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Peddiahgari Vasu GR, Motakatla Venkata KR, Kakarla RR, Ranganath KVS, Aminabhavi TM. Recent advances in sustainable N-heterocyclic carbene-Pd(II)-pyridine (PEPPSI) catalysts: A review. ENVIRONMENTAL RESEARCH 2023; 225:115515. [PMID: 36842701 DOI: 10.1016/j.envres.2023.115515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/11/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Various catalysts in homogeneous or heterogeneous catalysis deploy unconventional reaction pathways by lowering the activation energy (AE) barrier, controlling the selectivity, and creating environmental impact, thereby bringing about economic viability. Hence, the study of these methodologies is of immense interest. To develop a new chemistry, there is much scope for the invention of brilliant candidates that could effectively catalyze diverse reaction methodologies. The palladium-catalyzed reactions motivate interesting applications on various organic transformations under mild reaction conditions. Although phosphorous designed ligands or catalysts have been used, despite their expensiveness, sensitivity and other properties, there is the necessity of developing even better cross-coupling ligands or catalysts such as N-heterocyclic carbene (NHC)-based palladium complexes. These palladium-NHCs (Pd-NHC) are novel and universal nucleophilic entities that have come into light as the most successful class of catalysts in organometallic chemistry. In the same class, a specific category of palladium-NHCs such as palladium-pyridine enhanced pre-catalyst preparation by the stabilization initiation (palladium-PEPPSI) complexes, are emerging as versatile alternatives to phosphine containing palladium complexes for various cross-coupling reactions due to their excellent catalytic activity. Further to mention that NHCs are recently extensively used as ancillary ligands in organometallic chemistry, which includes industrial-related catalytic transformations due to strong σ-donors to metal centres. Apart from this, many NHC-metal complexes are the fascinating consideration in material science as probable metallo-pharmaceuticals. The current review offers a brief exploration of palladium-PEPPSI complexes over the past few years. Further, the synthesis of a variety of these types of catalysts, their applications in Suzuki-Miyaura, Buchwald-Hartwig, Sonogashira, Negishi couplings direct C2-arylation, O-C(O) cleavage, α-arylation/alkylation of carbonyl compounds and trans-amidation reactions via cross-coupling methodologies, which are covered. Additionally, reported recent developments on reusable heterogeneous PdPEPPSI complexes and their catalytic applications are being covered. Finally, the chiral Pd complexes and their asymmetric transformations are discussed.
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Affiliation(s)
| | | | - Raghava Reddy Kakarla
- School Chemical Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | | | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi, 580031, Karnataka, India; Karnatak University, Dharwad, 58003, India; University Center for Research & Development (UCRO), Chandigarh University, Gharuan, Mohali, 140413, Punjab, India.
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Gök Y, Taslimi P, Şen B, Bal S, Aktaş A, Aygün M, Sadeghi M, Gülçin İ. Design, Synthesis, Characterization, Crystal Structure, In silico Studies, and Inhibitory Properties of the PEPPSI Type Pd(II)NHC Complexes Bearing Chloro/Fluorobenzyl Group. Bioorg Chem 2023; 135:106513. [PMID: 37030104 DOI: 10.1016/j.bioorg.2023.106513] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/26/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
This work contains synthesis, characterization, crystal structure, and biological activity of a new series of the PEPPSI type Pd(II)NHC complexes [(NHC)Pd(II)(3-Cl-py)]. NMR, FTIR, and elemental analysis techniques were used to characterize all (NHC)Pd(II)(3-Cl-py) complexes. Also, molecular and crystal structures of complex 1c were established by single-crystal X-ray diffraction. Regarding the X-ray studies, the palladium(II) atom has a slightly distorted square-planar coordination environment. Additionally, the enzyme inhibitory effect of new (NHC)Pd(II)(3-Cl-py) complexes (1a-1g) was studied. They exhibited highly potent inhibition effect on acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carbonic anhydrases (hCAs) (Ki values are in the range of 0.08 ± 0.01 to 0.65 ± 0.06 µM, 10.43 ± 0.98 to 22.48 ± 2.01 µM, 6.58 ± 0.30 to 10.88 ± 1.01 µM and 6.34 ± 0.37 to 9.02 ± 0.72 µM for AChE, BChE, hCA I, and hCA II, respectively). Based on the molecular docking, among the seven synthesized complexes, 1c, 1b, 1e, and 1a significantly inhibited AChE, BChE, hCA I, and hCA II enzymes, respectively. The findings highpoint that (NHC)Pd(II)(3-Cl-py) complexes can be considered as possible inhibitors via metabolic enzyme inhibition.
