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Gur’eva YA, Zalevskaya OA, Nikolaeva NS, Aleksandrova YR, Yandulova EY, Neganova ME, Slepukhin PA, Kutchin AV. Chiral zinc complexes with terpene derivatives of ethylenediamine: synthesis and biological activity. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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2
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Cho J, Nayab S, Lee JK, Hwa Jeong J, Lee H. Enantioselective Henry reaction catalysed by Chiral-copper(II) Complexes: Chirality effect derived from ligand backbone and Side-chain. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Gur'eva YA, Zalevskaya OA, Slepukhin PA. Copper(II) and zinc(II) complexes with terpene derivatives of ethylenediamine: unexpected ligand transformations. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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4
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Effect of initiator on the catalytic performance of zinc(II) complexes supported by aminomethylquinoline and aminomethylpyridine derived ligands in stereoselective ring opening polymerization of rac-lactide. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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5
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Choe S, Lee H, Nayab S. Diverse coordination geometry of cobalt (II), zinc (II), and cadmium (II) complexes comprising
N
,
N
‐bis(1H‐pyrazol‐1‐yl)methyl)amines derivatives: Synthesis, structures, and ring opening polymerization of
rac
‐lactide. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Solhye Choe
- Department of Chemistry and Green‐Nano Materials Research Center Kyungpook National University Daegu South Korea
| | - Hyosun Lee
- Department of Chemistry and Green‐Nano Materials Research Center Kyungpook National University Daegu South Korea
| | - Saira Nayab
- Department of Chemistry Shaheed Benazir Bhutto University Sheringal Dir (U) Pakistan
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Alshamrani AFA, Santoro O, Ounsworth S, Prior TJ, Stasiuk GJ, Redshaw C. Synthesis, characterisation and ROP catalytic evaluation of Cu(II) complexes bearing 2,2ʹ-diphenylglycine-derived moieties. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Choe S, Lee H, Nayab S. Synthesis, structures, and catalytic efficiency in ring opening polymerization of rac-lactide with tridentate vs. bidentate cobalt( ii), zinc( ii), and cadmium( ii) complexes containing N-substituted N, N-bis((3,5-dimethyl-1 H-pyrazol-1-yl)methyl)amine ligands. RSC Adv 2021; 11:18840-18851. [PMID: 35478641 PMCID: PMC9033469 DOI: 10.1039/d1ra02365a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/20/2021] [Indexed: 01/09/2023] Open
Abstract
A series of Co(ii), Zn(ii), and Cd(ii) complexes supported by 1-(3,5-dimethyl-1H-pyrazol-1-yl)-N-((3,5-dimethyl-1H-pyrazol-1-yl)methyl)-N-(furan-2-ylmethyl)methanamine (LA) and N,N-bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)-4-isopropylaniline (LB) were synthesized. The direct chelation of CoCl2·6H2O, ZnCl2, and CdBr2·4H2O by the ligands produced [LnMX2] (Ln = LA or LB; M = Zn or Co, with X = Cl; M = Cd, with X = Br) complexes in high yields. Structural studies revealed that [LBCoCl2] and [LBZnCl2] adopted distorted tetrahedral geometries, as LB coordinated the metal centers in a bidentate fashion, while LA coordinated the metal centers in a tridentate fashion through the nitrogen atoms of the pyrazole and amine moieties, so that [LACoCl2] and [LAZnCl2] exhibited trigonal bipyramidal geometries and [LACdBr2] a square pyramidal geometry. [LBCdBr2] has two Cd-containing structures per unit cell, whereby one Cd center adopted a distorted tetrahedral geometry and the other exhibited square bipyramidal geometry. The in situ-generated alkyl derivatives of the synthesized complexes were assessed in the ring-opening polymerization of rac-lactide. Heterotactic polylactides (PLAs) were furnished with all complexes. The [LBZnCl2]/MeLi system produced PLA with a superior heterotactic bias (Pr up to 0.94) at −25 °C. PLAs with wide-ranging polydispersity indices (1.16–2.23) and low molecular weights were produced in all cases, irrespective of the specific M(II) center and ancillary ligand utilized. Co(ii), Zn(ii), and Cd(ii) complexes supported by bis-pyrazolyl ligands were applied to the ring-opening polymerization of rac-lactide to produce heterotactic polylactides (PLAs) with superior heterotactic bias i.e. Pr up to 0.94 at −25 °C.![]()
