1
|
Soni S, Teli P, Sahiba N, Teli S, Agarwal S. Exploring the synthetic potential of a g-C 3N 4·SO 3H ionic liquid catalyst for one-pot synthesis of 1,1-dihomoarylmethane scaffolds via Knoevenagel-Michael reaction. RSC Adv 2023; 13:13337-13353. [PMID: 37143699 PMCID: PMC10152133 DOI: 10.1039/d3ra01971c] [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: 03/25/2023] [Accepted: 04/25/2023] [Indexed: 05/06/2023] Open
Abstract
A highly promising approach for the synthesis of functionalized 1,1-dihomoarylmethane scaffolds (bis-dimedones, bis-cyclohexanediones, bis-pyrazoles, and bis-coumarins) using g-C3N4·SO3H ionic liquid via Knoevenagel-Michael reaction has been developed and the synthesized derivatives were well characterized using spectral studies. The method involved the reaction of C-H activated acids with a range of aromatic aldehydes, in a 2 : 1 ratio catalyzed by a g-C3N4·SO3H ionic liquid catalyst. The use of g-C3N4·SO3H as a catalyst has several benefits, such as low cost, easy preparation, and high stability. It was synthesized from urea powder and chloro-sulfonic acid and was thoroughly characterized using FT-IR, XRD, SEM, and HRTEM. The present work unveils a promising and environmentally friendly method for synthesizing 1,1-dihomoarylmethane scaffolds with high yield, selectivity, and efficiency, using mild reaction conditions, no need for chromatographic separation, and short reaction times. The approach adheres to green chemistry principles and offers a viable alternative to the previously reported methods.
Collapse
Affiliation(s)
- Shivani Soni
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur-313001 Rajasthan India
| | - Pankaj Teli
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur-313001 Rajasthan India
| | - Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur-313001 Rajasthan India
| | - Sunita Teli
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur-313001 Rajasthan India
| | - Shikha Agarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur-313001 Rajasthan India
| |
Collapse
|
2
|
Andrade F, Roca-Melendres MM, Llaguno M, Hide D, Raurell I, Martell M, Vijayakumar S, Oliva M, Schwartz S, Durán-Lara EF, Rafael D, Abasolo I. Smart and eco-friendly N-isopropylacrylamide and cellulose hydrogels as a safe dual-drug local cancer therapy approach. Carbohydr Polym 2022; 295:119859. [DOI: 10.1016/j.carbpol.2022.119859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/02/2022] [Accepted: 07/07/2022] [Indexed: 11/26/2022]
|
3
|
Nayek N, Karmakar P, Mandal M, Karmakar I, Brahmachari G. Photochemical and electrochemical regioselective cross-dehydrogenative C(sp 2)–H sulfenylation and selenylation of substituted benzo[ a]phenazin-5-ols. NEW J CHEM 2022. [DOI: 10.1039/d2nj02224a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The essence of photo- and electrochemistry: sulfenylation and selenylation of substituted benzo[a]phenazin-5-ols through cross-dehydrogenative C(sp2)–H functionalization.
Collapse
Affiliation(s)
- Nayana Nayek
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India
| | - Pintu Karmakar
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India
| | - Mullicka Mandal
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India
| | - Indrajit Karmakar
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India
| | - Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India
| |
Collapse
|
4
|
New cerium-loaded phosphine oxide-functionalized polyurethane foam materials – Synthesis, stability, comparison of coordination behavior and catalytic applications. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
5
|
Verma M, Thakur A, Sharma R, Bharti R. Recent Advancement in the One-Pot Synthesis of the Tri-Substituted Methanes (TRSMs) and Their Biological Applications. Curr Org Synth 2021; 19:86-114. [PMID: 34515005 DOI: 10.2174/1570179418666210910105342] [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: 05/25/2021] [Revised: 07/08/2021] [Accepted: 07/19/2021] [Indexed: 11/22/2022]
Abstract
The history of tri-substituted methanes (TRSMs) in chemical industries is much older. Tri-substituted methanes were previously used as dyes in the chemical industries. Still, there is a significant surge in researchers' interest in them due to their wide range of bioactivities. Tri-substituted methane derivatives show a wide range of biological activities like anti-tumor, antimicrobial, antibiofilm, antioxidant, anti-inflammatory, anti-arthritic activities. Due to the wide range of medicinal applications shown by tri-substituted methanes, most of the methodologies reported in the literature for the synthesis of TRSMs are focused on the one-pot method. This review explored the recently reported one-pot processes for synthesizing tri-substituted methanes and their various medicinal applications. Based on the substitution attached to the -CH carbon, this review categorizes them into two major classes: (I) symmetrical and (II) unsymmetrical trisubstituted methanes. In addition, this review gives an insight into the growing opportunities for the construction of trisubstituted scaffolds via one-pot methodologies. To the best of our knowledge, no one has yet reported a review on the one-pot synthesis of TRSMs. Therefore, here we present a brief literature review of the synthesis of both symmetrical and unsymmetrical TRSMs covering various one-pot methodologies along with their medicinal applications.
