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Chapple P, Roisnel T, Cordier M, Carpentier JF, Sarazin Y. Heteroleptic Carbazolato-Barium Hydroborates and a Related Separated Ion Pair. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Bhattacharjee J, Sarkar A, Panda TK. Alkali and Alkaline Earth Metal Complexes as Versatile Catalysts for Ring-Opening Polymerization of Cyclic Esters. CHEM REC 2021; 21:1898-1911. [PMID: 34197009 DOI: 10.1002/tcr.202100148] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/10/2021] [Accepted: 06/17/2021] [Indexed: 12/30/2022]
Abstract
Biodegradable polyesters such as poly(ϵ-caprolactone) (PCL) and poly(lactic acid) (PLA) have been considered for use in several areas, such as drug delivery devices, sutures, tissue engineering, and GBR membranes, due to its bio-renewability, biodegradability, and biocompatibility. Several synthetic techniques for the preparation of polyesters have been reported in the literature, amongst which the ring-opening polymerization (ROP) of cyclic esters is the most efficient. A convenient approach to access iso-selective PLAs is polymerization of racemic lactide (rac-LA), which shows excellent stereoregularity without the need for costly chiral auxiliaries or ligands. In this personal account, we review a series of methods that have been practiced to the synthesis of biodegradable polyesters from various cyclic monomers using alkali and alkaline earth metal complexes as efficient catalysts.
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Affiliation(s)
- Jayeeta Bhattacharjee
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi, 502 285, Sangareddy, Telangana, India
| | - Alok Sarkar
- Momentive Performance Materials Pvt. Ltd., Survey No. 09, Hosur Road, Electronic City (west), Bangalore, 560100, India
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi, 502 285, Sangareddy, Telangana, India
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3
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Bandelli D, Weber C, Schubert US. Strontium Isopropoxide: A Highly Active Catalyst for the Ring-Opening Polymerization of Lactide and Various Lactones. Macromol Rapid Commun 2019; 40:e1900306. [PMID: 31506988 DOI: 10.1002/marc.201900306] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/14/2019] [Indexed: 01/08/2023]
Abstract
Commercially available strontium isopropoxide represents a suitable catalyst/initiator for the ring-opening polymerization (ROP) of lactide (LA), ε-caprolactone, δ-valerolactone, δ-caprolactone, and δ-decalactone. Well-defined polyesters are accessible via the solution polymerization of lactide in toluene with a [LA]:[Sr] ratio of 100:1 at room temperature with or without the addition of dodecanol as coinitiator. Kinetic studies and detailed analysis by means of matrix-assisted laser desorption ionization mass spectrometry reveal pseudo-first-order kinetics of the ROP as well as excellent endgroup fidelity of the polylactide (PLA) with isopropyl and dodecyl α-endgroups. Both isopropanolate moieties as well as the coinitiator each initiate PLA chains, enabling the synthesis of PLA with tailored molar mass. The polymerization of ε-caprolactone and δ-valerolactone confirms the high catalyst activity, which causes quantitative monomer conversion after 1 min polymerization time but broad molar mass distributions. In contrast, the catalyst is well suited for the ROP of the less reactive δ-caprolactone and δ-decalactone. Although kinetic studies reveal initially bimodal molar mass distributions, polyesters with dispersity values Ð < 1.2 and unimodal molar mass distributions can be obtained at moderate to high monomer conversions.
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Affiliation(s)
- Damiano Bandelli
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Christine Weber
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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4
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Banerjee I, Harinath A, Panda TK. Alkali Metal Catalysed Double Hydrophosphorylation of Nitriles and Alkynes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Indrani Banerjee
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi – 502 285, Sangareddy, Telangana India
| | - Adimulam Harinath
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi – 502 285, Sangareddy, Telangana India
| | - Tarun K. Panda
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi – 502 285, Sangareddy, Telangana India
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5
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Gao J, Zhu D, Zhang W, Solan GA, Ma Y, Sun WH. Recent progress in the application of group 1, 2 & 13 metal complexes as catalysts for the ring opening polymerization of cyclic esters. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00855a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review focuses on recent developments concerned with the use of well-defined main group complexes as (pre-)catalysts for the ROP of cyclic esters to give aliphatic polyesters; factors influencing catalytic activity, selectivity and polymer properties are all discussed.
