1
|
Pal S, Das D, Bhunia S. p-Toluenesulfonic acid-promoted organic transformations for the generation of molecular complexity. Org Biomol Chem 2024; 22:1527-1579. [PMID: 38275082 DOI: 10.1039/d3ob01766d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Since the beginning of this century, p-toluenesulfonic acid (p-TSA) catalysed organic transformations have been an active area of research for developing efficient synthetic methodologies. Often, catalysis using p-TSA is associated with many advantages, such as operational simplicity, high selectivity, excellent yields, and ease of product isolation, which make organic synthesis convenient and versatile. Notably, p-TSA is a non-toxic, commercially available, inexpensive solid organic compound that is soluble in water, alcohols, and other polar organic solvents. p-TSA is a strong acid compared to many protic or mineral acids and its high acidity helps activate different organic functional groups. p-TSA-promoted conversions are fast, have a high atom and pot economy, and feature a multiple bond-forming index. Therefore, the utilization of p-TSA enables the synthesis of many important structural scaffolds without any hazardous metals, making it desirable in numerous applications of sustainable and green chemistry. Recently, this emerging area of research has become one of the pillars of synthetic organic chemistry to synthesise biologically relevant, complex carbocycles and heterocycles. This study provides a comprehensive summary of methods, applications, and mechanistic insights into p-TSA-catalysed organic transformations, covering the literature reports that have appeared since 2012.
Collapse
Affiliation(s)
- Sanchari Pal
- Department of Chemistry, Triveni Devi Bhalotia College, Raniganj, India.
| | - Debjit Das
- Department of Chemistry, Triveni Devi Bhalotia College, Raniganj, India.
| | - Sabyasachi Bhunia
- Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India.
| |
Collapse
|
2
|
Faraz S, Khan AT. p-TSA·H 2O catalyzed metal-free and environmentally benign synthesis of 4-aryl quinolines from arylamine, arylacetylene, and dimethyl sulfoxide. Org Biomol Chem 2023; 21:7553-7560. [PMID: 37519239 DOI: 10.1039/d3ob00993a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
An environmentally benign and metal-free synthesis of 4-aryl quinolines is reported by employing readily available arylamine, arylacetylene, and DMSO in the presence of 20 mol% p-TSA·H2O. In the present protocol, the solvent DMSO serves as a reactant cum solvent for providing the C2 carbon atom of the quinoline skeleton. Notably, the reaction proceeds effectively and efficiently without the involvement of any metal catalyst, ligand, and co-catalyst as additives and inert atmospheric reaction conditions. This method provides high atom economy and good yields, and two C-C and one C-N bonds are formed in a single step through a three-component reaction.
Collapse
Affiliation(s)
- Simra Faraz
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Abu Taleb Khan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| |
Collapse
|
3
|
Kour J, Khajuria P, Verma PK, Kapoor N, Kumar A, Sawant SD. Selective Synthesis of Bis-Heterocycles via Mono- and Di-Selenylation of Pyrazoles and Other Heteroarenes. ACS OMEGA 2022; 7:13000-13009. [PMID: 35474812 PMCID: PMC9026074 DOI: 10.1021/acsomega.2c00323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
The insertion of selenium was achieved in the form of mono-selenides and di-selenides for the preparation of novel bis-heterocyclic compounds. This method is more general and provides scaffold diversity with high yields of products. The concentration-dependent mono- and di-selenylation reaction selectivity was achieved using SeO2 as an efficient selenylating reagent.
