1
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Chang MY, Lee YL. One-pot synthesis of benzofused 8-oxabicyclo[3.3.1]nonanes via GaCl 3-mediated cyclocondensation of o-allylbenzaldehydes and 1,3-dicarbonyl synthons. Org Biomol Chem 2024; 22:1646-1653. [PMID: 38305467 DOI: 10.1039/d4ob00016a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
GaCl3-mediated one-pot cyclocondensation of o-allylbenzaldehydes and 1,3-dicarbonyls generates benzofused 8-oxabicyclo[3.3.1]nonanes in moderate to good yields in refluxing MeNO2 under easy-operational conditions. A plausible mechanism is proposed and discussed here. In the overall reaction process, various metal chloride-promoted conditions were investigated for one-pot cyclocondensation.
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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
- NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Yan-Ling Lee
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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2
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Recent Advances in the Use of Dimethyl Sulfoxide as a Synthon in Organic Chemistry. Top Curr Chem (Cham) 2022; 380:55. [DOI: 10.1007/s41061-022-00411-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 10/06/2022] [Indexed: 11/27/2022]
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3
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Luo R, Guo L, Liu W, Wang S. Copper-catalyzed synthesis of phenolic compounds with DMSO as the methylene source. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1902536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Run Luo
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China
| | - Lina Guo
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wenjie Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Cosmetics Engineering & Technology Research Center, Guangzhou, China
| | - Shaohua Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Cosmetics Engineering & Technology Research Center, Guangzhou, China
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4
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Burde AS, Karyakarte SD, Sylvester ED, Chemler SR. Copper-catalyzed enantioselective synthesis of bridged bicyclic ketals from 1,1-disubstituted-4-methylene-1,6-hexanediols and related alkenols. Chem Commun (Camb) 2021; 57:105-108. [PMID: 33326512 PMCID: PMC8018521 DOI: 10.1039/d0cc06404a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bridged bicyclic ketals display a range of bioactivities. Their catalytic enantioselective synthesis from acyclic 1,1-disubstituted alkene diols is disclosed. This reaction combines asymmetric catalysis with a distal radical migration. Alkynes and arenes undergo the group transfer.
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Affiliation(s)
- Ameya S Burde
- Chemistry Department, Natural Science Complex, State University of New York at Buffalo, Buffalo, New York 14260, USA.
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5
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Visible-light induced generation of bifunctional nitrogen-centered radicals: a concise synthetic strategy to construct bicyclo[3.2.1] octane and azepane cores. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9852-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Yamagiwa Y, Haruna N, Kawakami H, Matsumoto K. Improved and Practical Synthesis of the Integrastatin Core. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoshiro Yamagiwa
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Nozomi Haruna
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hideki Kawakami
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kouichi Matsumoto
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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7
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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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8
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Wu C, Yang X, Shang Y, Cheng HG, Yan W, Zhou Q. Synthesis of Benzofused Dioxabicycle Scaffolds via a Catellani Strategy. Org Lett 2019; 21:8938-8942. [PMID: 31670522 DOI: 10.1021/acs.orglett.9b03228] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reported is a modular strategy for the preparation of the unique benzofused dioxabicycle scaffolds involving a Catellani reaction of aryl iodides, epoxides, and terminal alkynes and an oxa-cyclization. This is a mild, scalable, chemoselective, and atom-economical protocol, compatible with various functionalized aryl iodides, epoxides, and terminal alkynes. With the ability to build up the molecular complexity rapidly and efficiently from feedstock chemicals, this method will have wide applications in organic synthesis.
