1
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Limaye AS, Rananaware P, Ghosh A, Rajashekarreddy T, Raghavendrarao N, Brahmkhatri V, Hegde RV, Dateer RB. Greener Approach for Synthesis of δ-MnO 2 Nanoparticles: Access to Pharmaceutically Important Pyrimidines and their Antimicrobial Activity Studies. ACS APPLIED BIO MATERIALS 2024; 7:1790-1800. [PMID: 38424007 DOI: 10.1021/acsabm.3c01191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A sustainable approach for pharmaceutically important pyrimidine derivatives is achieved by using biogenically produced single-phase δ-MnO2 NPs under external ligand-free conditions. The phytochemicals that comprise the extract of Areca Nut Husk (ANH) have been discovered to serve as reducing agents. The role of phytochemicals is not only to aid in the reduction of Mn(VII) into Mn(IV), but they also have an important role in stabilizing the catalyst. The establishment of δ-MnO2 NPs was confirmed inveterate by FE-SEM, p-XRD, ICP-OES (Mn content = 43.17% w/w), EDX, and with an active Mn content of 43.17% w/w. A series of pyrimidine derivatives were prepared in good yields using a one-pot multicomponent synthesis approach under atmospheric conditions. In addition, hot filtration tests, control experiments, gram-scale synthesis, and mechanistic investigations were demonstrated. Additionally, antimicrobial activity studies of δ-MnO2 NPs and pyrimidine derivatives against the Gram-negative bacteria E. coli, growth curve and minimum inhibitory concentration were studied.
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Affiliation(s)
- Akshay S Limaye
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
| | - Pranita Rananaware
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
| | - Arnab Ghosh
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
| | | | | | - Varsha Brahmkhatri
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
- Department of Chemistry, Science and Humanities, Global Academy of Technology, Bangalore 560098, India
| | - Rajeev V Hegde
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Ramesh B Dateer
- Centre for Nano and Material Sciences, Jain University, Ramanagaram 562112, India
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2
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Maikhuri VK, Mathur D, Chaudhary A, Kumar R, Parmar VS, Singh BK. Transition-Metal Catalyzed Synthesis of Pyrimidines: Recent Advances, Mechanism, Scope and Future Perspectives. Top Curr Chem (Cham) 2024; 382:4. [PMID: 38296918 DOI: 10.1007/s41061-024-00451-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 01/07/2024] [Indexed: 02/02/2024]
Abstract
Pyrimidine is a pharmacologically important moiety that exhibits diverse biological activities. This review reflects the growing significance of transition metal-catalyzed reactions for the synthesis of pyrimidines (with no discussion being made on the transition metal-catalyzed functionalization of pyrimidines). The effect of different catalysts on the selectivity/yields of pyrimidines and catalyst recyclability (wherever applicable) are described, together with attempts to illustrate the role of the catalyst through mechanisms. Although several methods have been researched for synthesizing this privileged scaffold, there has been a considerable push to expand transition metal-catalyzed, sustainable, efficient and selective synthetic strategies leading to pyrimidines. The aim of the authors with this update (2017-2023) is to drive the designing of new transition metal-mediated protocols for pyrimidine synthesis.
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Affiliation(s)
- Vipin K Maikhuri
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Divya Mathur
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India.
- Department of Chemistry, Daulat Ram College, University of Delhi, Delhi, 110007, India.