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Affiliation(s)
- Solhye Choe
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu
- Republic of Korea
| | - Hyosun Lee
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu
- Republic of Korea
| | - Saira Nayab
- Department of Chemistry
- Shaheed Benazir Bhutto University
- Islamic Republic of Pakistan
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8
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Zalevskaya OA, Gur'eva YA, Kutchin AV. Terpene ligands in the coordination chemistry: synthesis of metal complexes, stereochemistry, catalytic properties and biological activity. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4880] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Cho J, Chun MK, Nayab S, Jeong JH. Synthesis and structures of copper(II) complexes containing N,N-bidentate N-substituted phenylethanamine derivatives as pre-catalysts for heterotactic-enriched polylactide. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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González DM, Cisterna J, Brito I, Roisnel T, Hamon JR, Manzur C. Binuclear Schiff-base zinc(II) complexes: Synthesis, crystal structures and reactivity toward ring opening polymerization of rac-lactide. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.01.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Hardouin Duparc V, Dimeck C, Schaper F. Replacing sulfonate by carboxylate: application of pyridyliminocarboxylato copper(II) complexes in rac-lactide polymerization and Chan–Evans–Lam coupling. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Copper(II) complexes carrying pyridylmethyleneaminobenzoate or –propanoate ligands, LCuX, were prepared in one-pot reactions from pyridinecarboxaldehyde, aminobenzoic acid or β-alanine, and CuX2 (X = Cl, NO3, OAc, or OTf). All complexes were characterized by single-crystal X-ray diffraction studies and formed either dimers, tetramers, or coordination polymers. Attempted preparation of the respective alkoxide complexes, LCu(OR), was unsuccessful, but use of LCuX/NaOMe mixtures in rac-lactide polymerization indicated under some conditions coordination–insertion polymerization via a copper alkoxide as the mechanism. The complexes performed poorly in rac-lactide polymerization, showing low activities (12 h to completion at 140 °C), low to moderate heterotacticity (Pr = 0.6–0.8), and poor polymer molecular weight control (intramolecular transesterification). They were competent catalysts for Chan–Evans–Lam couplings with phenylboronic acid, without any indication of side reactions such as deboration or aryl homocoupling. The complexes were active in undried methanol, without addition of base, ligand, or molecular sieves. Aniline, n-octylamine, and cyclohexylamine were coupled quantitatively under identical reaction conditions. There is only little influence of the anion on activities (less than a factor of 2) but a strong influence on induction periods. The complexes were not active in CEL coupling with alcohols, phenols, or alkylboronic acids.
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Affiliation(s)
- Valérie Hardouin Duparc
- Centre in Green Chemistry and Catalysis, Département de chimie, Université de Montréal, 2900 Boul. E.-Montpetit, Montréal, QC H3T 1J4, Canada
- Centre in Green Chemistry and Catalysis, Département de chimie, Université de Montréal, 2900 Boul. E.-Montpetit, Montréal, QC H3T 1J4, Canada
| | - Clémentine Dimeck
- Centre in Green Chemistry and Catalysis, Département de chimie, Université de Montréal, 2900 Boul. E.-Montpetit, Montréal, QC H3T 1J4, Canada
- Centre in Green Chemistry and Catalysis, Département de chimie, Université de Montréal, 2900 Boul. E.-Montpetit, Montréal, QC H3T 1J4, Canada
| | - Frank Schaper
- Centre in Green Chemistry and Catalysis, Département de chimie, Université de Montréal, 2900 Boul. E.-Montpetit, Montréal, QC H3T 1J4, Canada
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Cho J, Jeong JH, Lee MW, Kang YK. Interrogation of fractional crystallization behavior of a newly exploited chiral resolution method for racemic 1-(pyridin-2-yl)ethylamine via DFT-D3 calculations of cohesive energy. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00523d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chiral separation method for 1-(pyridin-2-yl)ethylamine is developed and the underlying energetics is investigated by DFT-D3.
