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Agarwal M, Verma K, Kumar Tailor Y, Khandelwal S, Rushell E, Pathak S, Kumari Y, Awasthi K, Kumar M. Efficient and Sustainable Synthesis of Spiroannulated Hybrid Molecules with Privileged Substructures using Nanostructured Heterogeneous Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202003752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monu Agarwal
- Department of Chemistry University of Rajasthan Jaipur India
| | - Kanchan Verma
- Department of Chemistry University of Rajasthan Jaipur India
| | | | | | - Esha Rushell
- Department of Chemistry University of Rajasthan Jaipur India
| | - Sakshi Pathak
- Department of Chemistry University of Rajasthan Jaipur India
| | - Yogita Kumari
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Kamlendra Awasthi
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Mahendra Kumar
- Department of Chemistry University of Rajasthan Jaipur India
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Tailor YK, Khandelwal S, Verma K, Gopal R, Kumar M. Multicomponent synthesis of dispiroheterocycles using a magnetically separable and reusable heterogeneous catalyst. RSC Adv 2020; 10:36713-36722. [PMID: 35517964 PMCID: PMC9057058 DOI: 10.1039/d0ra06676a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 09/22/2020] [Indexed: 01/10/2023] Open
Abstract
Dispiroheterocycles have been synthesized by pseudo-four component reaction of 6-aminouracil/6-amino-2-thiouracil/2-amino-1,3,4-thiadiazole, p-toluidine and isatins in an ethanol-water mixture as solvent using β-cyclodextrin functionalized Fe3O4 nanoparticles as a magnetically separable and reusable heterogeneous catalyst. The nanocatalyst was synthesized and characterized by physicochemical characterization including Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD).
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Affiliation(s)
- Yogesh Kumar Tailor
- Department of Chemistry, University of Rajasthan Jaipur India +91-0141-2702720
| | - Sarita Khandelwal
- Department of Chemistry, University of Rajasthan Jaipur India +91-0141-2702720
| | - Kanchan Verma
- Department of Chemistry, University of Rajasthan Jaipur India +91-0141-2702720
| | - Ram Gopal
- Department of Chemistry, University of Rajasthan Jaipur India +91-0141-2702720
| | - Mahendra Kumar
- Department of Chemistry, University of Rajasthan Jaipur India +91-0141-2702720
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Verma K, Tailor YK, Khandelwal S, Agarwal M, Rushell E, Pathak S, Kumari Y, Awasthi K, Kumar M. Synthesis and characterization of terbium doped TiO
2
nanoparticles and their use as recyclable and reusable heterogeneous catalyst for efficient and environmentally sustainable synthesis of spiroannulated indolo[3,2‐
c
]quinolines‐ mimetic scaffolds of isocryptolepine. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kanchan Verma
- Department of Chemistry University of Rajasthan Jaipur India
| | | | | | - Monu Agarwal
- Department of Chemistry University of Rajasthan Jaipur India
| | - Esha Rushell
- Department of Chemistry University of Rajasthan Jaipur India
| | - Sakshi Pathak
- Department of Chemistry University of Rajasthan Jaipur India
| | - Yogita Kumari
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Kamlendra Awasthi
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Mahendra Kumar
- Department of Chemistry University of Rajasthan Jaipur India
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Verma K, Tailor YK, Khandelwal S, Rushell E, Agarwal M, Kumar M. Efficient and environmentally sustainable domino protocol for the synthesis of diversified spiroheterocycles with privileged heterocyclic substructures using bio-organic catalyst in aqueous medium. Mol Divers 2019; 24:1355-1365. [PMID: 31598819 DOI: 10.1007/s11030-019-09999-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 09/30/2019] [Indexed: 11/26/2022]
Abstract
An efficient and environmentally sustainable synthetic protocol has been presented to synthesize structurally diverse spiroxindoles spiroannulated with indenopyrroloimidazoles, pyranopyrroloimidazoles, chromenopyrroloimidazoles, and imidazopyrrolopyrimidines involving three-component reaction of isatins, hydantoin, and β-diketones in the presence of green and sustainable bio-organic catalyst, β-amino acid, 2-aminoethanesulfonic acid (taurine), in aqueous media. The synthetic efficiency, operational simplicity, and reusability of catalyst make the present synthetic protocol cost effective, time efficient, and eco-friendly to synthesize molecules with structural diversity and molecular complexity and expected to contribute significantly not only to drug discovery research but also to pharmaceutical and medicinal chemistry.
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Affiliation(s)
- Kanchan Verma
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | | | | | - Esha Rushell
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Monu Agarwal
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Mahendra Kumar
- Department of Chemistry, University of Rajasthan, Jaipur, India.
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Rushell E, Tailor YK, Khandewal S, Verma K, Agarwal M, Kumar M. Deep eutectic solvent promoted synthesis of structurally diverse hybrid molecules with privileged heterocyclic substructures. NEW J CHEM 2019. [DOI: 10.1039/c9nj02694k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Structurally diverse hybrid molecules; indenopyrroloimidazoles, imidazoindoles, chromenopyrroloimidazoles and imidazopyrrlopyrimidines, have been synthesized using DES as a sustainable solvent and promoter.