| | - Ankita Chaudhary
- Department of Chemistry, Maitreyi College, University of Delhi, Delhi, 110021, India
| | - Rajesh Kumar
- Department of Chemistry, R.D.S College, B.R.A. Bihar University, Muzaffarpur, India
| | - Virinder S Parmar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
- Nanoscience Program, CUNY Graduate Center and Department of Chemistry, City College & Medgar Evers College, The City University of New York, 160 Convent Avenue, New York, NY, 10031, USA
- Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh, 201303, India
| | - Brajendra K Singh
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
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3
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Swatiputra AA, Mukherjee D, Dinda S, Roy S, Pramanik K, Ganguly S. Electron transfer catalysis mediated by 3d complexes of redox non-innocent ligands possessing an azo function: a perspective. Dalton Trans 2023; 52:15627-15646. [PMID: 37792473 DOI: 10.1039/d3dt02567e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
It was first reported almost two decades ago that ligands with azo functions are capable of accepting electron(s) upon coordination to produce azo-anion radical complexes, thereby exhibiting redox non-innocence. Over the past two decades, there have been numerous reports of such complexes along with their structures and diverse characteristics. The ability of a coordinated azo function to accept one or more electron(s), thereby acting as an electron reservoir, is currently employed to carry out electron transfer catalysis since they can undergo redox transformation at mild potentials due to the presence of energetically accessible energy levels. The cooperative involvement of redox non-innocent ligand(s) containing an azo group and the coordinated metal centre can adjust and modulate the Lewis acidity of the latter through selective ligand-centred redox events, thereby manipulating the capacity of the metal centre to bind to the substrate. We have summarized the list of first row transition metal complexes of iron, cobalt, nickel, copper and zinc with redox non-innocent ligands incorporating an azo function that have been exploited as electron transfer catalysts to effectuate sustainable synthesis of a wide variety of useful chemicals. These include ketazines, pyrimidines, benzothiazole, benzoxazoles, N-acyl hydrazones, quinazoline-4(3)H-ones, C-3 alkylated indoles, N-alkylated anilines and N-alkylated heteroamines. The reaction pathways, as demonstrated by catalytic loops, reveal that the azo function of a coordinated ligand can act as an electron sink in the initial steps to bring about alcohol oxidation and thereafter, they serve as an electron pool to produce the final products either via HAT or PCET processes.
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Affiliation(s)
- Alok Apan Swatiputra
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Debaarjun Mukherjee
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Soumitra Dinda
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Subhadip Roy
- Department of Chemistry, The ICFAI University Tripura, Tripura 799210, India
| | - Kausikisankar Pramanik
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India
| | - Sanjib Ganguly
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
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4
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Wang X, Yan H, Jia C, Fang Z, Duan J, Guo K. Synthesis of 2,4,6-Trisubstituted Pyrimidines through Copper-Catalyzed [4 + 2] Annulation of α,β-Unsaturated Ketoximes with Activated Nitriles. J Org Chem 2023; 88:12236-12243. [PMID: 37610229 DOI: 10.1021/acs.joc.3c00687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The copper-catalyzed [4 + 2] annulation of α,β-unsaturated ketoximes with activated nitriles for the rapid construction of 2,4,6-trisubstituted pyrimidines in moderate to good yields has been developed. The reaction features synthetic simplicity, good functional group tolerance, and gram-scale applicability. A plausible mechanism is proposed based on mechanistic investigations.
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Affiliation(s)
- Xuemei Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Huan Yan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chenglong Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
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5
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Pal S, Das S, Chakraborty S, Khanra S, Paul ND. Zn(II)-Catalyzed Multicomponent Sustainable Synthesis of Pyridines in Air. J Org Chem 2023; 88:3650-3665. [PMID: 36854027 DOI: 10.1021/acs.joc.2c02867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Herein, we report a Zn(II)-catalyzed solvent-free sustainable synthesis of tri- and tetra-substituted pyridines using alcohols as the primary feedstock and NH4OAc as the nitrogen source. Using a well-defined air-stable Zn(II)-catalyst, 1a, featuring a redox-active tridentate azo-aromatic pincer, 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline (La), a wide variety of unsymmetrical 2,4,6-substituted pyridines were prepared by three-component coupling of primary and secondary alcohols with NH4OAc. Catalyst 1a is equally compatible with the four-component coupling. Unsymmetrical 2,4,6-substituted pyridines were also prepared via a four-component coupling of a primary alcohol with two different secondary alcohols and NH4OAc. A series of tetra-substituted pyridines were prepared up to 67% yield by coupling primary and secondary alcohols with 1-phenylpropan-1-one or 1,2-diphenylethan-1-one and NH4OAc. The 1a-catalyzed reactions also proceeded efficiently upon replacing the secondary alcohols with the corresponding ketones, producing the desired tri- and tetra-substituted pyridines in higher yields in a shorter reaction time. A few control experiments were performed to unveil the mechanistic aspects, which indicates that the active participation of the aryl-azo ligand during catalysis enables the Zn(II)-complex to act as an efficient catalyst for the present multicomponent reactions. Aerial oxygen acts as an oxidant during the Zn(II)-catalyzed dehydrogenation of alcohols, producing H2O and H2O2 as byproducts.
