1
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Lin LC, Suresh S, Lin KW, Kavala V, Yao CF. One-Pot Knoevenagel/Imination/6π-Azaelectrocyclization Sequence for the Synthesis of Disubstituted Nicotinonitriles. J Org Chem 2023. [PMID: 37437261 DOI: 10.1021/acs.joc.3c00929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
We report on a copper-catalyzed three-component reaction for the synthesis of disubstituted nicotinonitriles using 3-bromopropenals, benzoylacetonitriles, and ammonium acetate (NH4OAc). The Knoevenagel-type condensation of 3-bromopropenals with benzoylacetonitriles gives δ-bromo-2,4-dienones that contain strategically placed functional groups that react with the ammonia generated in situ to give the corresponding azatrienes. These azatrienes can then be transformed into trisubstituted pyridines under the reaction conditions via a reaction sequence involving 6π-azaelectrocyclization and aromatization.
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Affiliation(s)
- Li-Chun Lin
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Sundaram Suresh
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Kun-Wu Lin
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
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2
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Yu W, Wang P, Xu K, Li H. Iron‐Promoted Radical Cyclization of β, γ‐Unsaturated Oximes: Dual Role of Iron(III) Nitrate as a Promoter and Nitrooxy Source. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Wei Yu
- Key Laboratory of Green and Precise Synthetic Chemistry and Application Ministry of Education; School of Chemistry and Material Science, Huaibei Normal University Huaibei, Anhui 235000 P. R. China
| | - Pei‐Long Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Application Ministry of Education; School of Chemistry and Material Science, Huaibei Normal University Huaibei, Anhui 235000 P. R. China
- Information College Huaibei Normal University Huaibei 235000 P. R. China
| | - Ke Xu
- Key Laboratory of Green and Precise Synthetic Chemistry and Application Ministry of Education; School of Chemistry and Material Science, Huaibei Normal University Huaibei, Anhui 235000 P. R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Application Ministry of Education; School of Chemistry and Material Science, Huaibei Normal University Huaibei, Anhui 235000 P. R. China
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3
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Chaudhary B, Kulkarni N, Saiyed N, Chaurasia M, Desai S, Potkule S, Sharma S. β
‐Trifluoromethyl
α
,
β
‐unsaturated Ketones: Efficient Building Blocks for Diverse Trifluoromethylated Molecules. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bharatkumar Chaudhary
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Nehanaz Saiyed
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Meenakshi Chaurasia
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Surbhi Desai
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Sagar Potkule
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Satyasheel Sharma
- Department of Natural Products National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
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4
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Ghosh A, Mane MV, Rode HB, Patil SA, Sridhar B, Dateer RB. Catalyst-Free Regioselective [3+2] Cycloadditions of α,β-unsaturated N-arylnitrones with Alkenes to Access Functionalized Isoxazolidines: A DFT Study. Chem Asian J 2020; 15:899-903. [PMID: 32056350 DOI: 10.1002/asia.201901754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/10/2020] [Indexed: 01/20/2023]
Abstract
The catalyst-free regioselective [3+2]-cycloaddition of α,β-unsaturated N-arylnitrones with alkenes are developed. The series of synthetically important functionalized isoxazolidines are prepared in good to excellent yields by step economic pathway under ligand and transition-metal-free conditions. The regioselective cycloaddition pathway supported by control experiment and computational study.
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Affiliation(s)
- Arnab Ghosh
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Manoj V Mane
- Physical Chemistry Division, CSIR - National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411 008, India.,KAUST Catalysis Centre, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Haridas B Rode
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad, Telangana, 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Siddappa A Patil
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
| | - Balasubramanian Sridhar
- Center for X-ray crystallography Analytical Department, CSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad, Telangana, 500007, India
| | - Ramesh B Dateer
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka, 562112, India
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5
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Sim J, Viji M, Rhee J, Jo H, Cho SJ, Park Y, Seo S, Jung K, Lee H, Jung J. γ
‐Functionalization of
α,β
‐Unsaturated Nitriles under Mild Conditions: Versatile Synthesis of 4‐Aryl‐2‐Bromopyridines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jaeuk Sim
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Mayavan Viji
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Jeongtae Rhee
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Hyeju Jo
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Suk Joon Cho
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
- Bio & Drug Discovery DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
| | - Yunjeong Park
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Seung‐Yong Seo
- College of Pharmacy and Gachon Institute of Pharmaceutical SciencesGachon University Incheon 21936 Republic of Korea
| | - Kwan‐Young Jung
- Bio & Drug Discovery DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
| | - Heesoon Lee
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
| | - Jae‐Kyung Jung
- College of Pharmacy and Medicinal Research Center (MRC)Chungbuk National University Cheongju 28160 Republic of Korea
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6
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Chen J, Ding Y, Gao Y, Zhou D, Hider R, Ma DY. Selectfluor-promoted Synthesis of 2,4- and 2,6-Diarylpyridines Through Annulation of Aromatic Ketones with an Ammonium Source in DMF. ChemistrySelect 2019. [DOI: 10.1002/slct.201900113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Chen
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Yuxin Ding
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Yejun Gao
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
| | - Dongheng Zhou
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
- Department of Biochemistry and Molecular Biology; School of Medicine; Zhejiang University; Hangzhou 310058 P R China
| | - Robert Hider
- Institute of Pharmaceutical Science; King's College London; Franklin-Wilkins Building; Stamford Street; London SE1 9NH UK
| | - Dr Yongmin Ma
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053 P R China
- School of Pharmaceutical and Chemical Engineering; Taizhou University; Taizhou 318000 P R China
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