1
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Hsueh NC, Chen KT, Chang MY. Tandem C- and O-alkylative annulation of β-ketosulfones with 1,2-bisbromomethyl arenes: one-pot construction of sulfonyl indanes and dioxadibenzofused macrocycles. Org Biomol Chem 2023; 21:1487-1500. [PMID: 36661132 DOI: 10.1039/d2ob02199d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Herein, a tandem synthetic route for constructing sulfonyl indanes and dioxadibenzofused macrocycles is described. This strategy involves a transition-metal-free, base-mediated tandem C- and O-alkylative annulation of β-ketosulfones with 1,2-bisbromomethyl arenes with moderate to excellent yields under open-vessel reaction conditions. In the overall reaction process, two carbon-carbon (C-C) and two carbon-oxygen (C-O) bonds are formed. Various base-promoted reaction conditions are screened for this one-pot easy-to-operate conversion.
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Affiliation(s)
- Nai-Chen Hsueh
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Kuan-Ting Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.,NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
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2
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Prabha K, Satheeshkumar R, Aathi MS, Chandrasekar C, Sukantha TA, Gnanamangai BM, Acevedo R, Sayin K, Prasad KJR. Eaton's reagent is an alternative of PPA: Solvent free synthesis, molecular docking and ADME studies of new angular and linear carbazole based naphtho naphthyridines. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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3
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Hsueh NC, Chang MY. BF 3·OEt 2-mediated nucleophilic fluorocyclization of sulfonyl 3-methylene-oxabenzocyclooctan-6-ones. Diastereocontrolled synthesis of benzofused fluorooxabicyclo[4.2.1]nonanes. Org Biomol Chem 2022; 20:7503-7518. [PMID: 36106957 DOI: 10.1039/d2ob01459a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe a facile-operational, high-yield method for the diastereocontrolled preparation of novel sulfonyl benzofused fluorooxabicyclo[4.2.1]nonanes by a straightforward synthetic route, including (i) NaBH4-mediated reduction of sulfonyl 3-methylene-oxabenzocyclooctan-6-ones and (ii) BF3·OEt2-mediated intramolecular nucleophilic fluorocyclization. The plausible mechanism for the preparation is proposed and discussed. This protocol can easily install a fluoro-atom on the bridged head position in a short time and under mild conditions, resulting in one carbon-carbon and one carbon-fluorine bond formation.
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Affiliation(s)
- Nai-Chen Hsueh
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.,NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
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4
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Liu YC, Chen P, Li XJ, Xiong BQ, Liu Y, Tang KW, Huang PF. Visible-Light-Induced Dual Acylation of Alkenes for the Construction of 3-Substituted Chroman-4-ones. J Org Chem 2022; 87:4263-4272. [PMID: 35234478 DOI: 10.1021/acs.joc.1c03100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heterocyclic compounds, especially oxygen-containing heterocyclic compounds, are crucial moieties in bioactive compounds and drug leads. Substituted chroman-4-ones are a kind of the most significant structural skeletons. Herein, we report a visible-light-induced dual acylation of alkenes for constructing 3-substituted chroman-4-ones, which undergoes a radical tandem cyclization reaction through carbon-carbon bond cleavage of oxime esters by a nitrogen-centered radical strategy. A series of 3-substituted chroman-4-ones were prepared with up to 86% yield.
