives an additional complex (PyNC2NMe2)4Zn3(μ3-O) (3). We attempted to prepare zinc benzyl oxide complexes but afforded only a self-assembly cubane complex Zn7Et6(OBn)8(4). All molecular structures 1–4 are characterized depending on both single-crystal X-ray and spectroscopic data. Furthermore, their catalytic properties toward the ring opening polymerization of ε-caprolactone and L-lactide, using benzyl alcohol as the initiation reagent, are under investigation.
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Affiliation(s)
- Ming-Tsz Chen
- Department of Applied Chemistry, Providence University, Taichung, Taiwan
| | - Yu-Yang Chen
- Department of Applied Chemistry, Providence University, Taichung, Taiwan
| | - Guan-Lin Li
- Department of Applied Chemistry, Providence University, Taichung, Taiwan
| | - Chi-Tien Chen
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan
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9
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Binuclear aluminum complexes supported by linked bis(β-diketiminate) ligands for ring-opening polymerization of cyclic esters. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2053-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Ghosh S, Spannenberg A, Mejía E. Cubane-Type Polynuclear Zinc Complexes Containing Tridentate Schiff
Base Ligands: Synthesis, Characterization, and Ring-Opening Polymerization Studies of rac
-Lactide and ε
-Caprolactone. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700176] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Swarup Ghosh
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Anke Spannenberg
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Esteban Mejía
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
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11
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Nakonkhet C, Nanok T, Wattanathana W, Chuawong P, Hormnirun P. Aluminium complexes containing salicylbenzothiazole ligands and their application in the ring-opening polymerisation of rac-lactide and ε-caprolactone. Dalton Trans 2017; 46:11013-11030. [DOI: 10.1039/c7dt02435e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This paper is the first report on the use of aluminium salicylbenzothiazole complexes for the ROP of rac-LA and ε-CL.
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Affiliation(s)
- Chutikan Nakonkhet
- Laboratory of Catalysts and Advanced Polymer Materials
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
| | - Tanin Nanok
- Department of Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | - Worawat Wattanathana
- Department of Materials Engineering
- Faculty of Engineering
- Kasetsart University
- Bangkok 10900
- Thailand
| | - Pitak Chuawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- and Special Research Unit for Advanced Magnetic Resonance (AMR)
- Kasetsart University
- Bangkok 10900
| | - Pimpa Hormnirun
- Laboratory of Catalysts and Advanced Polymer Materials
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
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12
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Han Y, Feng Q, Zhang Y, Zhang Y, Yao W. Ring-opening polymerization of rac-lactide by mononuclear zinc complexes that contain chiral tetra-azane ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Hsiao HC, Datta A, Chen YF, Chang W, Lee TY, Lin CH, Huang JH. Structural aspects and ring opening polymerization of ε-caprolactone using mono- and di-aluminum compounds incorporating bidentate pyrrole-morpholine ligands. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.12.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Ji X, Yao W, Luo X, Gao W, Mu Y. Synthesis of Ti, Zr, and Hf complexes with a new tetra-azane ligand by one-pot HCl-elimination and their properties as catalysts for production of UHMWPE. NEW J CHEM 2016. [DOI: 10.1039/c5nj02151k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example for the HCl-elimination reaction being applied in the attachment of an amido-containing ligand to Zr and Hf.