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Affiliation(s)
- Jiahao Gao
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Dongzhi Zhu
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Wenjuan Zhang
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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G. Reis S, del Águila-Sánchez MA, P. Guedes G, Navarro Y, A. Allão Cassaro R, B. Ferreiraa G, Calancea S, López-Ortiz F, G. F. Vaz M. Novel P,P-diphenylphosphinic amide-TEMPO radicals family: Synthesis, crystal structures, spectroscopic characterization, magnetic properties and DFT calculations. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Harinath A, Bhattacharjee J, Sarkar A, Nayek HP, Panda TK. Ring Opening Polymerization and Copolymerization of Cyclic Esters Catalyzed by Group 2 Metal Complexes Supported by Functionalized P–N Ligands. Inorg Chem 2018; 57:2503-2516. [DOI: 10.1021/acs.inorgchem.7b02847] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Adimulam Harinath
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
| | - Jayeeta Bhattacharjee
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
| | - Alok Sarkar
- Momentive Performance
Materials Pvt. Ltd., Bangalore 560 100, India
| | - Hari Pada Nayek
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826 004, Jharkhand, India
| | - Tarun K. Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
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8
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Kumar CA, Panda TK. Recent development of aminophosphine chalcogenides and boranes as ligands in s-block metal chemistry. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1322967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chowan Ashok Kumar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India
| | - Tarun K. Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India
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9
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Bhattacharjee J, Harinath A, Nayek HP, Sarkar A, Panda TK. Highly Active and Iso-Selective Catalysts for the Ring-Opening Polymerization of Cyclic Esters using Group 2 Metal Initiators. Chemistry 2017; 23:9319-9331. [DOI: 10.1002/chem.201700672] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jayeeta Bhattacharjee
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi 502 285, Sangareddy, Telangana India
| | - Adimulam Harinath
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi 502 285, Sangareddy, Telangana India
| | - Hari Pada Nayek
- Department of Applied Chemistry; Indian Institute of Technology (ISM), Dhanbad; 826004 Jharkhand India
| | - Alok Sarkar
- Momentive Performance Materials Pvt. Ltd. Survey No. 09; Hosur Road Electronic City (West) Bangalore 560100 India
| | - Tarun K. Panda
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi 502 285, Sangareddy, Telangana India
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10
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Lee SL, Hu FL, Shang XJ, Shi YX, Tan AL, Mizera J, Clegg JK, Zhang WH, Young DJ, Lang JP. Efficient ring-opening polymerization (ROP) of ε-caprolactone catalysed by isomeric pyridyl β-diketonate iron(iii) complexes. NEW J CHEM 2017. [DOI: 10.1039/c7nj03571c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of FeL3 complexes of dipyridyl β-diketones were structurally characterized and their catalytic properties investigated.
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Affiliation(s)
- Sze-Ling Lee
- Faculty of Science
- Universiti Brunei Darussalam
- Brunei
| | - Fei-Long Hu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Xiu-Juan Shang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Yi-Xiang Shi
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Ai Ling Tan
- Faculty of Science
- Universiti Brunei Darussalam
- Brunei
| | - Jens Mizera
- Department of Chemistry and Food Chemistry
- Technical University Dresden
- 01062 Dresden
- Germany
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences
- The University of Queensland, Brisbane
- St. Lucia
- Australia
| | - Wen-Hua Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - David J. Young
- Faculty of Science, Health, Education and Engineering
- University of the Sunshine Coast
- Maroochydore DC
- Australia
| | - Jian-Ping Lang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
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Anga S, Bhattacharjee J, Banerjee I, Nayek HP, Panda TK. Calcium Complexes Having Different Amidinate Ligands - Synthesis and Structural Diversity. ChemistrySelect 2016. [DOI: 10.1002/slct.201600299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Srinivas Anga
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi - 502 285 Sangareddy, Telangana India
| | - Jayeeta Bhattacharjee
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi - 502 285 Sangareddy, Telangana India
| | - Indrani Banerjee
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi - 502 285 Sangareddy, Telangana India
| | - Hari Pada Nayek
- Department of Applied Chemistry; Indian School of Mines, Dhanbad; 826004 Jharkhand India
| | - Tarun K. Panda
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi - 502 285 Sangareddy, Telangana India
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12
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Anga S, Carpentier JF, Panda TK, Roisnel T, Sarazin Y. Calcium complexes with imino-phosphinanilido chalcogenide ligands for heterofunctionalisation catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra13117d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Syntheses, characterisation and utilisation of the calcium complexes supported by imino-phosphinanilido chalcogenide ligands {Ph2P(E)–N–C6H4–CHN(Dipp)} (E = S, Se) as molecular precatalysts for the heterofunctionalisation of styrene are reported.