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Affiliation(s)
- Yi-Chen Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Xue-Jiao Li
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Peng-Fei Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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5
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Yamuna E, Prabakaran K, Zeller M, Rajendra Prasad KJ. Efficient Synthesis of benzo[
h
]carbazol[3,2‐
b
][1,6]naphthyridines. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ezhumalai Yamuna
- Department of Chemistry Karpagam Academy of Higher Education Eachanari Coimbatore India
| | - Kumaresan Prabakaran
- Department of Chemistry PSG College of Arts and Science, Peelamedu Coimbatore India
| | - Matthias Zeller
- Department of Chemistry Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907‐2084 Youngstown Ohio USA
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6
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Diana EJ, Kanchana US, Mathew TV. Current developments in the synthesis of 4-chromanone-derived compounds. Org Biomol Chem 2021; 19:7995-8008. [PMID: 34494068 DOI: 10.1039/d1ob01352a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The chroman-4-one framework is a significant structural entity that belongs to the class of oxygen-containing heterocycles. It acts as a major building block in a large class of medicinal compounds, and synthetic compounds exhibit a broad variety of remarkable biological and pharmaceutical activities. Several studies have been performed to improve the methodologies of 4-chromanone-derived compounds. This review focuses on the major synthetic methods of preparation reported on chroman-4-one derivatives from 2016 to 2021.
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Affiliation(s)
- Elizabeth J Diana
- Department of Chemistry, St. Thomas College Pala, Arunapuram P.O., Kottayam, Kerala, 686574, India. .,Department of Chemistry, Alphonsa College Pala, Arunapuram P.O., Kottayam, Kerala, 686574, India.
| | - U S Kanchana
- Department of Chemistry, St. Thomas College Pala, Arunapuram P.O., Kottayam, Kerala, 686574, India.
| | - Thomas V Mathew
- Department of Chemistry, St. Thomas College Pala, Arunapuram P.O., Kottayam, Kerala, 686574, India.
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7
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Kolandaivel P, Rajendran S, Karnam Jayarampillai RP. Synthesis of novel benzo naphtho naphthyridines from 2,4‐dicloroquinolines. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Prabha Kolandaivel
- Department of Chemistry K. S. Rangasamy College of Technology Tiruchengode India
- Department of Chemistry Bharathiar University Coimbatore India
| | - Satheeshkumar Rajendran
- Department of Chemistry Bharathiar University Coimbatore India
- Departamento de Química Orgánica, Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Santiago de Chile Chile
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8
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Chang M, Chen K. Bi(OTf)
3
‐Mediated (4+1) Annulation of α‐Sulfonyl
o
‐Hydroxyacetophenones with α‐Hydroxy Arylketones to Access Sulfonyl 2‐Aroylbenzofurans. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Meng‐Yang Chang
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 807 Taiwan
- Department of Medical Research Kaohsiung Medical University Hospital Kaohsiung 807 Taiwan
| | - Kuan‐Ting Chen
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 807 Taiwan
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9
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Chang MY, Tsai MC. Synthesis of benzofused cyclobutaoxepanones via intramolecular annulation of o-cinnamyl chalcones. Org Biomol Chem 2021; 19:2254-2268. [PMID: 33605971 DOI: 10.1039/d1ob00058f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Intramolecular stereoselective annulation of o-cinnamyloxy chalcones provides two kinds of tricyclic benzofused cyclobutaoxepanones via the synthesized routes of DABCO/NBS (1,4-diazabicyclo[2.2.2]octane/N-bromosuccinimide)-mediated Baylis-Hillman type cyclization or low-pressure mercury (LP Hg) lamp-promoted photocontrolled [2 + 2] cycloaddition. Diversified reaction conditions have been investigated for one-pot facile, high-yield transformation.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan. and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Min-Chen Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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10
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Sharma S, Sarma B, Baishya G. Direct synthesis of 4-hydroxycoumarins and 4-hydroxy-6-methyl-2-pyrone containing chroman-4-ones via a silver catalyzed radical cascade cyclization reaction. NEW J CHEM 2021. [DOI: 10.1039/d1nj03437e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A novel AgNO3/K2S2O8 catalyzed radical cascade cyclization reaction of 2-(allyloxy)arylaldehydes with 4-hydroxycoumarins and 4-hydroxy-6-methyl-2-pyrone produces two new series of chroman-2-ones.