Collapse
Affiliation(s)
- Monika Verma
- Department of chemistry, University Institute of sciences, Chandigarh University, Ludhiana Highway, Mohali, Punjab . India
| | - Ajay Thakur
- Department of chemistry, University Institute of sciences, Chandigarh University, Ludhiana Highway, Mohali, Punjab . India
| | - Renu Sharma
- Department of chemistry, University Institute of sciences, Chandigarh University, Ludhiana Highway, Mohali, Punjab . India
| | - Ruchi Bharti
- Department of chemistry, University Institute of sciences, Chandigarh University, Ludhiana Highway, Mohali, Punjab . India
| |
Collapse
|
6
|
Lotfifar N, Zare A, Rezanejade Bardajee G. Nano-[Fe3O4@SiO2-R-NHMe2][H2PO4] as a Highly Effectual and Magnetically Recyclable Catalyst for the Preparation of bis(6-Amino-1,3-dimethyluracil-5-yl)methanes under Solvent-Free Conditions. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1914487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nesa Lotfifar
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Abdolkarim Zare
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | | |
Collapse
|
7
|
Ziarani GM, Rad M, Mohajer F, Sehrawat H, Tomar R. Synthesis of Heterocyclic Compounds through Multicomponent Reactions Using 6-Aminouracil as Starting Reagent. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210303112858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The analogs of 6-Amino uracil are essential components due to their biological
activities. The uracil is used as an important component for the synthesis of heterocyclic compounds
like pyrrolo-, pyrido-, pyrimidine-pyrimido scaffolds. Herein, the application of this
compound is reviewed as a precursor in the synthesis of many heterocyclic cores from 2016 to
2020.
Collapse
Affiliation(s)
| | - Marzieh Rad
- Department of Chemistry, Faculty of Physics and Chemistry, University of Alzahra, Tehran,Iran
| | - Fatemeh Mohajer
- Department of Chemistry, Faculty of Physics and Chemistry, University of Alzahra, Tehran,Iran
| | - Hitesh Sehrawat
- Department of Chemistry, University of Delhi, Delhi-110007,India
| | - Ravi Tomar
- Department of Chemistry, Faculty of Science, SGT University, Gurugram, Haryana-122505,India
| |
Collapse
|
8
|
Emami-Nori A, Karamshahi Z, Ghorbani-Vaghei R. One-pot synthesis of benzopyrano[2,3-d]pyrimidine derivatives catalyzed by LDHs@Propyl-ANDSA. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A general, effective, and operationally simple approach to highly substituted benzopyrano[2,3-d]pyrimidine through the annulation of salicylaldehydes, malononitrile, and secondary amines is explained. The reaction is promoted by the Brønsted–Lowry acid, furnishing a variety of benzopyrano[2,3-d]pyrimidine derivatives in synthetically useful yields.
