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Santhoshkumar AC, Durugappa B, Doddamani SV, Siby A, Valmiki PK, Somappa SB. Diastereoselective Synthesis of Fused Tricyclic Pyridopyrimidines via Tandem Cyclization of Allenoates and Cyclic Amidines. Org Lett 2023; 25:7711-7715. [PMID: 37843814 DOI: 10.1021/acs.orglett.3c03053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
The tandem cyclization of easily accessible allenoates and cyclic amidines for the synthesis of functionalized tricyclic pyridopyrimidines is reported herein. The annulation featured a broad substrate scope with good functional group tolerance under very mild conditions (35 examples, 32-85% yields). The pyridopyrimidines were obtained in a very short reaction time (1 min), at room temperature, under neat conditions, which offers an alternative way to the sustainable synthesis of functionalized pyridopyrimidines. The scalability of the developed protocol is further demonstrated by a gram-scale synthesis.
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Affiliation(s)
- Athira C Santhoshkumar
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Basavaraja Durugappa
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Siddalingeshwar V Doddamani
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Aiswarya Siby
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
| | - Praveen K Valmiki
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sasidhar B Somappa
- Chemical Sciences & Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Belyaeva KV, Nikitina LP, Afonin AV, Grishchenko LA, Trofimov BA. Cyanoquinolines and Furo[3,4- b]quinolinones Formation via On-The-Spot 2,3-Functionalization of Quinolines with Cyanopropargylic Alcohols. J Org Chem 2021; 86:3800-3809. [PMID: 33605731 DOI: 10.1021/acs.joc.0c02644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A convenient approach to 2-(1-ethoxyalkoxy)-3-cyanoquinolines (in up to 50% yields) has been developed. The approach comprises functionalization of quinolines with acetals of cyanopropargylic alcohols (KOH/H2O/MeCN, 55-60 °C) followed by their transformation to furo[3,4-b]quinolinones (in up to 98% yields) via the sequential removal of acetal protection and intramolecular cyclization/hydration (7% aqueous HCl, acetone, 20-25 °C).
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Affiliation(s)
- Kseniya V Belyaeva
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian Federation
| | - Lina P Nikitina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian Federation
| | - Andrey V Afonin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian Federation
| | - Ludmila A Grishchenko
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian Federation
| | - Boris A Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian Federation
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Reddy TP, Gujral J, Roy P, Ramachary DB. Catalytic Ynone–Amidine Formal [4 + 2]-Cycloaddition for the Regioselective Synthesis of Tricyclic Azepines. Org Lett 2020; 22:9653-9657. [DOI: 10.1021/acs.orglett.0c03711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Prabhakar Reddy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
| | - Jagjeet Gujral
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
| | - Pritam Roy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
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Affiliation(s)
- Jacques Muzart
- Institut de Chimie Moléculaire de Reims, UMR 7312, CNRS - Université de Reims Champagne-Ardenne B.P. 1039, 51687 Reims Cedex 2 France
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Vitkovskaya NM, Orel VB, Absalyamov DZ, Trofimov BA. Self-Assembly of N-Phenyl-2,5-dimethylpyrrole from Acetylene and Aniline in KOH/DMSO and KOBut/DMSO Superbase Systems: A Quantum-Chemical Insight. J Org Chem 2020; 85:10617-10627. [DOI: 10.1021/acs.joc.0c01185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Nadezhda M. Vitkovskaya
- Laboratory of Quantum Chemical Modeling of Molecular Systems, Irkutsk State University, 1 K. Marks St., Irkutsk 664003, Russian Federation
| | - Vladimir B. Orel
- Laboratory of Quantum Chemical Modeling of Molecular Systems, Irkutsk State University, 1 K. Marks St., Irkutsk 664003, Russian Federation
| | - Damir Z. Absalyamov
- Laboratory of Quantum Chemical Modeling of Molecular Systems, Irkutsk State University, 1 K. Marks St., Irkutsk 664003, Russian Federation
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
| | - Boris A. Trofimov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
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Zubenko AA, Morkovnik AS, Divaeva LN, Kartsev VG, Suponitsky KY, Klimenko AI. Synthesis of phenanthro[1,2- d ]azepine derivatives containing a new heterocyclic system from the aporphine alkaloid glaucine. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.05.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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