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Mousa M, Adly ME, Mahmoud AM, El-Nassan HB. Synthesis of Tetrahydro-β-carboline Derivatives under Electrochemical Conditions in Deep Eutectic Solvents. ACS OMEGA 2024; 9:14198-14209. [PMID: 38559915 PMCID: PMC10975637 DOI: 10.1021/acsomega.3c09790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
In this work, a novel, green, and atom-efficient method for the synthesis of tetrahydro-β-carboline derivatives using electrochemistry (EC) in deep eutectic solvents (DESs) was reported. The EC reaction conditions were optimized to achieve the highest yield. The experimental design was also optimized to perform the reaction in a two-step, one-pot reaction, thereby the time, workup procedure, and solvents needed were all reduced. The new approach achieved our strategy as EC served to decrease the time of reaction, eliminate the use of hazardous catalysts, and lower the energy required for the synthesis of the targeted compounds. On the other side, DESs were used as catalysts, in situ electrolytes, and noninflammable green solvents. The scope of the reaction was investigated using different aromatic aldehydes. Finally, the scalability of the reaction was investigated using a gram-scale reaction that afforded the product in an excellent yield.
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Affiliation(s)
- Mohamed
O. Mousa
- Pharmaceutical
Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mina E. Adly
- Pharmaceutical
Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Amr M. Mahmoud
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hala B. El-Nassan
- Pharmaceutical
Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Elavarasan S, Preety J, Abinaya R, Saravanan T, Balasunramaniam KK, Venkatramaiah N, Baskar B. Visible Light Driven Metal-Free Photoredox Catalyzed α-benzylation and α-oxygenation of N-substituted tetrahydroisoquinolines: Applications to Synthesis of Natural Products. Chem Asian J 2022; 17:e202200878. [PMID: 36073541 DOI: 10.1002/asia.202200878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/06/2022] [Indexed: 11/07/2022]
Abstract
Herein, visible light mediated organophoto redox catalysed simple and convenient method for the a-benzylation and a-oxygenation of tertiary amines is demonstrated. Synthesis of novel thiophenol based donor acceptor organophotoredox catalysts 4a - 4d were investigated along with commercial catalyst 4-CzIPN ( 4e ). A diverse biologically active a-benzylated tetrahydroisoquinolines and natural products such as (±)-Norlaudanosine, (±)-laudanosine and (±)-xylopinine have been synthesized under the optimized conditions in yields ranging from from 62-91%. Exploitation of synthesized a-benzylated compound using present phtoredox catalyzed conditions gave rise to dehydyrogenative benzylic oxidation product under oxygen atmosphere which is known to display biologically and structurally important properties. Also, various N-protected tertiary amines were found to be suitable for the a-oxygenation reactions using catalyst 4e and resulted in good yields (61-85%).
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Affiliation(s)
- S Elavarasan
- SRM Institute of Science and Technology, Chemistry, INDIA
| | - J Preety
- SRM Institute of Science and Technology, Chemistry, INDIA
| | - R Abinaya
- SRM Institute of Science and Technology, Chemistry, INDIA
| | - T Saravanan
- University of Hyderabad, School of Chemistry, INDIA
| | | | | | - Baburaj Baskar
- SRM University, Chemistry, Kattankulathur, 603203, India, 603203, Chennai, INDIA
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Abinaya R, Srinath S, Soundarya S, Sridhar R, Balasubramanian KK, Baskar B. Recent Developments on Synthesis Strategies, SAR Studies and Biological Activities of β-Carboline Derivatives – An Update. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tewari U, Sharma D, Srivastava S, Kumar BK, Faheem, Murugesan S. Anti‐Tubercular Insights of Carbolines – A Decade Critique. ChemistrySelect 2021. [DOI: 10.1002/slct.202100181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Upasana Tewari
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
| | - Divya Sharma
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
| | - Shrey Srivastava
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
| | - Faheem
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory Department of Pharmacy Birla Institute of Technology and Science Pilani, Pilani Campus Pilani 333031 Rajasthan India
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Ramu S, Baskar B. A simple and efficient metal free, additive, or base free dehydrogenation of tetrahydroisoquinolines using oxygen as a clean oxidant. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Metal free dehydrogenation of various substituted tetrahydroisoquinolines via a simple and convenient metal free, atom economical route for the synthesis of corresponding isoquinolines under oxygen atmosphere in N-methyl-2-pyrollidone (NMP) is described. Metal free dehydrogenation was carried out without the use of additive or base. A scope of the methodology was demonstrated for a number of aryl and heteroaryl substitutions present at C1 position and ester moiety at C3 position and was found to be good substrates. Substituted isoquinolines (3a–3h) and their esters (3i–3m) were synthesized in very good to excellent yields.