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Affiliation(s)
- Esha Rushell
- Department of Chemistry
- University of Rajasthan
- Jaipur-302004
- India
| | | | - Sarita Khandewal
- Department of Chemistry
- University of Rajasthan
- Jaipur-302004
- India
| | - Kanchan Verma
- Department of Chemistry
- University of Rajasthan
- Jaipur-302004
- India
| | - Monu Agarwal
- Department of Chemistry
- University of Rajasthan
- Jaipur-302004
- India
| | - Mahendra Kumar
- Department of Chemistry
- University of Rajasthan
- Jaipur-302004
- India
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Verma K, Tailor YK, Khandelwal S, Agarwal M, Rushell E, Kumari Y, Awasthi K, Kumar M. An efficient and environmentally sustainable domino protocol for the synthesis of structurally diverse spiroannulated pyrimidophenazines using erbium doped TiO 2 nanoparticles as a recyclable and reusable heterogeneous acid catalyst. RSC Adv 2018; 8:30430-30440. [PMID: 35546857 PMCID: PMC9085390 DOI: 10.1039/c8ra04919j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/22/2018] [Indexed: 11/21/2022] Open
Abstract
An efficient and environmentally sustainable domino protocol has been presented for the synthesis of structurally diverse spiroannulated pyrimidophenazines involving a four component reaction of 2-hydroxynaphthalene-1,4-dione, benzene-1,2-diamine, cyclic ketones and amino derivatives in the presence of erbium doped TiO2 nanoparticles as a recyclable and reusable heterogeneous acid catalyst. The present synthetic protocol features mild reaction conditions with operational simplicity, excellent yield with high purity, short reaction time and high atom economy with the use of a recoverable and reusable environmentally sustainable heterogeneous catalyst.
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Affiliation(s)
- Kanchan Verma
- Department of Chemistry, University of Rajasthan Jaipur India
| | | | | | - Monu Agarwal
- Department of Chemistry, University of Rajasthan Jaipur India
| | - Esha Rushell
- Department of Chemistry, University of Rajasthan Jaipur India
| | - Yogita Kumari
- Soft Materials Lab, Department of Physics, Malaviya National Institute of Technology Jaipur India
| | - Kamlendra Awasthi
- Soft Materials Lab, Department of Physics, Malaviya National Institute of Technology Jaipur India
| | - Mahendra Kumar
- Department of Chemistry, University of Rajasthan Jaipur India
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Tailor YK, Khandelwal S, Gopal R, Rushell E, Prajapati A, Kumar M. Use of Nanomagnetic Sulfated Zirconia (Fe3
O4
@ZrO2
/SO4
2−
) as Sustainable Heterogeneous Acid Catalyst for Synthesis of Spiroheterocycles under Solvent-Free Conditions. ChemistrySelect 2017. [DOI: 10.1002/slct.201702422] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yogesh Kumar Tailor
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Sarita Khandelwal
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Ram Gopal
- Organometallic and material chemistry lab, Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Esha Rushell
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Anamika Prajapati
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Mahendra Kumar
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
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Tailor YK, Khandelwal S, Verma K, Gopal R, Kumar M. Diversity-Oriented Synthesis of Spirooxindoles Using Surface-Modified TiO2
Nanoparticles as Heterogeneous Acid Catalyst. ChemistrySelect 2017. [DOI: 10.1002/slct.201700648] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yogesh Kumar Tailor
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Sarita Khandelwal
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Kanchan Verma
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Ram Gopal
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
| | - Mahendra Kumar
- Department of Chemistry; University of Rajasthan; Jaipur- 302004, Rajasthan India
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Khandelwal S, Tailor YK, Kumar M. Deep eutectic solvents (DESs) as eco-friendly and sustainable solvent/catalyst systems in organic transformations. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.015] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kumar Tailor Y, Khandelwal S, Kumar Jain H, Kumar M. Environmentally Benign Synthetic Protocol for the Synthesis of Spiroquinazolinones Using Sustainable and Recyclable Choline Chloride Based Deep Eutectic Mixture. Curr Org Synth 2015. [DOI: 10.2174/157017941204150522190425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Tailor YK, Khandelwal S, Kumari Y, Awasthi K, Kumar M. An efficient one pot three-component nanocatalyzed synthesis of spiroheterocycles using TiO2 nanoparticles as a heterogeneous catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra04863j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient, environmentally benign isocyanide-based domino protocol is presented for synthesizing spiroheterocycles with 2-amino benzothiazole/1,3,4-thiadiazole, cyclohexyl/tert-butyl isocyanides and isatines/cyclic carbonyls, catalyzed by recyclable nanocrystalline TiO2.
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Affiliation(s)
| | | | - Yogita Kumari
- Soft Materials Lab
- Department of Physics
- Malaviya National Institute of Technology
- Jaipur
- India
| | - Kamlendra Awasthi
- Soft Materials Lab
- Department of Physics
- Malaviya National Institute of Technology
- Jaipur
- India
| | - Mahendra Kumar
- Department of Chemistry
- University of Rajasthan
- Jaipur
- India
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