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Affiliation(s)
- Xiangdong Ji
- State Key Laboratory of Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Wei Yao
- State Key Laboratory of Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xuyang Luo
- State Key Laboratory of Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Wei Gao
- State Key Laboratory of Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Ying Mu
- State Key Laboratory of Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
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15
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Ji X, Luo X, Gao W, Mu Y. Zirconium and hafnium complexes with new tetra-azane ligands: Synthesis, characterization and catalytic properties for ethylene polymerization. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Chang MC, Lu WY, Chang HY, Lai YC, Chiang MY, Chen HY, Chen HY. Comparative Study of Aluminum Complexes Bearing N,O- and N,S-Schiff Base in Ring-Opening Polymerization of ε-Caprolactone and l-Lactide. Inorg Chem 2015; 54:11292-8. [DOI: 10.1021/acs.inorgchem.5b01858] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meng-Chih Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, R.O.C
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Heng-Yi Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, R.O.C
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
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17
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Li J, Deng Y, Jie S, Li BG. Zinc complexes supported by (benzimidazolyl)pyridine alcohol ligands as highly efficient initiators for ring-opening polymerization of ε-caprolactone. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Controlled homoand copolymerization of ε-caprolactone and d,l-lactide in the presence of TiIV complexes. Russ Chem Bull 2015. [DOI: 10.1007/s11172-015-0840-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Dimethyl-Aluminium Complexes Bearing Naphthyl-Substituted Pyridine-Alkylamides as Pro-Initiators for the Efficient ROP of ε-Caprolactone. Catalysts 2015. [DOI: 10.3390/catal5031425] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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20
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Wang W, Yang Z, Ma X, Roesky HW, Ju Y, Hao P. Preparation of Aluminum Hydrides with Chelating Anilido-Imine Ligands by Addition of an Al-H Bond to a C=N Bond. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400592] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Iron(II) complexes bearing anilido-imine ligands: Synthesis and catalysis on ATRP of methyl methacrylate. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Su Q, Li P, He M, Wu Q, Ye L, Mu Y, Ma Y. A new anilido-imine compound containing o-OMe-anilinyl derived from an unexpected adduct: Synthesis, crystal structure and its coordination capability. CR CHIM 2014. [DOI: 10.1016/j.crci.2013.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Synthesis, characterization and catalytic studies of aluminium complexes containing sulfonamido–oxazolinate or –pyrazolinate ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Yao W, Xue Y, Liu T, Gao A, Wang Y. Zinc complexes supported by N,N-dimethylaniline-arylamido ligands: Synthesis, characterization and catalytic properties for ring-opening polymerization of L-lactide. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-3183-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Hao Z, Yang N, Gao W, Xin L, Luo X, Mu Y. Nickel complexes bearing N,N,N-tridentate quinolinyl anilido–imine ligands: Synthesis, characterization and catalysis on norbornene addition polymerization. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Wang Y, Liu B, Wang X, Zhao W, Liu D, Liu X, Cui D. Immortal ring-opening polymerization of ε-caprolactone by a neat magnesium catalyst system: an approach to obtain block and amphiphilic star polymers in situ. Polym Chem 2014. [DOI: 10.1039/c4py00384e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Building of various functional and topological microstructured PCLs via the immortal catalyst system of MgnBu2/ROH and click reaction.
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Affiliation(s)
- Yang Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
| | - Xue Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences
| | - Wei Zhao
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences
| | - Dongtao Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
| | - Xinli Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, China
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27
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Jianming R, Anguo X, Hongwei W, Hailin Y. Review – recent development of ring-opening polymerization of cyclic esters using aluminum complexes. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2013.840509] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Ruan Jianming
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
| | - Xiao Anguo
- Department of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, Hunan, 415000, P.R. China
| | - Wu Hongwei
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
| | - Yang Hailin
- Powder Metallurgy Research Institute, Central South University, Changsha, Hunan, 410086, P.R. China
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28
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Lawan N, Muangpil S, Kungwan N, Meepowpan P, Lee VS, Punyodom W. Tin (IV) alkoxide initiator design for poly (d-lactide) synthesis using DFT calculations. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.07.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Bakthavachalam K, Reddy ND. Synthesis of Aluminum Complexes of Triaza Framework Ligands and Their Catalytic Activity toward Polymerization of ε-Caprolactone. Organometallics 2013. [DOI: 10.1021/om3011432] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. Bakthavachalam
