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Chaturvedi A, Sharma V, Nafla Cm F, SivaPrasad K, Sharma D, Kumar N, Chandel R, Singh M, Rawal RK, Singh V. Transition metal-free efficient synthesis of bis(indolyl)propynes (BIPs). Org Biomol Chem 2024; 22:7039-7051. [PMID: 39145468 DOI: 10.1039/d4ob01017e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
A transition metal-free approach has been devised for the synthesis of a variety of bis(indolyl)propyne (BIP) derivatives. The strategy involves an iodine-catalyzed cascade condensation of α,β-unsaturated acetylenic aldehydes with diversely substituted indoles. The strategy was applicable to gram scale synthesis and a library of 50 molecules, which were afforded in good to excellent yields (up to 96%), was developed. The salient features of the reaction involve the synthesis of indole based privileged scaffolds in a short reaction time under transition metal-free conditions, with a wide substrate scope and excellent yields under ambient conditions.
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Affiliation(s)
- Anjali Chaturvedi
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
- Department of Biological and Chemical Science, Baba Farid College, Bathinda, India
| | - Vishal Sharma
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
| | - Fathimath Nafla Cm
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
| | - Katikam SivaPrasad
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
| | - Deepak Sharma
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
| | - Nikhil Kumar
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
| | - Rushal Chandel
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Manpreet Singh
- Department of Biological and Chemical Science, Baba Farid College, Bathinda, India
| | - Ravindra K Rawal
- Chemical Sciences and Technology Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, 785006, Assam, India
| | - Virender Singh
- Department of Chemistry, Central University of Punjab, Bathinda, 151401, Punjab, India.
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Singh M, Vaishali, Jamra R, Deepika, Kumar S, Singh V. Iodine‐Catalysed Synthesis of β‐Carboline Tethered α‐Amino Amidines Through Ugi‐Type Multicomponent Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202202392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manpreet Singh
- Department of Chemistry Baba Farid Group of Institutions Bathinda Punjab 151001 India
| | - Vaishali
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab India 144011
| | - Rahul Jamra
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab India 144011
- Department of Chemistry Central University of Punjab Bathinda Punjab India 151401
| | - Deepika
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab India 144011
| | - Sunit Kumar
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab India 144011
| | - Virender Singh
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab India 144011
- Department of Chemistry Central University of Punjab Bathinda Punjab India 151401
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de Fátima Â, Fernandes SA, Ferreira de Paiva W, de Freitas Rego Y. The Povarov Reaction: A Versatile Method to Synthesize Tetrahydroquinolines, Quinolines and Julolidines. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1794-8355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe multicomponent Povarov reaction represents a powerful approach for the construction of substances containing N-heterocyclic frameworks. By using the Povarov reaction, in addition to accessing tetrahydroquinolines, quinolines and julolidines in a single step, it is possible to form the following new bonds: two Csp
3–Csp
3 and one Csp
3–Nsp
3, two Csp
2–Csp
2 and one Csp
2–Nsp
2, and four Csp
3–Csp
3 and two Csp
3–Nsp
1, respectively. This short review discusses the main features of the Povarov reaction, including its mechanism, the reaction scope by employing different catalysts and substrates, as well as stereoselective versions.1 Introduction2 Mechanism of the Povarov Reaction3 Tetrahydroquinolines4 Quinolines5 Julolidines6 Concluding Remarks
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Affiliation(s)
- Ângelo de Fátima
- Departamento de Química, ICEx, Universidade Federal de Minas Gerais
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Singh M, Jamra R, Mehra S, Rattan S, Singh V. Potassium
Tert
‐Butoxide‐Promoted Synthesis of Fluorescent β‐Carboline Tethered 1,3,5‐Triazines and Assessment of Their Luminescent Properties. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Manpreet Singh
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab 144011 India
| | - Rahul Jamra
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab 144011 India
- Department of Chemistry Central University of Punjab Bathinda Punjab 151401 India
| | - Saloni Mehra
- Amity Institute of Applied Sciences Amity University Noida 201313 India
| | - Sunita Rattan
- Amity Institute of Applied Sciences Amity University Noida 201313 India
| | - Virender Singh
- Department of Chemistry Dr B. R. Ambedkar National Institute of Technology (NIT) Jalandhar Punjab 144011 India
- Department of Chemistry Central University of Punjab Bathinda Punjab 151401 India
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Kumar S, Malakar CC, Singh V. Cu(II)‐Catalysed Azide‐Alkyne Cycloaddition Reaction towards Synthesis of β‐Carboline C1‐Tethered 1,2,3‐Triazole Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202100002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sunit Kumar
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar 144011 Punjab India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology (NIT) Manipur Imphal 795004 India
| | - Virender Singh
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar 144011 Punjab India
- Department of Chemistry Central University of Punjab, Bathinda 151401 Punjab India
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