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Affiliation(s)
- Suraj Sharma
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Tezpur, 784028, India
| | - Gakul Baishya
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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11
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Li GH, Han QQ, Sun YY, Chen DM, Wang ZL, Xu XM, Yu XY. Visible-light induced cascade radical cyclization of sulfinic acids and o-(allyloxy)arylaldehydes towards functionalized chroman-4-ones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Yadav D, Krishna, Sharma SK, Menon RS. Regioselective synthesis of arylsulfonyl heterocycles from bromoallyl sulfones via intramolecular Heck coupling reaction. Org Biomol Chem 2020; 18:7188-7192. [PMID: 32897285 DOI: 10.1039/d0ob01623c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Indoles, benzofurans and benzosultams endowed with arylsulfonyl groups were prepared in two steps from 2-bromoallyl sulfones. ortho-Halosulfonamides and ortho-iodophenol reacted with 2-bromoallyl sulfones in the presence of cesium carbonate to furnish products resulting from a formal vinylic substitution reaction. Palladium-catalyzed intramolecular Heck reaction of these adducts furnished sulfonylated indoles, benzosultams and benzofurans. Isomerization of the double bond participating in the Heck reaction under basic conditions led to the formation of two isomeric products in two cases. Conditions for selectively accessing each of the regioisomeric indoles were developed.
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Affiliation(s)
- Deepak Yadav
- Department of Chemistry, School of Chemical Sciences, Central University of Haryana, Mahendergarh, Haryana 123 029, India.
| | - Krishna
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Rajeev S Menon
- Department of Chemistry, School of Chemical Sciences, Central University of Haryana, Mahendergarh, Haryana 123 029, India.
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13
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Chang MY, Tsai YL, Chen HY. CuBr 2-Mediated One-Pot Synthesis of Sulfonyl 9-Fluorenylidenes. J Org Chem 2020; 85:6897-6909. [PMID: 32383591 DOI: 10.1021/acs.joc.0c00035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this article, a high-yield method for the synthesis of sulfonyl 9-fluorenylidenes is described, which consists of a one-pot straightforward three-step synthetic route, including (i) CuBr2-mediated α-bromination of o-arylacetophenone, (ii) sequential nucleophilic substitution of the resulting α-bromo o-arylacetophenone with sodium sulfinate (RSO2Na), and (iii) the CuBr2-mediated intramolecular Friedel-Crafts cyclizative dehydration. A plausible mechanism is proposed and discussed. This protocol provides a highly effective regio- and stereoselective annulation via the formation of one carbon-carbon (C-C) bond and one carbon-sulfur (C-S) bond.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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14
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Huang HL, Du JY, Li QL, Gao F, Ma CL. Visible-Light-Promoted Cascade Radical Cyclization: Synthesis of Chroman-4-ones and Dihydroquinolin-4-ones. J Org Chem 2020; 85:3963-3972. [PMID: 32037828 DOI: 10.1021/acs.joc.9b03253] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel visible-light photoredox catalysis protocol for the effective and efficient synthesis of 3-substituted chroman-4-ones and 2,3-dihydroquinolin-4(1H)-ones via tandem radical addition/cyclization of alkenyl aldehydes has been described. This reaction features a broad substrate scope, mild reaction conditions, and good functional group tolerance character.
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Affiliation(s)
- Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Qian-Li Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Fei Gao
- Institude of Translation Medicine, Shanghai University, Shanghai, 2004444, China
| | - Chun-Lin Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
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15
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Chan CK, Lai CY, Lo WC, Cheng YT, Chang MY, Wang CC. p-TsOH-mediated synthesis of substituted 2,4-diaryl-3-sulfonylquinolines from functionalized 2-aminobenzophenones and aromatic β-ketosulfones under microwave irradiation. Org Biomol Chem 2020; 18:305-315. [PMID: 31845709 DOI: 10.1039/c9ob02445j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study describes an efficient protocol for the preparation of substituted 2,4-diaryl-3-sulfonylquinolines from functionalized 2-aminobenzophenones and aromatic β-ketosulfones by using p-toluenesulfonic acid monohydrate under microwave irradiation. In this atom-economical synthetic route, a series of pharmaceutically active 3-arylsulfonylquinolines with good functional group tolerance are prepared in good to excellent yields. Some structures are confirmed by single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Chieh-Kai Chan
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.