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Affiliation(s)
- Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Siuli Das
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhankar Khanra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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6
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Wu Q, Li L, Xu B, Sun J, Ji D, Li Y, Shen L, Fang Z, Duan J, Chen B, Guo K. Iron-catalyzed [4 + 2] annulation of amidines with α,β-unsaturated ketoxime acetates toward 2,4,6-trisubstituted pyrimidines. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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7
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Dashteh M, Baghery S, Zolfigol MA, Khazaei A, Khajevand M. Application of New Magnetic Graphene Oxide‐Porphyrin Nanoparticles for Synthesis of Pyridines and Pyrimidines
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Anomeric‐Based Oxidation. ChemistrySelect 2022. [DOI: 10.1002/slct.202202300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Dashteh
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Saeed Baghery
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Ardeshir Khazaei
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Masuood Khajevand
- Department of Physical Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan Iran
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8
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Hao Z, Zhou X, Ma Z, Zhang C, Han Z, Lin J, Lu GL. Dehydrogenative Synthesis of Quinolines and Quinazolines via Ligand-Free Cobalt-Catalyzed Cyclization of 2-Aminoaryl Alcohols with Ketones or Nitriles. J Org Chem 2022; 87:12596-12607. [PMID: 36162131 DOI: 10.1021/acs.joc.2c00734] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a convenient and efficient protocol to synthesize quinolines and quinazolines in one pot under mild conditions. A variety of substituted quinolines were synthesized in good to excellent yields (up to 97% yield) from the dehydrogenative cyclizations of 2-aminoaryl alcohols and ketones catalyzed by readily available Co(OAc)2·4H2O. This cobalt catalytic system also showed high activity in the reactions of 2-aminobenzyl alcohols with nitriles, affording various quinazoline derivatives (up to 95% yield). The present protocol offers an environmentally benign approach for the synthesis of N-heterocycles by employing an earth-abundant cobalt salt under ligand-free conditions.
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Affiliation(s)
- Zhiqiang Hao
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Xiaoyu Zhou
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zongwen Ma
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Caicai Zhang
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zhangang Han
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Jin Lin
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Guo-Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,Maurice Wilkins Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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9
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Sohail M, Bilal M, Maqbool T, Rasool N, Ammar M, Mahmood S, Malik A, Zubair M, Abbas Ashraf G. Iron-catalyzed synthesis of N-heterocycles via intermolecular and intramolecular cyclization reactions: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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10
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Wu H, Qu B, Nguyen T, Lorenz JC, Buono F, Haddad N. Recent Advances in Non-Precious Metal Catalysis. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hao Wu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bo Qu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Thach Nguyen
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jon C. Lorenz
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Frederic Buono
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nizar Haddad
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
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11