Collapse
Affiliation(s)
- Alahyar Emami-Nori
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Zahra Karamshahi
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Ramin Ghorbani-Vaghei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| |
Collapse
|
9
|
Synthesis, characterization and application of a novel nanorod-structured organic–inorganic hybrid material as an efficient catalyst for the preparation of aminouracil derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04104-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
10
|
Brahmachari G, Mandal M. One‐pot multicomponent synthesis of a new series of curcumin‐derived 4
H
‐pyrans under ambient conditions. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3814] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva‐Bharati (a Central University) Santiniketan West Bengal 731 235 India
| | - Mullicka Mandal
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva‐Bharati (a Central University) Santiniketan West Bengal 731 235 India
| |
Collapse
|
11
|
Zare A, Ghobadpoor A, Safdari T. Preparation, characterization and utilization of a novel dicationic molten salt as catalyst for the synthesis of bis(6-amino-1,3-dimethyluracil-5-yl)methanes. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04036-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
12
|
Brahmachari G, Karmakar I. sp
2-C-H Acetoxylation of Diversely Substituted (E
)-1-(Arylmethylene)-2-phenylhydrazines Using PhI(OAc)2
as Acetoxy Source at Ambient Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900994] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati(a Central University); 731 235 Santiniketan- West Bengal India
| | - Indrajit Karmakar
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati(a Central University); 731 235 Santiniketan- West Bengal India
| |
Collapse
|
13
|
Brahmachari G, Begam S. Ceric Ammonium Nitrate (CAN): An Efficient and Eco‐Friendly Catalyst for One‐Pot Synthesis of Diversely Functionalized Biscoumarins in Aqueous Medium under Ambient Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201900961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University), Santiniketan- 731 235 West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University), Santiniketan- 731 235 West Bengal India
| |
Collapse
|
14
|
Han L, Zhou Z. ZrOCl 2
·8H 2
O as an efficient and recyclable catalyst for the one-pot multicomponent synthesis of novel [1,3]oxazino[5,6-c]quinolin-5-one derivatives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Liangliang Han
- College of Chemistry and Materials Science; South-Central University for Nationalities; Wuhan 430074 People's Republic of China
| | - Zhongqiang Zhou
- College of Chemistry and Materials Science; South-Central University for Nationalities; Wuhan 430074 People's Republic of China
| |
Collapse
|
15
|
Borpatra PJ, Rastogi GK, Saikia MB, Deb ML, Baruah PK. Multi‐Component Reaction of 6‐Aminouracils, Aldehydes and Secondary Amines: Conversion of the Products into Pyrimido[4,5‐
d
]pyrimidines through C‐H Amination/Cyclization. ChemistrySelect 2019. [DOI: 10.1002/slct.201900210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Paran J. Borpatra
- Department of Applied Sciences, GUISTGauhati University, Guwahati- 781014 Assam India
| | - Gaurav K. Rastogi
- Department of Applied Sciences, GUISTGauhati University, Guwahati- 781014 Assam India
- Applied Organic Chemistry, CSIR-NEIST Jorhat- 785006 Assam
| | - Ms. B‐S. Saikia
- Department of Applied Sciences, GUISTGauhati University, Guwahati- 781014 Assam India
| | - Mohit L. Deb
- Department of Applied Sciences, GUISTGauhati University, Guwahati- 781014 Assam India
| | - Pranjal K. Baruah
- Department of Applied Sciences, GUISTGauhati University, Guwahati- 781014 Assam India
| |
Collapse
|
16
|
Nurjamal K, Brahmachari G. Sodium Formate-Catalyzed One-Pot Synthesis of Functionalized Spiro[indoline-3,5′-pyrido[2,3-d
]pyrimidine]/Spiro[acenaphthylene-1,5′-pyrido[2,3-d
]-pyrimidine] Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201803508] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan- 731 235, West Bengal India
| | - Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan- 731 235, West Bengal India
| |
Collapse
|
17
|
Brahmachari G, Karmakar I. Diversely Functionalized
N
‐Alkyl/Substituted alkyl,
S
‐2‐nitro‐1‐arylethyl Dithiocarbamates: Green Synthesis, Large Scale Application, and Insights in Reaction Mechanism. ChemistrySelect 2019. [DOI: 10.1002/slct.201803531] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University) Santiniketan- 731 235, West Bengal India
| | - Indrajit Karmakar
- Laboratory of Natural Products & Organic SynthesisDepartment of ChemistryVisva-Bharati (a Central University) Santiniketan- 731 235, West Bengal India
| |
Collapse
|
18
|
Sharma MG, Vala RM, Patel DM, Lagunes I, Fernandes MX, Padrón JM, Ramkumar V, Gardas RL, Patel HM. Anti‐Proliferative 1,4‐Dihydropyridine and Pyridine Derivatives Synthesized through a Catalyst‐Free, One‐Pot Multi‐Component Reaction. ChemistrySelect 2018. [DOI: 10.1002/slct.201802537] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mayank G. Sharma
- Sardar Patel UniversityDepartment of ChemistryUniversity Campus Vallabh Vidyanagr- 388 120 Gujarat India
| | - Ruturajsinh M. Vala
- Sardar Patel UniversityDepartment of ChemistryUniversity Campus Vallabh Vidyanagr- 388 120 Gujarat India
| | - Divyang M. Patel
- Sardar Patel UniversityDepartment of ChemistryUniversity Campus Vallabh Vidyanagr- 388 120 Gujarat India
| | - Irene Lagunes
- BioLabInstituto Universitario de Bio-Orgánica Antonio GonzálezCIBICANUniversidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | - Miguel X. Fernandes