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Affiliation(s)
- Srinivas Anga
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Jean-François Carpentier
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS
- Université de Rennes 1
- Organometallics: Materials and Catalysis Centre
- F-35042 Rennes Cedex
| | - Tarun K. Panda
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS
- Université de Rennes 1
- Organometallics: Materials and Catalysis Centre
- F-35042 Rennes Cedex
| | - Yann Sarazin
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS
- Université de Rennes 1
- Organometallics: Materials and Catalysis Centre
- F-35042 Rennes Cedex
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Kottalanka RK, Harinath A, Rej S, Panda TK. Group 1 and group 2 metal complexes supported by a bidentate bulky iminopyrrolyl ligand: synthesis, structural diversity, and ε-caprolactone polymerization study. Dalton Trans 2015; 44:19865-79. [PMID: 26511076 DOI: 10.1039/c5dt03222a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report here a series of alkali and alkaline earth metal complexes, each with a bulky iminopyrrolyl ligand [2-(Ph3CN=CH)C4H3NH] (1-H) moiety in their coordination sphere, synthesized using either alkane elimination or silylamine elimination methods or the salt metathesis route. The lithium salt of molecular composition [Li(2-(Ph3CN=CH)C4H3N)(THF)2] (2) was prepared using the alkane elimination method, and the silylamine elimination method was used to synthesize the dimeric sodium and tetra-nuclear potassium salts of composition [(2-(Ph3CN=CH)C4H3N)Na(THF)]2 (3) and [(2-(Ph3CN=CH)C4H3N)K(THF)0.5]4 (4) respectively. The magnesium complex of composition [(THF)2Mg(CH2Ph){2-(Ph3CN=CH)C4H3N}] (5) was synthesized through the alkane elimination method, in which [Mg(CH2Ph)2(OEt2)2] was treated with the bulky iminopyrrole ligand 1-H in 1 : 1 molar ratio, whereas the bis(iminopyrrolyl)magnesium complex [(THF)2Mg{2-(Ph3CN=CH)C4H3N}2] (6) was isolated using the salt metathesis route. The heavier alkaline earth metal complexes of the general formula {(THF)nM(2-(Ph3CN=CH)C4H3N)2} [M = Ca (7), Sr (8), and n = 2; M = Ba (9), n = 3] were prepared in pure form using two synthetic methods: in the first method, the bulky iminopyrrole ligand 1-H was directly treated with the alkaline earth metal precursor [M{N(SiMe3)2}2(THF)n] (where M = Ca, Sr and Ba) in 2 : 1 molar ratio in THF solvent at ambient temperature. The complexes 7-9 were also obtained using the salt metathesis reaction, which involves the treatment of the potassium salt (4) with the corresponding metal diiodides MI2 (M = Ca, Sr and Ba) in 2 : 1 molar ratio in THF solvent. The molecular structures of all the metal complexes (1-H, 2-9) in the solid state were established through single-crystal X-ray diffraction analysis. The complexes 5-9 were tested as catalysts for the ring-opening polymerization of ε-caprolactone. High activity was observed in the heavier alkaline earth metal complexes 7-9, with a very narrow polydispersity index in comparison to that of magnesium complexes 5 and 6.
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Affiliation(s)
- Ravi K Kottalanka
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - A Harinath
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - Supriya Rej
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
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Bhattacharjee J, Das S, Reddy TDN, Nayek HP, Mallik BS, Panda TK. Alkali Metal and Alkaline Earth Metal Complexes with the Bis(borane-diphenylphosphanyl)amido Ligand - Synthesis, Structures, and Catalysis for Ring-Opening Polymerization of ϵ-Caprolactone. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500593] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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