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Martins FM, Siqueira JD, Iglesias BA, Chaves OA, Back DF. Pyridoxal water-soluble cobalt(II) helicates: Synthesis, structural analysis, and interactions with biomacromolecules. J Inorg Biochem 2022; 233:111854. [DOI: 10.1016/j.jinorgbio.2022.111854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/22/2022] [Accepted: 05/05/2022] [Indexed: 10/18/2022]
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2
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Barik M, Mishra J, Dabas S, Chinnaraja E, Subramanian S, Subramanian PS. Modified boehmite: a choice of catalyst for the selective conversion of glycerol to five-membered dioxolane. NEW J CHEM 2022. [DOI: 10.1039/d1nj04860k] [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]
Abstract
The catalytic activity of WO3@boehmite for the acetalization of glycerol with aromatic aldehydes is described in this article. The catalyst is selective towards dioxolane (up to 96%) with excellent conversion (up to 100%) in selective substrates.
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Affiliation(s)
- Manas Barik
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jyotiranjan Mishra
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Shilpa Dabas
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Eswaran Chinnaraja
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Saravanan Subramanian
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Palani S. Subramanian
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364 002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Mishra I, Bhol M, Kalimuthu P, Sathiyendiran M. Emerging Spacers-Based Ligands for Supramolecular Coordination Complexes. CHEM REC 2021; 21:594-614. [PMID: 33615668 DOI: 10.1002/tcr.202000150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Indexed: 02/01/2023]
Abstract
The design and self-assembly of supramolecular coordination complexes (SCCs) i. e., discrete cyclic metalloarchitectures such as cycles, cages, mesocates, and helicates with desired size, shape, and properties have been increasing exponentially owing to their potential applications in molecular sensors, molecular cargos, molecular recognition, and catalysis. The introduction of the organic motifs and metal complexes as a spacer provides functionality to the metalloarchitecture. This review mainly focusses on newly evolving spacer based ligands employed to yield simple to high-order metallosupramolecular assemblies using straight-forward approaches. The new spacers including corannulene, organic cyclic framework, bicyclic organic motifs, aliphatic chain, metalloligands, triarylboron, BODIPY, azaphosphatrane, phosphine, and thio/selenophosphates offer a great set of properties and in-built functionalities to the metalloarchitectures which are discussed in this review.
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Affiliation(s)
- Isha Mishra
- School of Chemistry, University of Hyderabad, Hyderabad, 500 046, India
| | - Mamina Bhol
- School of Chemistry, University of Hyderabad, Hyderabad, 500 046, India
| | - Palanisamy Kalimuthu
- Department of Chemistry, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, 624 302, Tamil Nadu, India
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4
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Song H, Postings M, Scott P, Rogers NJ. Metallohelices emulate the properties of short cationic α-helical peptides. Chem Sci 2021; 12:1620-1631. [PMID: 34163922 PMCID: PMC8179244 DOI: 10.1039/d0sc06412b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 12/24/2020] [Indexed: 12/15/2022] Open
Abstract
Naturally occurring peptides in many living systems perform antimicrobial and anticancer host defence roles, but their potential for clinical application is limited by low metabolic stability and relatively high costs of goods. Self-assembled helical metal complexes provide an attractive synthetic platform for non-peptidic architectures that can emulate some of the properties of short cationic α-helical peptides, with tuneable charge, shape, size and amphipathicity. Correspondingly there is a growing body of evidence demonstrating that these supramolecular architectures exhibit bioactivity that emulates that of the natural systems. We review that evidence in the context of synthetic advances in the area, driven by the potential for biomedical applications. We note some design considerations for new biologically-relevant metallohelices, and give our outlook on the future of these compounds as therapeutic peptidomimetics.
