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Mal S, Jana M. Facile and straightforward synthesis of the racemic version of 2-amino-4H-chromene-3-carbonitriles using K2HPO4 as an eco-friendly base. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rodphon W, Thongsornkleeb C, Tummatorn J, Ruchirawat S. Synthesis of 4-Acylchromene via Highly Chemoselective Iodine-Catalyzed Cyclization of Alkynylarylether Dimethylacetals. Chem Asian J 2020; 15:3475-3486. [PMID: 32902153 DOI: 10.1002/asia.202000994] [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: 08/21/2020] [Revised: 09/02/2020] [Indexed: 11/11/2022]
Abstract
4-Acylchromene is an important core structure found in bioactive natural products and bioactive synthetic compounds. Moreover, this core structure is frequently used as a key precursor for the synthesis of more complex molecules. In this work, we discovered that a combination of acetone and catalytic I2 could lead to selective activation of acetal in alkynylarylether dimethylacetal substrates while alkyne moiety remained intact. This activation of acetal led to the generation of oxonium ion intermediate which triggered intramolecular cyclization and elimination of methanol to provide the desired 4-acylchromene as the sole product in up to 95% yield. Moreover, this method could be applied in a broad range of substrates under a mild and metal-free catalytic conditions for the synthesis of 4-acylchromene derivatives.
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Affiliation(s)
- Warabhorn Rodphon
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
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Mal S, Jana M. An unusual and facile N-hetero cyclisation of 2-amino-4-(2-oxo-2-arylethyl)-4H-chromene-3-carbonitrile derivatives using hypervalent iodine in alcohol under ambient condition. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Momahed Heravi M, Zadsirjan V, Mollaiye M, Heydari M, Taheri Kal Koshvandi A. Salicylaldehydes as privileged synthons in multicomponent reactions. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Trifluoroethanol and liquid-assisted grinding method: a green catalytic access for multicomponent synthesis. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3206-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mohammadi Ziarani G, Aleali F, Lashgari N. Recent applications of barbituric acid in multicomponent reactions. RSC Adv 2016. [DOI: 10.1039/c6ra09874f] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This review aims to show representative examples of multicomponent reactions utilizing barbituric acid in the synthesis of various heterocyclic structures.
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Affiliation(s)
| | | | - Negar Lashgari
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
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Mane MM, Pore DM. Sulfamic Acid: Efficient, Cost-Effective Catalyst for Facile Synthesis of Deazaoxaflavin at Ambient Temperature. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2014.992075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mansing M. Mane
- Department of Chemistry, Shivaji University, Kolhapur, India
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Ratnakar Reddy K, Sambasiva Rao P, Jitender Dev G, Poornachandra Y, Ganesh Kumar C, Shanthan Rao P, Narsaiah B. Synthesis of novel 1,2,3-triazole/isoxazole functionalized 2H-Chromene derivatives and their cytotoxic activity. Bioorg Med Chem Lett 2014; 24:1661-3. [DOI: 10.1016/j.bmcl.2014.02.069] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/19/2014] [Accepted: 02/25/2014] [Indexed: 12/15/2022]
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Albadi J, Mansournezhad A, Darvishi-Paduk M. Poly(4-vinylpyridine): As a green, efficient and commercial available basic catalyst for the synthesis of chromene derivatives. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.01.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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