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KO Bu-mediated transition-metal-free synthesis of pyrimidines by selective three-component coupling reactions: A mechanistic insight. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Guo K, Xu G, Wang X, Jia C, Yan H, Zhang S, Wu Q, Zhu N, Fang Z, Duan J. Synthesis of 2,4,6‐Trisubstituted Pyrimidines via Iron‐Catalyzed Homocoupling of α,β‐Unsaturated Ketoximes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kai Guo
- Nanjing Tech University CHINA
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13
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Marques CS, Carreiro EP, Teixeira APS. Multicomponent Synthesis of Heterocycles. HETEROCYCLES 2022. [DOI: 10.1002/9783527832002.ch7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Guin AK, Mondal R, Chakraborty G, Pal S, Paul ND. Ruthenium-Catalyzed Dehydrogenative Functionalization of Alcohols to Pyrroles: A Comparison between Metal-Ligand Cooperative and Non-cooperative Approaches. J Org Chem 2022; 87:7106-7123. [PMID: 35583483 DOI: 10.1021/acs.joc.2c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein, we report the synthesis and characterization of two ruthenium-based pincer-type catalysts, [1]X (X = Cl, PF6) and 2, containing two different tridentate pincer ligands, 2-pyrazolyl-(1,10-phenanthroline) (L1) and 2-arylazo-(1,10-phenanthroline) (L2a/2b, L2a = 2-(phenyldiazenyl)-1,10-phenanthroline; L2b = 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline), and their application in the synthesis of substituted pyrroles via dehydrogenative alcohol functionalization reactions. In catalyst [1]X (X = Cl, PF6), the tridentate scaffold 2-pyrazolyl-(1,10-phenanthroline) (L1) is apparently redox innocent, and all the redox events occur at the metal center, and the coordinated ligands remain as spectators. In contrast, in catalysts 2a and 2b, the coordinated azo-aromatic scaffolds are highly redox-active and known to participate actively during the dehydrogenation of alcohols. A comparison between the catalytic activities of these two catalysts was made, starting from the simple dehydrogenation of alcohols to further dehydrogenative functionalization of alcohols to various substituted pyrroles to understand the advantages/disadvantages of the metal-ligand cooperative approach. Various substituted pyrroles were prepared via dehydrogenative coupling of secondary alcohols and amino alcohols, and the N-substituted pyrroles were synthesized via dehydrogenative coupling of aromatic amines with cis-2-butene-1,4-diol and 2-butyne-1,4-diol, respectively. Several control reactions and spectroscopic experiments were performed to characterize the catalysts and establish the reaction mechanism.
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Affiliation(s)
- Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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15
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Das S, Mondal R, Guin AK, Paul ND. Ligand centered redox enabled sustainable synthesis of triazines and pyrimidines using a zinc-stabilized azo-anion radical catalyst. Org Biomol Chem 2022; 20:3105-3117. [PMID: 35088804 DOI: 10.1039/d1ob02428k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein, we report ligand-centered redox controlled Zn(II)-catalyzed multicomponent approaches for synthesizing pyrimidines and triazines. Taking advantage of the ligand-centered redox events and using a well-defined Zn(II)-catalyst (1a) bearing (E)-2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline (L1a) as the redox-active ligand, a wide variety of substituted pyrimidines and triazines were prepared via dehydrogenative alcohol functionalization reactions. Pyrimidines were prepared via two pathways: (i) dehydrogenative coupling of primary and secondary alcohols with amidines and (ii) dehydrogenative coupling of primary alcohols with alkynes and amidines. Triazines were prepared via dehydrogenative coupling of alcohols and amidines. Catalyst 1a is well tolerant to a wide range of substrates yielding the desired pyrimidines and triazines in moderate to good isolated yields. A series of control reactions were performed to predict the plausible mechanism, suggesting that the active participation of the ligand-centered redox events enables the Zn(II)-complex 1a to act as an efficient catalyst for synthesizing these N-heterocycles. Electron transfer processes occur at the azo-aromatic ligand throughout the catalytic reaction, and the Zn(II)-center serves only as a template.