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5
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Villada JD, Carmona-Vargas CC, Ellena J, Ayala AP, Ramirez-Pradilla JS, Combariza MY, Galarza E, D’Vries RF, Chaur MN. Synthesis, characterization, and redox potential properties of a new double-stranded Ni-bis(hydrazone)-based helicate. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Arunachalam R, Chinnaraja E, Subramanian S, Suresh E, Subramanian PS. Catalytic Conversion of Carbon Dioxide Using Binuclear Double-Stranded Helicates: Cyclic Carbonate from Epoxides and Diol. ACS OMEGA 2020; 5:14890-14899. [PMID: 32637763 PMCID: PMC7330893 DOI: 10.1021/acsomega.9b04241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
The construction of sophisticated molecular architectures from chemical subunits requires careful selection of the spacers, precise synthetic strategies, and substantial efforts. Here, we report a series of binuclear double-stranded helicates synthesized from different combinations of pyridyl hydrazone-based multidentate ligands (H2 1, H2 2, H2 3) by increasing the methylene spacer and transition metals (Co, Ni, and Zn). The ligands H2 1 (N'1,N'3-bis((E)-pyridin-2-ylmethylene)malonohydrazide), H2 2 (N'1,N'4-bis((E)-pyridin-2-ylmethylene)succinohydrazide), and H2 3 (N'1,N'5-bis((E)-pyridin-2-ylmethylene)glutarohydrazide) and their respective complexes with Co, Ni, and Zn were obtained. Single-crystal X-ray diffraction studies of these binuclear metallohelicates confirm the double-stranded helical structure of the complexes derived from H2 2. The set of helicates Co-1, Co-2, and Co-3; Ni-1, Ni-2, and Ni-3; and Zn-1, Zn-2, and Zn-3 were investigated for its catalytic activity in the cyclic carbonate formation reaction. Intriguingly, among the synthesized catalyst, Co-1 was found to be better in terms of conversions with the calculated TOF (turnover frequency) of 128/h. The catalytic performance was significantly improved by adding 0.2 mmol of tetrabutylammonium bromide by achieving 76% conversion in 30 min, with the observed TOF of 15,934 h-1/molecule and 7967 h-1/Co center. The results obtained herein show that the double-stranded helicates are effective catalysts for converting both terminal and non-terminal epoxides into their corresponding cyclic carbonates. The striking feature of this catalytic protocol lies in demonstrating the catalytic activity for the conversion of diol to cyclic carbonate, and the detailed kinetic experiments tempted us to propose a tentative reaction mechanism for this conversion.
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Affiliation(s)
- Rajendran Arunachalam
- Inorganic
Materials and Catalysis Discipline, CSIR-Central
Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Eswaran Chinnaraja
- Inorganic
Materials and Catalysis Discipline, CSIR-Central
Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Saravanan Subramanian
- Inorganic
Materials and Catalysis Discipline, CSIR-Central
Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Eringathodi Suresh
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Analytical
and Environmental Science Division and Centralized Instrumentation
Facility, CSIR-Central Salt and Marine Chemicals
Research Institute, Gujarat 364002, India
| | - Palani S. Subramanian
- Inorganic
Materials and Catalysis Discipline, CSIR-Central
Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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7
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Giraldi E, Depallens AB, Ortiz D, Fadaei‐Tirani F, Scopelliti R, Severin K. Boronate Ester‐Capped Helicates. Chemistry 2020; 26:7578-7582. [DOI: 10.1002/chem.202001392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Indexed: 12/30/2022]
Affiliation(s)
- Erica Giraldi
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Adrien B. Depallens
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Daniel Ortiz
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Farzaneh Fadaei‐Tirani
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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Taura D, Shimomura K, Ousaka N, Yashima E. Complementary double-stranded helical oligomers bearing achiral bifunctional groups that catalyze asymmetric aldol reaction. Chirality 2020; 32:254-264. [PMID: 31919917 DOI: 10.1002/chir.23169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 12/17/2019] [Indexed: 11/06/2022]
Abstract
Two novel chiral dimer and trimer strands composed of m-terphenyl groups linked through p-diethynylbenzene units with the chiral amidine group and achiral piperazine group introduced at the terminus or center of the strands, respectively, and its complementary achiral carboxylic acid dimer and trimer were synthesized. The complementary chiral/achiral strands form an excess-handed double-helical structure as supported by intense split-type Cotton effects in the absorption regions of the conjugated backbones biased by the chiral amidinium-carboxylate salt bridges. The double-helical trimer was found to catalyze the direct aldol reaction of cyclohexanone with 4-nitrobenzaldehyde and produce the products with a moderate enantioselectivity despite the fact that the catalytically active bifunctional piperazine/carboxylic acid pair introduced in the middle is achiral, indicating the key role of the one-handed double-helical framework for supramolecular bifunctional organocatalysis.