- Department of Chemistry, Pondicherry University, Pondicherry
605014, India
| | - N. Dastagiri Reddy
- Department of Chemistry, Pondicherry University, Pondicherry
605014, India
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30
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Yao W, Cui N, Xue YZ, Liu TT, Wang Y. Anilido-imine zinc complexes: Efficient catalysts for ring-opening polymerization of L-lactide. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-2229-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Alkarekshi W, Armitage AP, Boyron O, Davies CJ, Govere M, Gregory A, Singh K, Solan GA. Phenolate Substituent Effects on Ring-Opening Polymerization of ε-Caprolactone by Aluminum Complexes Bearing 2-(Phenyl-2-olate)-6-(1-amidoalkyl)pyridine Pincers. Organometallics 2012. [DOI: 10.1021/om301057d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Wafaa Alkarekshi
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Andrew P. Armitage
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Olivier Boyron
- Laboratoire
de Chimie, Catalyse, Polymères et Procédés, Université
de Lyon, CNRS-UCBL, 43 Boulevard du 11 Novembre 1918, 69616 Villeurbanne,
France
| | - Christopher J. Davies
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Matifadza Govere
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Andrew Gregory
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Kuldip Singh
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
| | - Gregory A. Solan
- Department of Chemistry, University of Leicester, University Road, Leicester
LE1 7RH, U.K
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32
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Ikpo N, Barbon SM, Drover MW, Dawe LN, Kerton FM. Aluminum Methyl and Chloro Complexes Bearing Monoanionic Aminephenolate Ligands: Synthesis, Characterization, and Use in Polymerizations. Organometallics 2012. [DOI: 10.1021/om300757u] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Nduka Ikpo
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
| | - Stephanie M. Barbon
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
| | - Marcus W. Drover
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
| | - Louise N. Dawe
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
- X-ray Crystallography Laboratory, Center for Chemical
Analysis, Research and Training, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
| | - Francesca M. Kerton
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL, A1B 3X7, Canada
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Wang Y, Zhao W, Liu X, Cui D, Chen EYX. Ligand-Free Magnesium Catalyst System: Immortal Polymerization of l-Lactide with High Catalyst Efficiency and Structure of Active Intermediates. Macromolecules 2012. [DOI: 10.1021/ma3007625] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Wang
- State Key Laboratory of Polymer Physics
and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
China
| | - Wei Zhao
- State Key Laboratory of Polymer Physics
and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
China
| | - Xinli Liu
- State Key Laboratory of Polymer Physics
and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics
and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872,
United States
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Zhang Y, Yao W, Li H, Mu Y. Rare-Earth-Metal Complexes Supported by New Chiral Tetra-Azane Chelating Ligands: Synthesis, Characterization, and Catalytic Properties for Intramolecular Asymmetric Hydroamination. Organometallics 2012. [DOI: 10.1021/om201286u] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanyu Zhang
- State Key Laboratory for Supramolecular Structure
and
Materials, School of Chemistry, Jilin University, 2699 Qianjin Street,
Changchun 130012, People’s Republic of China
| | - Wei Yao
- State Key Laboratory for Supramolecular Structure
and
Materials, School of Chemistry, Jilin University, 2699 Qianjin Street,
Changchun 130012, People’s Republic of China
| | - He Li
- State Key Laboratory for Supramolecular Structure
and
Materials, School of Chemistry, Jilin University, 2699 Qianjin Street,
Changchun 130012, People’s Republic of China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure
and
Materials, School of Chemistry, Jilin University, 2699 Qianjin Street,
Changchun 130012, People’s Republic of China
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Ikpo N, Hoffmann C, Dawe LN, Kerton FM. Ring-opening polymerization of ε-caprolactone by lithium piperazinyl-aminephenolate complexes: synthesis, characterization and kinetic studies. Dalton Trans 2012; 41:6651-60. [PMID: 22511217 DOI: 10.1039/c2dt30276d] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of lithium complexes were prepared from 2(N-piperazinyl-N'-methyl)-2-methylene-4-R'-6-R-phenols ([ONN](RR')) and characterized through elemental analysis, (1)H and (13)C{(1)H} NMR spectroscopy, and X-ray crystallography. Treatment of the ligands with n-butyllithium afforded {Li[ONN](RR')}(3) [R = Me, R' = (t)Bu, (1); R = R' = (t)Bu (2); R = R' = (t)Am, (3), (t)Am = C(CH(3))(2)CH(2)CH(3)], with trimetallic structures in the solid-state as shown by single-crystal X-ray diffraction. The reactivity of these complexes in the ring-opening polymerization of ε-caprolactone (ε-CL), as well as the influences of monomer concentration, monomer/Li molar ratio, polymerization temperature and time, was studied. Rates of polymerization were first order with respect to both monomer and lithium concentrations, and activation energies for the reactions were determined. MALDI-TOF MS analysis revealed that transesterification had occurred during the polymerization.