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Karakaş H, Güzel M, Ak M, Kılınçarslan R, Özdemir N. N,S-heterocyclic carbene containing benzothiazol-2-ylidene-Ru(II) and Pd(II) new complexes functionalized with butyl linked carbazole moiety: Synthesis, characterization and their catalytic efficiency and electropolymerizations. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Behçet A, Taslimi P, Gök Y, Aktaş A, Taskin‐Tok T, Gülçin İ. New PEPPSI‐Pd‐NHC complexes bearing 4‐hydroxyphenylethyl group: Synthesis, characterization, molecular docking, and bioactivity properties. Arch Pharm (Weinheim) 2022; 355:e2200276. [DOI: 10.1002/ardp.202200276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Ayten Behçet
- Department of Chemistry, Faculty of Science and Arts Inonu University Malatya Türkiye
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science Bartin University Bartin Türkiye
| | - Yetkin Gök
- Department of Chemistry, Faculty of Science and Arts Inonu University Malatya Türkiye
| | - Aydın Aktaş
- Vocational School of Health Service Inonu University Malatya Türkiye
| | - Tugba Taskin‐Tok
- Department of Chemistry, Faculty of Arts and Sciences Gaziantep University Gaziantep Türkiye
- Department of Bioinformatics and Computational Biology, Institute of Health Sciences Gaziantep University Gaziantep Türkiye
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science Atatürk University Erzurum Türkiye
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Çağlılar T, Behçet A, Celepci DB, Aktaş A, Gök Y, Aygün M. Benzimidazole-functionalized PEPPSI type Pd(II)NHC complexes bearing nitrophenylethyl and hidroxyphenylethyl group: Synthesis, characterization, crystal structure and it's catalytic activity on direct arylation reaction. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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A new PEPPSI type N-heterocyclic carbene palladium(II) complexes and its efficiency as a catalyst for Mizoroki-Heck cross-coupling reactions in water : Synthesis, Characterization and their antimicrobial and Cytotoxic activities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130204] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bal S, Demirci Ö, Şen B, Taslimi P, Aktaş A, Gök Y, Aygün M, Gülçin İ. PEPPSI type Pd(II)NHC complexes bearing chloro-/fluorobenzyl group: Synthesis, characterization, crystal structures, α-glycosidase and acetylcholinesterase inhibitory properties. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115060] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Daşgın S, Gök Y, Barut Celepci D, Taslimi P, İzmirli M, Aktaş A, Gülçin İ. Synthesis, characterization, crystal structure and bioactivity properties of the benzimidazole-functionalized PEPPSI type of Pd(II)NHC complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129442] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Khan S, Buğday N, Yaşar S, Ullah N, Özdemir İ. Pd-N-heterocyclic carbene complex catalysed C–H bond activation of 2-isobutylthiazole at the C5 position with aryl bromides. NEW J CHEM 2021. [DOI: 10.1039/d1nj00514f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An effective and efficient catalytic system has been reported for the synthesis of C5-arylated 2-isobutylthiazoles.
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Affiliation(s)
- Siraj Khan
- Quaid-i-Azam University
- Faculty of Biological Sciences
- Department of Pharmacy
- Islamabad
- Pakistan
| | - Nesrin Buğday
- İnönü University
- Faculty of Science and art
- Department of Chemistry
- Malatya
- Turkey
| | - Sedat Yaşar
- İnönü University
- Faculty of Science and art
- Department of Chemistry
- Malatya
- Turkey
| | - Naseem Ullah
- Quaid-i-Azam University
- Faculty of Biological Sciences
- Department of Pharmacy
- Islamabad
- Pakistan
| | - İsmail Özdemir
- İnönü University
- Faculty of Science and art
- Department of Chemistry
- Malatya
- Turkey
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Türker F, Noma SAA, Aktaş A, Al-Khafaji K, Taşkın Tok T, Ateş B, Gök Y. The (NHC)PdBr2(2-aminopyridine) complexes: synthesis, characterization, molecular docking study, and inhibitor effects on the human serum carbonic anhydrase and serum bovine xanthine oxidase. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02687-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Song AX, Zeng XX, Ma BB, Xu C, Liu FS. Direct (Hetero)arylation of Heteroarenes Catalyzed by Unsymmetrical Pd-PEPPSI-NHC Complexes under Mild Conditions. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00494] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- A-Xiang Song
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Xiao-Xiao Zeng
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Bei-Bei Ma
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Chang Xu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
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