- BioLabInstituto Universitario de Bio-Orgánica Antonio GonzálezCIBICANUniversidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | - José M. Padrón
- Sardar Patel UniversityDepartment of ChemistryUniversity Campus Vallabh Vidyanagr- 388 120 Gujarat India
- BioLabInstituto Universitario de Bio-Orgánica Antonio GonzálezCIBICANUniversidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
- Present address: BioLabInstituto Universitario de Bio-Orgánica Antonio González, CIBICAN, Universidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | | | - Ramesh L. Gardas
- Department of ChemistryIndian Institute of Technology Madras India
| | - Hitendra M. Patel
- Sardar Patel UniversityDepartment of ChemistryUniversity Campus Vallabh Vidyanagr- 388 120 Gujarat India
- Present address: Department of ChemistrySardar Patel University, University Campus, Vallabh Vidyanagar 388 120 Gujarat India
| |
Collapse
|
19
|
Kumari P, Bharti R, Parvin T. Synthesis of aminouracil-tethered tri-substituted methanes in water by iodine-catalyzed multicomponent reactions. Mol Divers 2018; 23:205-213. [PMID: 30109557 DOI: 10.1007/s11030-018-9862-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 08/02/2018] [Indexed: 11/28/2022]
Abstract
An efficient, mild and environmentally benign protocol has been developed for the synthesis of aminouracil-tethered tri-substituted methane derivatives. The three-component reaction of 2-hydroxy-1,4-naphthaquinone, 6-amino-1,3-dimethyluracil and aldehydes in the presence of molecular iodine as catalyst under reflux conditions resulted in aminouracil-tethered tri-substituted methane derivatives 4 in aqueous medium. Similarly, the four-component reaction of 2-hydroxy-1,4-naphthaquinone, o-phenylenediamine, aldehydes and aminouracil derivatives resulted in aminouracil-tethered tri-substituted methane derivatives 6 under the same reaction conditions. The notable features of this protocol are simple experimental procedure, cheap catalyst, readily available starting materials, moderate-to-good yields of the products having biologically active important moieties such as aminouracil, hydroxy-naphthaquinone/benzophenazine.
Collapse
Affiliation(s)
- Pooja Kumari
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India
| | - Ruchi Bharti
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India
| | - Tasneem Parvin
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India.
| |
Collapse
|
20
|
Waheed M, Ahmed N, Alsharif MA, Alahmdi MI, Mukhtar S. One-pot synthesis of 1,5-diketones from 3-acetyl-4-hydroxycoumarin and effective cyclization to unexpected 3,4-dihydropyridines. Org Biomol Chem 2018; 16:3428-3437. [PMID: 29682665 DOI: 10.1039/c8ob00718g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A facile synthesis of 1,5-diketones from 3-acetyl-4-hydroxycoumarin, aldehydes and cyclic-ketones via a one-pot aldol condensation and subsequent Michael addition reaction in the presence of a single catalyst of l-proline under mild reaction conditions has been developed. Novel 1,5-diketones were further cyclized to unexpected 3,4-dihydropyridines rather than generally formed pyridine analogues with ammonium acetate in acetic acid. One pot, high yields (72-92%) for novel 1,5-diketones and (70-90%) for the 3,4-dihydropyridine adducts, easy work-up and purification of products are the key advantages of this method.
Collapse
Affiliation(s)
- Mohd Waheed
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | | | | | | | | |
Collapse
|
21
|
Brahmachari G, Nayek N. A Facile Synthetic Route to Biologically Relevant Substituted 1,4-Naphthoquinonyl-2-oxoindolinylpyrimidines Under Metal-Free Organocatalytic Conditions. ChemistrySelect 2018. [DOI: 10.1002/slct.201800462] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (A Central University); Santiniketan-731 235, West Bengal India
| | - Nayana Nayek
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (A Central University); Santiniketan-731 235, West Bengal India
| |
Collapse
|
22
|
Brahmachari G, Begam S, Nurjamal K. Sulfamic Acid‐Catalyzed One‐Pot Synthesis of a New Series of Biologically Relevant Indole‐Uracil Molecular Hybrids in Water at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201800488] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| |
Collapse
|
23
|
Brahmachari G, Nayek N. Catalyst-Free One-Pot Three-Component Synthesis of Diversely Substituted 5-Aryl-2-oxo-/thioxo-2,3-dihydro-1 H-benzo[6,7]chromeno[2,3- d]pyrimidine-4,6,11(5 H)-triones Under Ambient Conditions. ACS OMEGA 2017; 2:5025-5035. [PMID: 31457779 PMCID: PMC6641957 DOI: 10.1021/acsomega.7b00791] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/14/2017] [Indexed: 06/10/2023]
Abstract
A simple, catalyst-free, straightforward, and highly efficient one-pot synthesis of pharmaceutically interesting diverse kind of a new series of functionalized 5-aryl-2-oxo-/thioxo-2,3-dihydro-1H-benzo[6,7]chromeno[2,3-d]pyrimidine-4,6,11(5H)-triones 4 (4-1-4-37) and substituted 5,5'-(1,4-phenylene)bis(2-oxo-/thioxo-2,3-dihydro-1H-benzo[6,7]chromeno[2,3-d]pyrimidine-4,6,11(5H)-trione) derivatives 4' (4'-1-4'-3) has been developed based on a three-component reaction between barbituric acid/N,N-dimethylbarbituric acid/2-thiobarbituric acid (1), aromatic aldehydes (2), and 2-hydroxy-1,4-naphthoquinone (3) in aqueous ethanol at room temperature (25-30 °C). The salient features of this protocol are mild reaction conditions, use of no catalyst, no need of column chromatographic purification, excellent yields, high atom economy, eco-friendliness, easy isolation of products, and reusability of reaction media.