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Affiliation(s)
- Juhyun Cho
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Jong Hwa Jeong
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Myung Won Lee
- Department of Chemistry
- Pukyong National University
- Busan 48513
- Republic of Korea
| | - Youn K. Kang
- Department of Chemistry
- Sangmyung University
- Seoul 03016
- Republic of Korea
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Kang MS, Cho J, Nayab S, Jeong JH. Synthesis and characterization of Zn(II) and Cu(II) complexes bearing (chiral substituent)(diethyl)-ethanediamine derivatives as precatalysts for rac-lactide polymerisation. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.10.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Cho J, Chun MK, Nayab S, Jeong JH. Synthesis, characterisation, and X-ray structures of zinc(II) complexes bearing camphor-based ethyleneamineimines as pre-catalysts for heterotactic-enriched polylactide from rac-lactide. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0282-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Daneshmand P, Pinon L, Schaper F. Dinuclear iminophenoxide copper complexes in rac-lactide polymerisation. Dalton Trans 2018; 47:10147-10161. [PMID: 30009292 DOI: 10.1039/c8dt02140f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dinuclear bis(R'-(R''-iminomethyl)phenoxide) copper complexes L2Cu2(μ-OR)2 were prepared from the reaction of copper methoxide with ROH and LH (ROH = dimethylaminoethanol or pyridylmethanol, R' = H, 4,6-tBu, 1,3-Cl, R'' = benzyl, cyclohexyl, diphenylmethyl and 2,6-dimethylphenyl). Preparation was complicated by formation of homoleptic L2Cu and only 9 of the 24 possible combinations could be prepared. All complexes were characterized by single crystal X-ray diffraction studies and crystallized as dinuclear penta-coordinated complexes. Homoleptic complexes L2Cu were inactive in lactide polymerization at room temperature. Most heteroleptic complexes showed modest to good activities with full conversion in less than 6 h at room temperature. Complexes with R' = H showed poor molecular weight control, complexes with R' = Cl were inactive in polymerization. In pyridylmethoxide-containing complexes, only one alkoxide initiated chain growth. All complexes produced atactic polymer.
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Affiliation(s)
- Pargol Daneshmand
- Centre in Green Chemistry and Catalysis, Department of chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, QC H3 T 3J7, Canada.
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Daneshmand P, Jiménez-Santiago JL, Aragon--Alberti M, Schaper F. Catalytic-Site-Mediated Chain-End Control in the Polymerization of rac-Lactide with Copper Iminopyrrolide Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00196] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Pargol Daneshmand
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec H3T 3J7, Canada
| | - José L. Jiménez-Santiago
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec H3T 3J7, Canada
| | - Maxime Aragon--Alberti
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec H3T 3J7, Canada
| | - Frank Schaper
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec H3T 3J7, Canada
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Han Y, Gao A, Zhang Y, Yao W, Guan H. Zinc complexes supported by N,O-bidentate amino-alkoxyl ligands: Synthesis, characterization and catalytic property for the ring-opening polymerization of l-lactide. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.10.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Metz A, McKeown P, Esser B, Gohlke C, Kröckert K, Laurini L, Scheckenbach M, McCormick SN, Oswald M, Hoffmann A, Jones MD, Herres-Pawlis S. ZnII
Chlorido Complexes with Aliphatic, Chiral Bisguanidine Ligands as Catalysts in the Ring-Opening Polymerisation of rac
-Lactide Using FT-IR Spectroscopy in Bulk. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701147] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Angela Metz
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Paul McKeown
- Centre for Sustainable Chemical Technologies; Department of Chemistry; University of Bath; Claverton Down BA2 7AY Bath United Kingdom
| | - Bastian Esser
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Clara Gohlke
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Konstantin Kröckert
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Larissa Laurini
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Michael Scheckenbach
- Department of Chemistry and Pharmacy; Ludwig-Maximlians University Munich; Butenandtstraße 5-13 81377 Munich Germany
| | - Strachan N. McCormick
- Centre for Sustainable Chemical Technologies; Department of Chemistry; University of Bath; Claverton Down BA2 7AY Bath United Kingdom
| | - Michaela Oswald
- Department of Chemistry and Pharmacy; Ludwig-Maximlians University Munich; Butenandtstraße 5-13 81377 Munich Germany
| | - Alexander Hoffmann
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
| | - Matthew D. Jones
- Centre for Sustainable Chemical Technologies; Department of Chemistry; University of Bath; Claverton Down BA2 7AY Bath United Kingdom
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Germany
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Reactivity of Zinc Halide Complexes Containing Camphor-Derived Guanidine Ligands with Technical rac-Lactide. INORGANICS 2017. [DOI: 10.3390/inorganics5040085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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