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Affiliation(s)
- Siuli Das
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
| | - Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
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16
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Wang Y, Yan L, Zhang X, Xiang F, Li X, Li S, Song X. Tandem [3 + 1 + 1 + 1] Heterocyclization of α‐Acyl Ketene Dithioacetals with Ammonia and Methanol: Rapid Assembly of Polysubstituted Pyrimidines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Youkun Wang
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
| | - Linlin Yan
- Hebei Chemical and Pharmaceutical College Department of Pharmaceutical Engineering 88 Fangxing Road 050026 Shijiazhuang CHINA
| | - Xiaoxuan Zhang
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
| | - Fengrui Xiang
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
| | - Xiaojun Li
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
| | - Shengnan Li
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
| | - Xiaoning Song
- Hebei University of Technology School of Chemical Engineering and Technology 300401 Tianjin CHINA
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17
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Mondal R, Guin AK, Chakraborty S, Paul ND. Iron-Catalyzed Metal–Ligand Cooperative Approach toward Sustainable Synthesis of Azines and N-Acylhydrazones in Air. J Org Chem 2022; 87:2921-2934. [DOI: 10.1021/acs.joc.1c02787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D. Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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18
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Mondal R, Guin AK, Chakraborty G, Paul ND. Metal-ligand cooperative approaches in homogeneous catalysis using transition metal complex catalysts of redox noninnocent ligands. Org Biomol Chem 2022; 20:296-328. [PMID: 34904619 DOI: 10.1039/d1ob01153g] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Catalysis offers a straightforward route to prepare various value-added molecules starting from readily available raw materials. The catalytic reactions mostly involve multi-electron transformations. Hence, compared to the inexpensive and readily available 3d-metals, the 4d and 5d-transition metals get an extra advantage for performing multi-electron catalytic reactions as the heavier transition metals prefer two-electron redox events. However, for sustainable development, these expensive and scarce heavy metal-based catalysts need to be replaced by inexpensive, environmentally benign, and economically affordable 3d-metal catalysts. In this regard, a metal-ligand cooperative approach involving transition metal complexes of redox noninnocent ligands offers an attractive alternative. The synergistic participation of redox-active ligands during electron transfer events allows multi-electron transformations using 3d-metal catalysts and allows interesting chemical transformations using 4d and 5d-metals as well. Herein we summarize an up-to-date literature report on the metal-ligand cooperative approaches using transition metal complexes of redox noninnocent ligands as catalysts for a few selected types of catalytic reactions.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
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19
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Chan CK, Chung YH, Wang CC. Acid-controlled multicomponent selective synthesis of 2,4,6-triaryl pyridines and pyrimidines by using hexamethyldisilazane as a nitrogen source under microwave irradiation. RSC Adv 2022; 12:27281-27291. [PMID: 36276015 PMCID: PMC9513438 DOI: 10.1039/d2ra04739j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/20/2022] [Indexed: 12/02/2022] Open
Abstract
An efficient and general protocol for the synthesis of functionalized 2,4,6-triaryl pyridines and pyrimidines was developed from commercially available aromatic ketones, aldehydes and hexamethyldisilazane (HMDS) as a nitrogen source under microwave irradiation. In this multicomponent synthetic route, Lewis acids play an important role in selectively synthesizing six-membered heterocycles, including pyridines (1N) and pyrimidines (2N), by involving [2 + 1 + 2 + 1] or [2 + 1 + 1 + 1 + 1] annulated processes. Synthesis of pyrimidines and pyridines from commercially available ketones and aldehydes by using hexamethyldisilazane as a nitrogen source and controlled by acids under microwave irradiation.![]()
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Affiliation(s)
- Chieh-Kai Chan
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Yi-Hsiu Chung
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
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20
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Mondal R, Guin AK, Pal S, Mondal S, Paul ND. Sustainable synthesis of pyrazoles using alcohols as the primary feedstock by an iron catalyzed tandem C–C and C–N coupling approach. Org Chem Front 2022. [DOI: 10.1039/d2qo01196d] [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
We report two new efficient iron-catalyzed synthetic strategies for multicomponent synthesis of tri-substituted pyrazoles using biomass-derived alcohols as the primary feedstock.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Sucheta Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D. Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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21
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Hofmann N, Hultzsch KC. Borrowing Hydrogen and Acceptorless Dehydrogenative Coupling in the Multicomponent Synthesis of N‐Heterocycles: A Comparison between Base and Noble Metal Catalysis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100695] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Natalie Hofmann
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis Währinger Straße 38 1090 Vienna Austria
| | - Kai C. Hultzsch
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis Währinger Straße 38 1090 Vienna Austria
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22
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Luo L, Liu H, Zeng W, Hu W, Wang D. BTP‐Rh@g‐C
3
N
4
as an efficient recyclable catalyst for dehydrogenation and borrowing hydrogen reactions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lan Luo
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Hongqiang Liu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
- China Synchem Technology Co., Ltd. Bengbu China
| | - Wei Zeng
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Wenkang Hu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Dawei Wang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
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23
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Mondal R, Chakraborty G, Guin AK, Pal S, Paul ND. Iron catalyzed metal-ligand cooperative approaches towards sustainable synthesis of quinolines and quinazolin-4(3H)-ones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Xu Z, Chen H, Deng GJ, Huang H. Copper-catalyzed three-component formal [3 + 1 + 2] annulations for the synthesis of 2-aminopyrimidines from O-acyl ketoximes. Org Biomol Chem 2021; 19:8706-8710. [PMID: 34581386 DOI: 10.1039/d1ob01582f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A copper-based catalytic system has been developed to enable formal [3 + 1 + 2] annulations of ketoxime acetates, aldehydes, and cyanamides. This protocol offers a new strategy for the synthesis of highly substituted 2-aminopyrimidine compounds, and more importantly, pyrimidines have now been included in the N-heterocycle family constructed using O-acyl ketoximes as N-C-C synthons.