Collapse
|
24
|
Sharma MG, Rajani DP, Patel HM. Green approach for synthesis of bioactive Hantzsch 1,4-dihydropyridine derivatives based on thiophene moiety via multicomponent reaction. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170006. [PMID: 28680664 PMCID: PMC5493906 DOI: 10.1098/rsos.170006] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/16/2017] [Indexed: 05/07/2023]
Abstract
A novel green and efficient one-pot multicomponent reaction of dihydropyridine derivatives was reported as having good to excellent yield. In the presence of the catalyst ceric ammonium nitrate (CAN), different 1,3-diones and same starting materials as 5-bromothiophene-2-carboxaldehyde and ammonium acetate were used at room temperature under solvent-free condition for the Hantzsch pyridine synthesis within a short period of time. All compounds were evaluated for their in vitro antibacterial and antifungal activity and, interestingly, we found that 5(b-f) show excellent activity compared with Ampicillin, whereas only the 5e compound shows excellent antifungal activity against Candida albicans compared with griseofulvin. The cytotoxicity of all compounds has been assessed against breast tumour cell lines (BT-549), but no activity was found. The X-ray structure of one such compound, 5a, viewed as a colourless block crystal, corresponded accurately to a primitive monoclinic cell.
Collapse
Affiliation(s)
- M. G. Sharma
- Department of Chemistry, Sardar Patel University, University Campus, Vallabh Vidyanagr, 388 120 Gujarat, India
| | | | - H. M. Patel
- Department of Chemistry, Sardar Patel University, University Campus, Vallabh Vidyanagr, 388 120 Gujarat, India
- Author for correspondence: H. M. Patel e-mail:
| |
Collapse
|
25
|
Brahmachari G, Banerjee B. Facile and Chemically Sustainable One-Pot Synthesis of a Wide Array of FusedO- andN-Heterocycles Catalyzed by Trisodium Citrate Dihydrate under Ambient Conditions. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500465] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan 731235 West Bengal India
| | - Bubun Banerjee
- Laboratory of Natural Products & Organic Synthesis; Department of Chemistry; Visva-Bharati (a Central University); Santiniketan 731235 West Bengal India
| |
Collapse
|
26
|
Abstract
The carbon–carbon (C–C) bond forms the ‘backbone’ of nearly every organic molecule, and lies at the heart of the chemical sciences! Let us explore designing of carbon–carbon frameworks at ambient conditions.
Collapse
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis
- Department of Chemistry
- Visva-Bharati (a Central University)
- Santiniketan-731235
- India
| |
Collapse
|
27
|
Mohammadi Ziarani G, Hosseini Nasab N, Lashgari N. Synthesis of heterocyclic scaffolds through 6-aminouracil-involved multicomponent reactions. RSC Adv 2016. [DOI: 10.1039/c6ra02834a] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
There is a wide range of multicomponent reactions that include 6-aminouracil in the synthesis of heterocyclic compounds. This review highlights the advances in the use of 6-aminouracil in the synthesis of various organic compounds.
Collapse
Affiliation(s)
| | | | - Negar Lashgari
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| |
Collapse
|
28
|
Brahmachari G. Design of Organic Transformations at Ambient Conditions: Our Sincere Efforts to the Cause of Green Chemistry Practice. CHEM REC 2015; 16:98-123. [DOI: 10.1002/tcr.201500229] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University); Santiniketan 731 235 West Bengal India
| |
Collapse
|