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Affiliation(s)
- Daisuke Taura
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan.,Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Kouhei Shimomura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Naoki Ousaka
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan.,Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan.,Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
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Han A, Su H, Xu G, Khan MA, Li H. Synthesis, crystal structures, and luminescent properties of Zn(ii), Cd(ii), Eu(iii) complexes and detection of Fe(iii) ions based on a diacylhydrazone Schiff base. RSC Adv 2020; 10:23372-23378. [PMID: 35520313 PMCID: PMC9054632 DOI: 10.1039/d0ra03642k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/13/2020] [Indexed: 11/21/2022] Open
Abstract
Acylhydrazone Schiff bases are rich in N and O atoms to coordinate with metal ions to form multidentate complexes.
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Affiliation(s)
- Aiying Han
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Hao Su
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Guohong Xu
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Maroof Ahmad Khan
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Hui Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
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10
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Arunachalam R, Chinnaraja E, Valkonen A, Rissanen K, Subramanian PS. Bifunctional coordination polymers as efficient catalysts for carbon dioxide conversion. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5202] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rajendran Arunachalam
- Inorganic Materials and Catalysis DivisionCSIR‐Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Eswaran Chinnaraja
- Inorganic Materials and Catalysis DivisionCSIR‐Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Arto Valkonen
- Department of ChemistryUniversity of Jyvaskyla Jyväskylä FI‐40014 Finland
| | - Kari Rissanen
- Department of ChemistryUniversity of Jyvaskyla Jyväskylä FI‐40014 Finland
| | - Palani S. Subramanian
- Inorganic Materials and Catalysis DivisionCSIR‐Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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11
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Chinnaraja E, Arunachalam R, Suresh E, Sen SK, Natarajan R, Subramanian PS. Binuclear Double-Stranded Helicates and Their Catalytic Applications in Desymmetrization of Mesodiols. Inorg Chem 2019; 58:4465-4479. [PMID: 30929448 DOI: 10.1021/acs.inorgchem.8b03643] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The ligand L1 of 4-methyl-2,6-diformylphenol and L2 of 4- tert-butyl-2,6-diformylphenol are synthesized through Schiff base condensation with rac-, ( R)-(+), or ( S)-(-)-1,1'-binaphthyl-2,2'-diamine (BNDA). As a result, the racemic L1rac, L2rac, and enantiopure L1RR, L1SS, L2RR, and L2SS ligands are obtained incorporating Cu(II) and Zn(II) salts by a simple one-pot metal template method. The series of dinuclear complexes of [M2LX2] (here, M = Cu2+, Zn2+; X = acetate ion, chloride ion; L = L1RR, L1SS, L1rac, L2RR, L2SS, L2rac) formulas are obtained in common. Among them, the single crystal X-ray structures for [Zn2L1rac(OAc)2] and [Zn2L1SSCl2] complexes are obtained. The detailed crystal structure and the chiroptical studies performed on these complexes dictates a self-sorting behavior in their self-assembly process and illustrate a chirality transfer from the ligand to the metal center on the complexes. The enantiopure dinuclear complexes [M2LRRX2] and [M2LSSX2] generate enantiopure ΛΛ and ΔΔ isomers, respectively, but the racemic complexes produce only homochiral ΛΛ and ΔΔ assemblies. The detailed studies based on UFLC (Ultra Fast Liquid Chromatography), CD, and single crystal X-ray structure together show the absence of heterochiral ΛΔ mesocate. All these complexes are adapted as catalysts for desymmetrization of various mesodiols, and the enantiopure complexes are found to give efficient enantioselectivity in desymmetrization of mesodiols with benzoyl chloride to monobenzoylated ester providing 98% yield and 92% ee.
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Affiliation(s)
- Eswaran Chinnaraja
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Rajendran Arunachalam
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Eringathodi Suresh
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
| | - Shovan K Sen
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India.,Organic & Medicinal Chemistry Division , CSIR-Indian Institute of Chemical Biology , Kolkata 700032 , West Bengal , India
| | - Ramalingam Natarajan
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India.,Organic & Medicinal Chemistry Division , CSIR-Indian Institute of Chemical Biology , Kolkata 700032 , West Bengal , India
| | - Palani S Subramanian
- Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113 , Tamil Nadu , India
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