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Affiliation(s)
- Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Hongbiao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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25
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Maji M, Borthakur I, Guria S, Singha S, Kundu S. Direct access to 2-(N-alkylamino)pyrimidines via ruthenium catalyzed tandem multicomponent annulation/N-alkylation. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Mondal R, Chakraborty G, Guin AK, Sarkar S, Paul ND. Iron-Catalyzed Alkyne-Based Multicomponent Synthesis of Pyrimidines under Air. J Org Chem 2021; 86:13186-13197. [PMID: 34528802 DOI: 10.1021/acs.joc.1c00867] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An iron-catalyzed sustainable, economically affordable, and eco-friendly synthetic protocol for the construction of various trisubstituted pyrimidines is described. A wide range of trisubstituted pyrimidines were prepared using a well-defined, easy to prepare, bench-stable, and phosphine-free iron catalyst featuring a redox-noninnocent tridentate arylazo pincer under comparatively mild aerobic conditions via dehydrogenative functionalization of alcohols with alkynes and amidines.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Susmita Sarkar
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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27
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Chakraborty G, Mondal R, Guin AK, Paul ND. Nickel catalyzed sustainable synthesis of benzazoles and purines via acceptorless dehydrogenative coupling and borrowing hydrogen approach. Org Biomol Chem 2021; 19:7217-7233. [PMID: 34612344 DOI: 10.1039/d1ob01154e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein we report nickel-catalyzed sustainable synthesis of a few chosen five-membered fused nitrogen heterocycles such as benzimidazole, purine, benzothiazole, and benzoxazole via acceptorless dehydrogenative functionalization of alcohols. Using a bench stable, easy to prepare, and inexpensive Ni(ii)-catalyst, [Ni(MeTAA)] (1a), featuring a tetraaza macrocyclic ligand (tetramethyltetraaza[14]annulene (MeTAA)), a wide variety of polysubstituted benzimidazole, purine, benzothiazole, and benzoxazole derivatives were prepared via dehydrogenative coupling of alcohols with 1,2-diaminobenzene, 4,5-diaminopyrimidine, 2-aminothiphenol, and 2-aminophenol, respectively. A wide array of benzimidazoles were also prepared via a borrowing hydrogen approach involving alcohols as hydrogen donors and 2-nitroanilines as hydrogen acceptors. A few control experiments were performed to understand the reaction mechanism.
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Affiliation(s)
- Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
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28
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Nickel-catalyzed sustainable synthesis of N-heterocycles through dehydrogenative coupling of alcohols. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Mondal A, Sharma R, Pal D, Srimani D. Recent Progress in the Synthesis of Heterocycles through Base Metal‐Catalyzed Acceptorless Dehydrogenative and Borrowing Hydrogen Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100517] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Avijit Mondal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Rahul Sharma
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
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30
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Sardar B, Jamatia R, Pal D, Srimani D. Multicomponent Dehydrogenative Synthesis of Acridine‐1,8‐diones Catalyzed by Ru‐doped Hydrotalcite. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bitan Sardar
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| | - Ramen Jamatia
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
- Department of Chemistry Rajiv Gandhi University Rono Hills Doimukh 791112 Arunachal Pradesh India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
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31
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Filho EV, Pinheiro EM, Pinheiro S, Greco SJ. Aminopyrimidines: Recent synthetic procedures and anticancer activities. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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32
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Biswas N, Srimani D. Synthesis of 1,8-Dioxo-decahydroacridine Derivatives via Ru-Catalyzed Acceptorless Dehydrogenative Multicomponent Reaction. J Org Chem 2021; 86:9733-9743. [PMID: 34170141 DOI: 10.1021/acs.joc.1c01075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Ru-catalyzed acceptorless dehydrogenative multicomponent reaction has been developed. This reaction offers a cost-effective and simple operational strategy to synthesize biologically active 1,8-dioxodecahydroacridine derivatives. The protocol provides a wide range of substrate scope and various functional groups are also well tolerated under the reaction condition. To shed light on the mechanistic and kinetic study, some controlled experiments and deuterium labeling experiments were executed. A time-dependent product distribution experiment is also presented and the reaction scale-up is performed to highlight the practical utility of this strategy.