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Affiliation(s)
- Nduka Ikpo
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL A1B 3X7, Canada
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Yang N, Xin L, Gao W, Zhang J, Luo X, Liu X, Mu Y. Al and Zn complexes bearing N,N,N-tridentate quinolinyl anilido-imine ligands: synthesis, characterization and catalysis in l-lactide polymerization. Dalton Trans 2012; 41:11454-63. [DOI: 10.1039/c2dt30594a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Gao B, Su Q, Gao W, Mu Y. [(E)-10-(2,6-Dimethyl-phenyl-imino)-9-methyl-9,10-dihydro-phenanthren-9-olato]penta-methyl-dialuminum(III). Acta Crystallogr Sect E Struct Rep Online 2011; 67:m1374. [PMID: 22065706 PMCID: PMC3201228 DOI: 10.1107/s1600536811036312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 09/06/2011] [Indexed: 11/25/2022]
Abstract
The two Al atoms in the title compound, [Al2(CH3)5(C23H20NO)], are four-coordinated in a distorted tetrahedral environment. The coordination of one Al atom includes three methyl-C atoms and the O atom from the ligand, whereas the second Al atom is surrounded by the O atom and one N atom from the ligand as well as by two methyl-C atoms. In the ligand, the dihedral angle between the two phenyl rings in the 9,10-dihydrophenanthren unit is 20.64 (12)°.
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Dakshinamoorthy D, Peruch F. Titanium complexes based on aminodiol ligands for the ring-opening polymerization of ε-caprolactone, rac-β-butyrolactone, and trimethylene carbonate. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24986] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Sobczak M. Synthesis and Characterization of Polyurethanes Based on Oligo(ϵ-caprolactone) Prepared by Free-Metal Method. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2011. [DOI: 10.1080/10601325.2011.562729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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QIAN F, LIU K, MA H. Polymerization of <I>ε</I>-Caprolactone and Copolymerization with <I>rac</I>-Lactide Cata-lyzed by Mono(amidinate) Aluminum Complexes. CHINESE JOURNAL OF CATALYSIS 2011. [DOI: 10.3724/sp.j.1088.2011.00739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Issa-Madongo M, Mu Y. [N-((E)-2-{[2-(Dimethyl-amino)-eth-yl]imino-meth-yl}phen-yl)-N-(2,6-dimethyl-phen-yl)anilinido-κN,N',N'']ethyl-zinc. Acta Crystallogr Sect E Struct Rep Online 2011; 67:m364. [PMID: 21522288 PMCID: PMC3052042 DOI: 10.1107/s1600536811005514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Accepted: 02/15/2011] [Indexed: 11/18/2022]
Abstract
The title ethyl–zinc complex, [Zn(C2H5)(C19H24N3)], bears a tridentate anilinide–aldimine ligand and features one long Zn—N(amine) bond length, attributable to the crowded environment of the coordinated metal, arising from the dimethylphenyl group. The ZnII ion adopts a distorted tetrahedral geometry, the dihedral angle between the two benzene rings being 86.05 (16)°.
