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1
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Karimi S, Ma S, Qu M, Chen B, Ramig K, Greer EM, Szalda DJ, Neary MC, Berkowitz WF, Subramaniam G. A new synthesis of biologically active pyrroles: Formal synthesis of pentabromopseudilin, bimetopyrol, and several antitubercular agents. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sasan Karimi
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Shuai Ma
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Michelle Qu
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Biling Chen
- Department of ChemistryQueensborough Community College of the City University of New York Bayside New York
| | - Keith Ramig
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Edyta M. Greer
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - David J. Szalda
- Department of Natural SciencesBaruch College of the City University of New York New York New York
| | - Michelle C. Neary
- Department of ChemistryHunter College of the City University of New York New York New York
| | - William F. Berkowitz
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
| | - Gopal Subramaniam
- Department of Chemistry and BiochemistryQueens College of the City University of New York Flushing New York
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2
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Nardangeli N, Topolovčan N, Simionescu R, Hudlický T. Polarization Effect on Regioselectivity of Pd-Catalyzed Cyclization of 2-Alkynylbenzaldehydes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Nolan Nardangeli
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Nikola Topolovčan
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Razvan Simionescu
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
| | - Tomáš Hudlický
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines Ontario Canada
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3
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Liu MG, Liu N, Xu WH, Wang L. Tandem reaction strategy of the Passerini/Wittig reaction based on the in situ capture of isocyanides: One-pot synthesis of heterocycles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.057] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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4
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Synthesis of Polysubstituted 3-Methylisoquinolines through the 6π-Electron Cyclization/Elimination of 1-Azatrienes derived from 1,1-Dimethylhydrazine. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Zhang Z, Gao X, Wan Y, Huang Y, Huang G, Zhang G. Ammonium Acetate-Promoted One-Pot Tandem Aldol Condensation/Aza-Addition Reactions: Synthesis of 2,3,6,7-Tetrahydro-1 H-pyrrolo[3,2- c]pyridin-4(5 H)-ones. ACS OMEGA 2017; 2:6844-6851. [PMID: 31457270 PMCID: PMC6645481 DOI: 10.1021/acsomega.7b00626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 10/03/2017] [Indexed: 06/10/2023]
Abstract
An efficient tandem intermolecular one-pot aldol condensation/aza-addition reaction of 2-methyl-3-carbamoylpyrroles and aldehydes was developed for the synthesis of 2,3,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-ones. The reaction proceeded using only 3.0 equiv of ammonium acetate promoter in green solvent poly(ethylene glycol)-400 at 100 °C to afford a series of pyrrolo[3,2-c]pyridinone derivatives in good to excellent yields.
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Affiliation(s)
- Zhiguo Zhang
- Henan
Key laboratory of Organic Functional Molecule and Drug Innovation,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions,
Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
- Jilin
Province Key Laboratory of Organic Functional Molecular Design &
Synthesis, Northeast Normal University, Jilin, Changchun 130024, China
| | - Xiaolong Gao
- Henan
Key laboratory of Organic Functional Molecule and Drug Innovation,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions,
Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yameng Wan
- Henan
Key laboratory of Organic Functional Molecule and Drug Innovation,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions,
Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuanyuan Huang
- Henan
Key laboratory of Organic Functional Molecule and Drug Innovation,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions,
Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guoqing Huang
- Handan
Purification Equipment Research Institute, Handan, Hebei 056027, China
| | - Guisheng Zhang
- Henan
Key laboratory of Organic Functional Molecule and Drug Innovation,
Collaborative Innovation Center of Henan Province for Green Manufacturing
of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions,
Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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7
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Chan CK, Tsai YL, Chang MY. Construction of Nitrated Benzo[3.3.1]bicyclic Acetal/Ketal Core via Nitration of o-Carbonyl Allylbenzenes. Org Lett 2017; 19:1358-1361. [PMID: 28257215 DOI: 10.1021/acs.orglett.7b00245] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Intramolecular annulation of o-carbonyl allylbenzenes was achieved to construct novel nitrated [6,6,6]tricycles having an acetal or ketal motif in good yields. The expeditious one-step nitration route provides 4 or 5 new bond formations, including 2 or 3 C-N bonds and 2 C-O bonds. The structural framework of benzobicycle [3.3.1] is confirmed by X-ray crystallographic analysis. A plausible mechanism is proposed.
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Affiliation(s)
- Chieh-Kai Chan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
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8
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Chan CK, Chen YH, Tsai YL, Chang MY. Synthesis of Substituted 1,6-Diarylnaphthalenes via a Tandem Claisen Rearrangement and Ene Reaction Protocol. J Org Chem 2017; 82:3317-3326. [DOI: 10.1021/acs.joc.7b00108] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chieh-Kai Chan
- Department of Medicinal and Applied Chemistry, General Research Centers of R&D office, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Hsin Chen
- Department of Medicinal and Applied Chemistry, General Research Centers of R&D office, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, General Research Centers of R&D office, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, General Research Centers of R&D office, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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9
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Abstract
A synthetic route to derive the skeleton of naphthalenes starting with isovanillin is described with modest total yields via the key transformation of metal triflate-mediated intramolecular benzannulation of o-formyl or o-benzoyl allylbenzenes in MeNO2 at rt.
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Affiliation(s)
- Chieh-Kai Chan
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Heui-Sin Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
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10
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Chan CK, Tsai YL, Chan YL, Chang MY. Synthesis of Substituted 2,3-Benzodiazepines. J Org Chem 2016; 81:9836-9847. [DOI: 10.1021/acs.joc.6b01935] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chieh-Kai Chan
- Department of Medicinal and Applied Chemistry and General Research Centers of R&D Office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry and General Research Centers of R&D Office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yi-Ling Chan
- Department of Medicinal and Applied Chemistry and General Research Centers of R&D Office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry and General Research Centers of R&D Office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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11
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Saikia AK, Ghosh P, Deka MJ, Borah M. Synthesis of dihydroindeno[1,2-c]isochromene via cascade cyclization and Friedel–Crafts reaction. RSC Adv 2016. [DOI: 10.1039/c6ra22329j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dihydroindeno[1,2-c]isochromene can be efficiently prepared from alkynol and aldehydesviacascade cyclization and Friedel–Crafts reaction. The reaction is highly regioselective.
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Affiliation(s)
- Anil K. Saikia
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Priya Ghosh
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Manash Jyoti Deka
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Madhurjya Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
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