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Affiliation(s)
- Nandita Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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33
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Mondal R, Braun JD, Sidhu BK, Nevonen DE, Nemykin VN, Herbert DE. Catalytic Synthesis of Donor-Acceptor-Donor (D-A-D) and Donor-Acceptor-Acceptor (D-A-A) Pyrimidine-Ferrocenes via Acceptorless Dehydrogenative Coupling: Synthesis, Structures, and Electronic Communication. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajarshi Mondal
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Jason D. Braun
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Baldeep K. Sidhu
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Dustin E. Nevonen
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Victor N. Nemykin
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - David E. Herbert
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada
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34
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Nguyen TK, Titov GD, Khoroshilova OV, Kinzhalov MA, Rostovskii NV. Light-induced one-pot synthesis of pyrimidine derivatives from vinyl azides. Org Biomol Chem 2021; 18:4971-4982. [PMID: 32558855 DOI: 10.1039/d0ob00693a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A one-pot procedure for the synthesis of tetrasubstituted dihydropyrimidine and pyrimidine derivatives from α-azidocinnamates was developed. The synthesis is based on the finding that the outcome of LED photolysis of α-azidocinnamates depends on the light wavelength employed. Blue light (455 nm) leads to the formation of 2H-azirines only, but violet light (395 nm), UV-A light (365 nm), or sunlight result in the transformation of the in situ formed 2H-azirines to 1,3-diazabicyclo[3.1.0]hex-3-enes. Under basic catalysis (DBU), the latter were isomerized to 1,6-dihydropyrimidines which were oxidized to pyrimidines using DDQ. A successful use of Cs2CO3 as a base and air as an oxidant was also demonstrated.
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Affiliation(s)
- Tuan K Nguyen
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Gleb D Titov
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Olesya V Khoroshilova
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Mikhail A Kinzhalov
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Nikolai V Rostovskii
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
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35
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Maji M, Panja D, Borthakur I, Kundu S. Recent advances in sustainable synthesis of N-heterocycles following acceptorless dehydrogenative coupling protocol using alcohols. Org Chem Front 2021. [DOI: 10.1039/d0qo01577f] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this review, we have summarized various aspects of homogeneous and heterogeneously catalyzed recent advancements in the synthesis of heterocycles following the ADC approach.
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Affiliation(s)
- Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Dibyajyoti Panja
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ishani Borthakur
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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36
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Adak L, Ghosh T. Recent Progress in Iron-Catalyzed Reactions Towards the Synthesis of Bioactive Five- and Six-Membered Heterocycles. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200714102103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Heterocyclic compounds are the largely diverse organic molecules and find
prevalent applications in the fine chemical industry, medicinal chemistry and agricultural
science. They are also among the most commonly bearing frameworks in numerous drugs
and pharmaceutical substances. Therefore, the development of convenient, efficient and
environmentally benign methods to produce various types of heterocyclic compounds is
an attractive area of research. For the synthesis and functionalization of heterocycles,
enormous achievements have been attributed over the past decades. Recently, ironcatalyzed
reactions have accomplished a noteworthy development in the synthesis of
heterocycles. This review highlights some remarkable achievements in the iron-catalyzed
synthesis of heterocyclic compounds published in the last five years.