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Affiliation(s)
- Mathurin Issa-Madongo
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, People's Republic of China
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42
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Chen MT, Chen CT. Structural and catalytic studies of zinc complexes containing amido-oxazolinate ligands. Dalton Trans 2011; 40:12886-94. [DOI: 10.1039/c1dt10974j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Simple generation of neutral bimetallic aluminium and zinc alkyls Schiff bases bridged by a central resorcinol moiety. OPEN CHEM 2010. [DOI: 10.2478/s11532-010-0107-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractAluminium and zinc complexes bearing the N,O-chelating Schiff base ligand 4,6-bis-1-(2-(dimethylamino)ethylimino)ethyl)benzene-1,3-diol, (C6H2(OH)2(NCH2CH2NMe2)2) (1a), have been synthesized. Bimetallic aluminium and zinc alkyl complexes (2a–4a) were prepared by treatment of the hexadentate 1a with the appropriate amount of AlMe3, ZnMe2 and ZnEt2, respectively. 2a has been characterized crystallographically, it lies on a crystallographic two-fold rotation axis and each aluminium centre adopts a five coordinate geometry. Complex 2a was tested as a catalyst in the ring-opening polymerisation of ɛ-caprolactone. We describe here the synthesis of two neutral ligands (1a and (C6H2(OH)2(C6H5NH2) (C=O(CH3)) (1b)) and demonstrate their application in the synthesis of molecular aluminium and zinc derivatives.
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Liu Z, Gao W, Zhang J, Cui D, Wu Q, Mu Y. Bis(imino)aryl NCN Pincer Aluminum and Zinc Complexes: Synthesis, Characterization, and Catalysis on l-Lactide Polymerization. Organometallics 2010. [DOI: 10.1021/om100344p] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhizhou Liu
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Wei Gao
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Jingshun Zhang
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Qiaolin Wu
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
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Liu X, Ren Y, Xia H, Fan X, Mu Y. Synthesis, structures, photoluminescent and electroluminescent properties of boron complexes with anilido-imine ligands. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.01.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Ring-opening polymerization of ε-caprolactone initiated by heteropolyacid. JOURNAL OF POLYMER RESEARCH 2009. [DOI: 10.1007/s10965-009-9376-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Zhang D, Yue Q, Wang J, Shigeng G, Weng L. Synthesis, characterization of a novel anilido-iminato cobalt (II) complex and its application for addition polymerization of norbornene. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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49
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Abstract
Polycaprolactone (PCL) is an important polymer due to its mechanical properties, miscibility with a large range of other polymers and biodegradability. Two main pathways to produce polycaprolactone have been described in the literature: the polycondensation of a hydroxycarboxylic acid: 6-hydroxyhexanoic acid, and the ring-opening polymerisation (ROP) of a lactone: epsilon-caprolactone (epsilon-CL). This critical review summarises the different conditions which have been described to synthesise PCL, and gives a broad overview of the different catalytic systems that were used (enzymatic, organic and metal catalyst systems). A surprising variety of catalytic systems have been studied, touching on virtually every section of the periodic table. A detailed list of reaction conditions and catalysts/initiators is given and reaction mechanisms are presented where known. Emphasis is put on the ROP pathway due to its prevalence in the literature and the superior polymer that is obtained. In addition, ineffective systems that have been tried to catalyse the production of PCL are included in the electronic supplementary information for completeness (141 references).
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Affiliation(s)
- Marianne Labet
- Driving Innovation in Chemistry and Chemical Engineering, School of Chemistry-Faculty of Science, The University of Nottingham, University Park, NG7 2RD, United Kingdom
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50
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Gao AH, Yao W, Mu Y, Gao W, Sun MT, Su Q. Heterobimetallic aluminium and zinc complex with N-arylanilido-imine ligand: Synthesis, structure and catalytic property for ring-opening polymerization of ε-caprolactone. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.05.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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