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16
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Hsueh NC, Tsai MC, Chang MY, Chen HY. Construction of Sulfonyl Dihydrobenzo[ c]xanthen-7-ones Core via NH 4OAc/PdCl 2/CuCl 2-Mediated Double Cyclocondensation of α-Sulfonyl o-Hydroxyacetophenones with 2-Allylbenzaldehydes. J Org Chem 2019; 84:15915-15925. [PMID: 31775002 DOI: 10.1021/acs.joc.9b02387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
NH4OAc/PdCl2/CuCl2 mediated domino double cyclocondensation of α-sulfonyl o-hydroxyacetophenones and 2-allylbenzaldehydes provides tetracyclic sulfonyl dihydrobenzo[c]xanthen-7-one core with good to excellent yields in MeOH. The intermediates contain a 3-sulfonyl flavanone motif. Only water is generated as a byproduct. The use of various catalysts and reaction conditions is studied for the facile-operational conversion.
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Affiliation(s)
- Nai-Chen Hsueh
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Min-Chen Tsai
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan.,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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17
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Chang MY, Chen SM, Hsiao YT. Trifluoroacetic Anhydride Mediated One-Pot Synthesis of 1-Aryl Isochroman-3-ones via the Carboxy-Pictet–Spengler Reaction. J Org Chem 2019; 84:11687-11698. [DOI: 10.1021/acs.joc.9b01605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Shin-Mei Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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18
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Zhou N, Wu M, Zhang M, Zhou X. Visible‐Light‐Induced Difluoroacetylation of O‐(Allyloxy)Aryl‐Aldehydes: Access to Difluoroacetylated Chroman‐4‐ones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900121] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids Ministry of Education Anhui Key Laboratory of Molecule-Based Materials College of Chemistry and Materials ScienceAnhui Normal University Wuhu, Anhui 241000 China
| | - Meixia Wu
- Key Laboratory of Functionalized Molecular Solids Ministry of Education Anhui Key Laboratory of Molecule-Based Materials College of Chemistry and Materials ScienceAnhui Normal University Wuhu, Anhui 241000 China
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids Ministry of Education Anhui Key Laboratory of Molecule-Based Materials College of Chemistry and Materials ScienceAnhui Normal University Wuhu, Anhui 241000 China
| | - Xiaoqiang Zhou
- College of chemistry and materialWeinan Normal University Weinan 714099, Shaanxi province China
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19
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Xiao YM, Liu Y, Mai WP, Mao P, Yuan JW, Yang LR. A Novel and Facile Synthesis of Chroman-4-one Derivatives via
Cascade Radical Cyclization Under Metal-free Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201900147] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yong-Mei Xiao
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Yang Liu
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Wen-Peng Mai
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
- School of Materials and Chemical Engineering; Henan University of Engineering; Zhengzhou 450006 China
| | - Pu Mao
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Jin-Wei Yuan
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
| | - Liang-Ru Yang
- School of Chemistry and Chemical Engineering; Henan University of Technology; Zhengzhou 450001 China
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20
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Chang MY, Chen HY, Tsai YL. Intramolecular Benzannulation of 3-Sulfonyl-2-benzylchromen-4-ones: Synthesis of Sulfonyl Dibenzooxabicyclo[3.3.1]nonanes. J Org Chem 2019; 84:443-449. [PMID: 30547592 DOI: 10.1021/acs.joc.8b02726] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In this work, a concise route for the synthesis of sulfonyl dibenzo-oxabicyclo[3.3.1]nonanes by a two-step route is described, including (i) NaBH4/LiCl-mediated reduction of 3-sulfonyl-2-benzylchromen-4-ones and (ii) sequential BF3·OEt2-mediated intramolecular annulation of the resulting 3-sulfonyl-2-benzylchroman-4-ols. A plausible mechanism is proposed and discussed herein. This protocol provides a highly effective stereocontrolled aryl-hydroxyl Friedel-Crafts-type cross-coupling to construct the tetra- or pentacyclic bridged framework. The use of various reaction conditions is investigated for an efficient transformation.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan.,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan
| | - Han-Yu Chen
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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21
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Sankar B, Harikrishnan M, Raja R, Sadhasivam V, Malini N, Murugesan S, Siva A. Design of a simple and efficient synthesis for bioactive novel pyrazolyl–isoxazoline hybrids. NEW J CHEM 2019. [DOI: 10.1039/c9nj01532a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and new methodology has been developed for the synthesis of novel bioactive pyrazolyl–isoxazoline hybrids using pyrazoline-substituted oxime. Among the hybrid materials, 6m and 6p were found to show the best anti-bacterial and anti-fungal activities.