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Affiliation(s)
- Laksmikanta Adak
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Tubai Ghosh
- Department of Chemistry, Jadavpur University, Raja S C Mullick Road, Jadavpur, Kolkata 700032, India
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37
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Mondal R, Lozada IB, Stotska O, Herbert DE. Catalytic Synthesis of Luminescent Pyrimidines via Acceptor-less Dehydrogenative Coupling. J Org Chem 2020; 85:13747-13756. [PMID: 33095015 DOI: 10.1021/acs.joc.0c01882] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A simple catalytic synthesis of luminescent pyrimidines from benzamidines and alcohols is reported. These one-pot, acceptor-less dehydrogenative coupling reactions are catalyzed by a ruthenium hydrido chloride complex (1), supported by a chelating P^N ligand (L1) bearing a benzannulated phenanthridine donor arm. The pyrimidines thus produced are emissive in solution, with photoluminescence quantum yields reaching 72%. Details of the catalytic synthesis and characterization of the pyrimidines in both solution and the solid state are reported, along with computational modeling of the emissive excited states of representative examples.
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Affiliation(s)
- Rajarshi Mondal
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Issiah B Lozada
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Olha Stotska
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - David E Herbert
- Department of Chemistry and the Manitoba Institute for Materials, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
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38
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Saranya S, Aneeja T, Neetha M, Anilkumar G. Recent advances in the iron‐catalysed multicomponent reactions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5991] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Salim Saranya
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
| | - Thaipparambil Aneeja
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
| | - Mohan Neetha
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
- Advanced Molecular Materials Research Centre (AMMRC) Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
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39
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Gao Q, Wu M, Zhang K, Yang N, Liu M, Li J, Fang L, Bai S, Xu Y. I2-Catalyzed Aerobic α,β-Dehydrogenation and Deamination of Tertiary Alkylamines: Highly Selective Synthesis of Polysubstituted Pyrimidines via Hidden Acyclic Enamines. Org Lett 2020; 22:5645-5649. [DOI: 10.1021/acs.orglett.0c02001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qinghe Gao
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Manman Wu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Ke Zhang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Ning Yang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Mengting Liu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Juan Li
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Lizhen Fang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Suping Bai
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yongtao Xu
- School of Medical Engineering, Xinxiang Key Laboratory of Biomedical Information Research, Henan Engineering Laboratory of Combinatorial Technique for Clinical and Biomedical Big Data, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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40
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Chakraborty G, Sikari R, Mondal R, Mandal S, Paul ND. Nickel‐Catalyzed Synthesis of Pyrimidines via Dehydrogenative Functionalization of Alcohols. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900695] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Gargi Chakraborty
- Department of ChemistryIndian Institute of Engineering Science and Technology Shibpur, Botanic Garden Howrah 711103 India
| | - Rina Sikari
- Department of ChemistryIndian Institute of Engineering Science and Technology Shibpur, Botanic Garden Howrah 711103 India
| | - Rakesh Mondal
- Department of ChemistryIndian Institute of Engineering Science and Technology Shibpur, Botanic Garden Howrah 711103 India
| | - Sutanuva Mandal
- Department of ChemistryBanwarilal Bhalotia College GT Rd, Ushagram, Asansol West Bengal 713303 India
| | - Nanda D. Paul
- Department of ChemistryIndian Institute of Engineering Science and Technology Shibpur, Botanic Garden Howrah 711103 India
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Bains AK, Adhikari D. Mechanistic insight into the azo radical-promoted dehydrogenation of heteroarene towards N-heterocycles. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01008a] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A mechanistic analysis reflecting the desaturation of heteroarene towards the efficient synthesis of pyrimidine and triazine under mild conditions.
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Affiliation(s)
- Amreen K. Bains
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- SAS Nagar-140306
- India
| | - Debashis Adhikari
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- SAS Nagar-140306
- India
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Paul B, Maji M, Chakrabarti K, Kundu S. Tandem transformations and multicomponent reactions utilizing alcohols following dehydrogenation strategy. Org Biomol Chem 2020; 18:2193-2214. [DOI: 10.1039/c9ob02760b] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this review, the progress of tandem transformation of nitro, nitrile and azide functionalities is summarised to develop new C–C and C–N bonds as well as multi-component reactions using alcohols.
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Affiliation(s)
- Bhaskar Paul
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Kaushik Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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