Collapse
Affiliation(s)
- Jaspreet Kour
- Natural
Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Pratiksha Khajuria
- Natural
Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Praveen Kumar Verma
- Natural
Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- School
of Advanced Chemical Sciences, Shoolini
University, Solan, Himachal Pradesh 173229, India
| | - Neharika Kapoor
- Quality
Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Amit Kumar
- Quality
Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Sanghapal D. Sawant
- Natural
Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| |
Collapse
|
4
|
Chen CY, Lien JC, Chen CY, Hung CC, Lin HC. Design, Synthesis and Evaluation of Novel Derivatives of Curcuminoids with Cytotoxicity. Int J Mol Sci 2021; 22:ijms222212171. [PMID: 34830055 PMCID: PMC8624111 DOI: 10.3390/ijms222212171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/01/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
Curcumin and curcuminoids have been discussed frequently due to their promising functional groups (such as scaffolds of α,β-unsaturated β-diketone, α,β-unsaturated ketone and β′-hydroxy-α,β-unsaturated ketone connected with aromatic rings on both sides) that play an important role in various bioactivities, including antioxidant, anti-inflammatory, anti-proliferation and anticancer activity. A series of novel curcuminoid derivatives (a total of 55 new compounds) and three reference compounds were synthesized with good yields using three-step organic synthesis. The anti-proliferative activities of curcumin derivatives were examined for six human cancer cell lines: HeLaS3, KBvin, MCF-7, HepG2, NCI-H460 and NCI-H460/MX20. Compared to the IC50 values of all the synthesized derivatives, most α,β-unsaturated ketones displayed potent anti-proliferative effects against all six human cancer cell lines, whereas β′-hydroxy-α,β-unsaturated ketones and α,β-unsaturated β-diketones presented moderate anti-proliferative effects. Two potent curcuminoid derivatives were found among all the novel derivatives and reference compounds: (E)-5-hydroxy-7-phenyl-1-(3,4,5-trimethoxyphenyl)hept-1-en-3-one (compound 3) and (1E,4E)-1,7-bis(3,4,5-trimethoxyphenyl)hepta-1,4-dien-3-one (compound MD12a). These were selected for further analysis after the evaluation of their anti-proliferative effects against all human cancer cell lines. The results of apoptosis assays revealed that the number of dead cells was increased in early apoptosis and late apoptosis, while cell proliferation was also decreased after applying various concentrations of (E)-5-hydroxy-7-phenyl-1-(3,4,5-trimethoxyphenyl)hept-1-en-3-one (compound 3) and (1E,4E)-1,7-bis(3,4,5-trimethoxyphenyl)hepta-1,4-dien-3-one (compound MD12a) to MCF-7 and HpeG2 cancer cells. Analysis of the gene expression arrays showed that three genes (GADD45B, SESN2 and BBC3) were correlated with the p53 pathway. From the quantitative PCR analysis, it was seen that (1E,4E)-1,7-bis(3,4,5-trimethoxyphenyl)hepta-1,4-dien-3-one (compound MD12a) effectively induced the up-regulated expression of GADD45B, leading to the suppression of MCF-7 cancer cell formation and cell death. Molecular docking analysis was used to predict and sketch the interactions of the GADD45B-α,β-unsaturated ketone complex for help in drug design.
Collapse
Affiliation(s)
- Chen-Yin Chen
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Road, Beitun Dist., Taichung 406040, Taiwan; (C.-Y.C.); (J.-C.L.); (C.-Y.C.)
| | - Jin-Cherng Lien
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Road, Beitun Dist., Taichung 406040, Taiwan; (C.-Y.C.); (J.-C.L.); (C.-Y.C.)
| | - Chien-Yu Chen
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Road, Beitun Dist., Taichung 406040, Taiwan; (C.-Y.C.); (J.-C.L.); (C.-Y.C.)
| | - Chin-Chuan Hung
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Road, Beitun Dist., Taichung 406040, Taiwan; (C.-Y.C.); (J.-C.L.); (C.-Y.C.)
- Department of Pharmacy, China Medical University Hospital, 2 Yude Road, Taichung 40447, Taiwan
- Correspondence: (C.-C.H.); (H.-C.L.)
| | - Hui-Chang Lin
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Road, Beitun Dist., Taichung 406040, Taiwan; (C.-Y.C.); (J.-C.L.); (C.-Y.C.)
- Correspondence: (C.-C.H.); (H.-C.L.)
| |
Collapse
|
5
|
Paris TJ, Schwartz C, Sundall E, Willand-Charnley R. Rapid, One-Step Synthesis of α-Ketoacetals via Electrophilic Etherification. J Org Chem 2021; 86:14797-14811. [PMID: 34569793 DOI: 10.1021/acs.joc.1c01588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Herein, we report a rapid, one-step synthesis of α-ketoacetals via electrophilic etherification of α-alkoxy enolates and monoperoxyacetals. Methyl, primary, and secondary α-ketoacetals were obtained in 44-63% yields from tetrahydropyranyl substrates; using methyl tetrahydropyranyl, alkyl tetrahydropyranyl, or methyl tetrahydrofuranyl peroxyacetals, however, methyl and primary products were isolated in 66-90% yields. The present method is applied to C-O bond formation at tertiary carbons, via alkyl and methyl peroxyacetals, with yields of 25-65%. Intermolecular "alkoxyl" transfer, from peroxyacetal to α-alkoxy enolate, relies heavily on decreased steric bulk surrounding the peroxide bond and site of etherification; additionally, we found the α-OCH3 group to be critical in ensuring product formation. α-Ketoacetals demonstrated excellent reactivity, as selective, nucleophilic attack at the unprotected carbonyl furnished α-hydroxy acetals in 80-100% yields; subsequent hydrolysis of the foregoing compounds provided α-hydroxy aldehydes in yields of 58-90%.