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Affiliation(s)
- Balakrishnan Sankar
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Muniyasamy Harikrishnan
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Ranganathan Raja
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Velu Sadhasivam
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Nelson Malini
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Sepperumal Murugesan
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
| | - Ayyanar Siva
- Supramolecular and Organometallic Chemistry Lab
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
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22
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Chang MY, Chen HY, Tsai YL. Temperature-Controlled Desulfonylative Condensation of α-Sulfonyl o-Hydroxyacetophenones and 2-Formyl Azaarenes: Synthesis of Azaaryl Aurones and Flavones. J Org Chem 2018; 84:326-337. [DOI: 10.1021/acs.joc.8b02857] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Han-Yu Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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23
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Hu B, Zhang Q, Zhao S, Wang Y, Xu L, Yan S, Yu F. Direct Oxidative Disulfenylation/Cyclization of 2′‐Hydroxyacetophenones with Thiophenols for the Synthesis of 2,2‐Dithio‐Benzofuran‐3(2
H
)‐Ones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801138] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biao Hu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Qiaohe Zhang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Siyun Zhao
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Yanqin Wang
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Li Xu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
| | - Shengjiao Yan
- School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and TechnologyKunming University of Science and Technology Kunming 650500 People's Republic of China
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24
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Hu H, Chen X, Sun K, Wang J, Liu Y, Liu H, Fan L, Yu B, Sun Y, Qu L, Zhao Y. Silver-Catalyzed Radical Cascade Cyclization toward 1,5-/1,3-Dicarbonyl Heterocycles: An Atom-/Step-Economical Strategy Leading to Chromenopyridines and Isoxazole-/Pyrazole-Containing Chroman-4-Ones. Org Lett 2018; 20:6157-6160. [PMID: 30251870 DOI: 10.1021/acs.orglett.8b02627] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel and convenient silver-catalyzed radical cascade cyclization toward a large variety of 1,5-/1,3-dicarbonyl heterocycles containing a chroman-4-one, indanone, or 2,3-dihydroquinolin-4(1 H)-one moiety was developed, by reacting various 2-functionalized benzaldehydes, including 2-allyloxy benzaldehydes, 2-allyl benzaldehyde, and 2-N(Ts)CH2-CH═CH2 substituted benzaldehyde, with 1,3-dicarbonyl compounds in the presence of AgNO3/K2S2O8 in one pot under mild reaction conditions. The newly obtained 1,5-/1,3-dicarbonyl-containing heterocycles were further used directly to synthesize more structurally diverse polyheterocycles, mainly including chromenopyridines as well as isoxazole- or pyrazole-containing chroman-4-ones.
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Affiliation(s)
- Hao Hu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Xiaolan Chen
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China.,The Key Laboratory for Chemical Biology of Fujian Province , Xiamen University , Xiamen 361005 , China
| | - Kai Sun
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Junchao Wang
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Yan Liu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Hui Liu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Lulu Fan
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Bing Yu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Yuanqiang Sun
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Lingbo Qu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Yufen Zhao
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications. College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China.,The Key Laboratory for Chemical Biology of Fujian Province , Xiamen University , Xiamen 361005 , China
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25
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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