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Affiliation(s)
- Chenggui Wu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China
| | - Xinjun Yang
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China
| | - Yong Shang
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China
| | - Hong-Gang Cheng
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China
| | - Wei Yan
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , 430072 Wuhan , China.,Institute for Advanced Studies , Wuhan University , 430072 Wuhan , China
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9
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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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10
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Zhou B, Liu Q, Wang H, Jin H, Liu Y. CuI/Cu(OTf)2/DMSO system-catalyzed intramolecular oxidative cyclization of (o-alkynyl)arylketones: Efficient synthesis of 1,4-naphthoquinones. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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11
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Chang MY, Hsiao YT, Lai KH. mCPBA-Mediated Intramolecular Oxidative Annulation of ortho-Crotyl or Cinnamyl Arylaldehydes: Synthesis of Benzofused Five-, Six-, and Seven-Membered Oxacycles. J Org Chem 2018; 83:14110-14119. [PMID: 30351146 DOI: 10.1021/acs.joc.8b02146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
mCPBA-mediated intramolecular oxidative annulation of ortho-crotyl or cinnamyl arylaldehydes provides chroman, coumaran, isochroman, and tetrahydrobenzo[ c]oxepine under different reaction conditions. This research investigates the reaction conditions for facile and 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
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Kai-Hsiang Lai
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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12
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Zhu H, Chen C, Li D, Wang P, Wang Y, Bai L, Yang D, Wang L. Direct Synthesis of a Dioxabenzobicyclo[3.2.1]octane Core from Salicylaldehydes. J Org Chem 2018; 83:12897-12902. [PMID: 30234985 DOI: 10.1021/acs.joc.8b01873] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A copper(II) trifluoromethanesulfonate via Prins reaction between salicylaldehydes and allyl alcohols is realized under mild conditions. A series of compounds containing dioxabenzobicyclo[3.2.1]octane motifs are obtained in moderate to good yields. The current method can efficiently construct the valuable structural motif from easily accessed starting materials, providing a smooth method to build benzobicyclo skeletons.
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Affiliation(s)
- Haiyong Zhu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Chao Chen
- Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Dan Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Pengxin Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Yuan Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Lutao Bai
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
| | - Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences , Lanzhou University , Lanzhou 730000 , China
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13
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Chang MY, Wu YS, Chen HY. CuI-Mediated Synthesis of Sulfonyl Benzofuran-3-ones and Chroman-4-ones. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00316] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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
| | - Yan-Shin Wu
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Han-Yu Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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14
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Sk MR, Bera SS, Maji MS. Weakly Coordinating, Ketone-Directed Cp*Co(III)-Catalyzed C–H Allylation on Arenes and Indoles. Org Lett 2017; 20:134-137. [DOI: 10.1021/acs.orglett.7b03440] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Md Raja Sk
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, W. B., India
| | - Sourav Sekhar Bera
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, W. B., India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, W. B., India
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15
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Hsueh NC, Chen HY, Chang MY. Construction of Sulfonyl Oxabenzo[3.3.1]bicyclic Core via Cyclocondensation of β-Ketosulfones and o-Formyl Allylbenzenes. J Org Chem 2017; 82:13324-13332. [PMID: 29164884 DOI: 10.1021/acs.joc.7b02425] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
NH4OAc mediated domino Knoevenagel/Diels-Alder cyclocondensation of β-ketosulfones 1 and o-formyl allylbenzenes 2 provides sulfonyl oxabenzo[3.3.1]bicyclic core 4 in a cosolvent of toluene and HOAc (v/v = 1/1) at reflux for 3 h. The intermediate 3 contains a chalcone motif. The uses of various ammonium salts and solvent systems are investigated for facile and efficient transformation. The plausible mechanisms have been proposed and the DFT calculations have been included.
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Affiliation(s)
- Nai-Chen Hsueh
- 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
| | - 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
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16
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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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17
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Zhu Y, Zhou J, Jin S, Dong H, Guo J, Bai X, Wang Q, Bu Z. Metal-free diastereoselective construction of bridged ketal spirooxindoles via a Michael addition-inspired sequence. Chem Commun (Camb) 2017; 53:11201-11204. [DOI: 10.1039/c7cc05813f] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A TfOH-catalyzed highly diastereoselective Michael addition/ketalization sequence of 3-hydroxyoxindoles and ortho-hydroxychalcones was developed, leading to biologically important bridged ketal spirooxindoles in moderate to excellent yields.
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Affiliation(s)
- Yanshuo Zhu
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jing Zhou
- School of Pharmaceutical Science
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Medical University University
- Chongqing 400016
- China
| | - Shaojing Jin
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Huahui Dong
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jiaomei Guo
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Xuguan Bai
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Qilin Wang
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Zhanwei Bu
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
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