Collapse
Affiliation(s)
- Timothy J Paris
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota 57007, United States
| | - Chris Schwartz
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota 57007, United States
| | - Eric Sundall
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota 57007, United States
| | - Rachel Willand-Charnley
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota 57007, United States
| |
Collapse
|
6
|
Marpna I, Shangpliang OR, Wanniang K, Kshiar B, Lipon TM, Laloo BM, Myrboh B. Trifluoroacetic Acid-Mediated Oxidative Self-Condensation of Acetophenones in the Presence of SeO 2: A Serendipitous Approach for the Synthesis of Fused [1,3]Dioxolo[4,5- d][1,3]dioxoles. ACS OMEGA 2021; 6:14518-14524. [PMID: 34124474 PMCID: PMC8190894 DOI: 10.1021/acsomega.1c01466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
A method for the synthesis of fused 1,3-dioxolanes was developed by self-condensation of glyoxal generated in situ by oxidation of acetophenones with SeO2 in the presence of trifluoroacetic acid. Three molecules of the glyoxal generated by oxidation of ketone with SeO2 condensed to form architecturally novel oxygen-containing heterocycles (3a-aryldihydro-[1,3]dioxolo[4,5-d][1,3] dioxole-2,5-diyl)bis(phenylmethanones). This reaction provides a unique methodology for the construction of four C-O bonds in a concerted fashion, generating highly embedded oxygen heterocycles from readily available ketones using affordable shelf reagents and simple reaction conditions.
Collapse
Affiliation(s)
| | | | | | - Baskhemlang Kshiar
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | | | - Badaker M. Laloo
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Bekington Myrboh
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| |
Collapse
|
7
|
Marpna ID, Wanniang K, Lipon TM, Shangpliang OR, Myrboh B. Selenocyanation of Aryl and Styryl Methyl Ketones in the Presence of Selenium Dioxide and Malononitrile: An Approach for the Synthesis of α-Carbonyl Selenocyanates. J Org Chem 2021; 86:1980-1986. [PMID: 33377776 DOI: 10.1021/acs.joc.0c02630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A convenient method has been developed for the synthesis of α-carbonyl selenocyanates from aryl methyl ketones/styryl methyl ketones using selenium dioxide as the selenating agent under simple reaction conditions. This reaction has notable advantages over the traditional methods in terms of accessibility and affordability of the starting materials. The method features the interaction of aryl methyl ketones/styryl methyl ketones with selenium dioxide and malononitrile to afford a series of α-carbonyl selenocyanates in moderate to good yields.
Collapse
Affiliation(s)
- Ibakyntiew D Marpna
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | | | | | | | - Bekington Myrboh
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| |
Collapse
|
8
|
Wanniang K, Shangpliang OR, Marpna ID, Lipon TM, Laloo BM, Myrboh B. Metal-Free Three-Component Coupling Reaction of Ketones with Electron-rich Arenes and Selenium Dioxide for the Synthesis of α-Arylselanyl Ketones. J Org Chem 2020; 85:15652-15659. [PMID: 33179496 DOI: 10.1021/acs.joc.0c02028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free three-component coupling reaction of aryl alkyl/alkyl ketones, SeO2, and phenols/anisoles is described. This multicomponent reaction provides a straightforward and facile pathway for the synthesis of α-((4-hydroxy/methoxyphenyl)selanyl)-aryl alkyl/alkyl ketones in the presence of p-toluenesulfonic acid for the C-Se bond formation process. The method offers an attractive and simple procedure using commonly available shelf reagents to deliver organoselenides that, to our knowledge, are being reported here for the first time.
Collapse
Affiliation(s)
- Kmendashisha Wanniang
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - O Risuklang Shangpliang
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Ibakyntiew D Marpna
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Tyrchain Mitre Lipon
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Badaker M Laloo
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Bekington Myrboh
- Centre for Advanced Studies in Chemistry, Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| |
Collapse
|
9
|
Chen C, Cao Z, Zhang X, Li Y, Yu L, Jiang X. Synergistic Catalysis of Se and Cu for the Activation of
α
‐H
of Methyl Ketones with Molecular Oxygen/Alcohol to Produce
α
‐Keto
Acetals
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000089] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chao Chen
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Zhicheng Cao
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
| | - Xu Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Yiming Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
| |
Collapse
|