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Piltan M. Syntheses of Novel Tetrasubstituted Thiophenes from Benzene-1,2-Diamines, Ethyl Bromopyruvate, Malononitrile, and Aryl Isothiocyanates. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2019.1710854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mohammad Piltan
- Department of Chemistry, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
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Abstract
Dihydropyrrolo[1,2-a]pyrazinone rings are a class of heterocycles present in a wide range of bioactive natural products and analogues thereof. As a direct result of their bioactivity, the synthesis of this privileged class of compounds has been extensively studied. This review provides an overview of these synthetic pathways. The literature is covered up until 2020 and is organized according to the specific strategies used to construct the scaffold: fusing a pyrazinone to an existing pyrrole, employing a pyrazinone-first strategy, an array of multicomponent reactions and some miscellaneous reactions.
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Li Y, Yu J, Bi Y, Yan G, Huang D. Tandem Reactions of Ynones:viaConjugate Addition of Nitrogen‐, Carbon‐, Oxygen‐, Boron‐, Silicon‐, Phosphorus‐, and Sulfur‐Containing Nucleophiles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900611] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yang Li
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Jian Yu
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Yicheng Bi
- Department of ChemistryQingdao University of Science & Technology Qingdao Shandong People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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Piltan M. One-Pot Synthesis of Thiazolo[3,4-a]Quinoxalines from 1,2-Diamines, Aryl Isothiocyanates and Ethyl Bromopyruvate. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15127369231305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Some hitherto unreported thiazolo[3,4- a]quinoxaline derivatives have been synthesised in excellent yields via a one-pot, three-component reaction of benzene-1,2-diamines, ethyl bromopyruvate and aryl isothiocyanates in MeCN, for the first time. The protocol avoids the use of any catalysts or chromatographic separations and provides a wide range of novel thiazolo[3,4- a]quinoxalines.
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Affiliation(s)
- Mohammad Piltan
- Department of Chemistry, Faculty of Science, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
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