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Affiliation(s)
- Shanmugam Ramu
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
| | - Baburaj Baskar
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
- Laboratory of Sustainable Chemistry, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpet (Dt), Tamilnadu 603 203, India
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A convenient synthesis of β-carbolines by iron-catalyzed aerobic decarboxylative/dehydrogenative aromatization of tetrahydro-β-carbolines under air. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Banoth KK, Faheem, ChandraSekhar KVG, Adinarayana N, Murugesan S. Recent evolution on synthesis strategies and anti-leishmanial activity of β-carboline derivatives - An update. Heliyon 2020; 6:e04916. [PMID: 32995612 PMCID: PMC7501441 DOI: 10.1016/j.heliyon.2020.e04916] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/14/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
Leishmaniasis is the most widespread pathogenic disease in several countries. Currently, no effective vaccines are available, and the control of Leishmaniasis primarily relies on decade-old chemotherapy. The treatment for the Leishmaniasis is not up to the mark. Current therapy for Leishmaniasis is ancient and requires hospitalization for the administration. These medications are also highly toxic and resistant. β-carboline, a natural indole containing alkaloid, holds a vital position in the field of medicinal chemistry with a diversified pharmacological action. The current review focuses mainly on the anti-leishmanial effects of β-carboline analogs and their synthetic strategies, structural activity relationship studies (SAR). The past ten years alterations unveiled by β-carboline analogs present in phytoconstituents and various derivatives of synthesized analogs with the mechanism of action were briefly shortlisted and illustrated.
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Affiliation(s)
- Karan Kumar Banoth
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, BITS Pilani, Pilani Campus, Pilani, 333031, Rajasthan, India
| | - Faheem
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, BITS Pilani, Pilani Campus, Pilani, 333031, Rajasthan, India
| | | | - Nandikolla Adinarayana
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, R.R. Dist. Hyderabad, 500078, Telangana, India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, BITS Pilani, Pilani Campus, Pilani, 333031, Rajasthan, India
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Hu Y, Shen Y, Huang L, Van der Eycken EV, Feng H. Metal-Free Decarboxylative A3
-Coupling/Pictet-Spengler Cascade Accessing Polycyclic Scaffolds: Propiolic Acids Exceed Alkynes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yingxin Hu
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Yangpeng Shen
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Belgium
- Department of Chemistry; Peoples' Friendship University of Russia (RUDN University); 6 Miklukho-Maklaya Street 117198 Moscow Russia
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
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Santhanam S, Ramu A, Baburaj B, Kalpatu Kuppusamy B. Application of metal free aromatization to total synthesis of perlolyrin, flazin, eudistomin U and harmane. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Srinath Santhanam
- Laboratory of Sustainable Chemistry, Department of Chemistry SRM Institute of Science and Technology Kancheepuram India
| | - Abinaya Ramu
- Laboratory of Sustainable Chemistry, Department of Chemistry SRM Institute of Science and Technology Kancheepuram India
| | - Baskar Baburaj
- Laboratory of Sustainable Chemistry, Department of Chemistry SRM Institute of Science and Technology Kancheepuram India
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