1
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Korzhenko KS, Yushkova AS, Osipov DV, Rashchepkina DA, Demidov OP, Osyanin VA. Divergent Transformations of 2-Nitro-1 H-benzo[ f]chromenes in Reactions with Alkylidenemalononitriles: Access to Naphtho[2,1- b]furans via Base-Mediated Pyran Ring Contraction. Org Lett 2024; 26:1310-1315. [PMID: 38329453 DOI: 10.1021/acs.orglett.3c03879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The action of 2-(1-arylethylidene)malononitriles on 2-nitro-1H-benzo[f]chromenes in the presence of Et3N and MoO3·2H2O results in naphtho[2,1-b]furans containing an allylidenemalononitrile unit in the α-position. The reaction proceeds with contraction of the pyran ring via a cascade carba-Michael addition/retro-oxa-Michael reaction/tautomerization/SN2/oxidation process. In contrast, the reaction of 2-nitro-1H-benzo[f]chromenes with the cyclic Knoevenagel adduct derived from 1-indanone and malononitrile leads to dihydroindeno[1,2-c]xanthenes. The possibility of further transformations of naphtho[2,1-b]furan derivatives as useful precursors and their optical properties were also investigated.
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Affiliation(s)
- Kirill S Korzhenko
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
| | - Anastasiya S Yushkova
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
| | - Dmitry V Osipov
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
| | - Daria A Rashchepkina
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
| | - Oleg P Demidov
- North Caucasian Federal University, 1 Pushkina St., Stavropol 355009, Russia
| | - Vitaly A Osyanin
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
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2
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Azizzade M, Rashidi Ranjbar P, Sajadi A. Palladium-Catalyzed Oxidative Annulation Leading to Substituted Pyrrolo[3,2,1- jk]carbazoles by Sequential C-N and C-C Bond Formation. Org Lett 2023; 25:1823-1828. [PMID: 36926942 DOI: 10.1021/acs.orglett.3c00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
A novel regioselective annulation of propargylic alcohols with simple carbazoles for the construction of [3,2,1-jk]carbazole scaffolds is described to be the first example of intermolecular synthesis of [3,2,1-jk]carbazoles from simple carbazoles. In situ synthesis of propargyl alcohols from simple, cheap, and easily accessible ketones has also been developed during the one-pot synthesis of [3,2,1-jk]carbazoles.
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Affiliation(s)
- Meysam Azizzade
- School of Chemistry, College of Science, University of Tehran, Tehran 141556455, Iran
| | | | - Akram Sajadi
- School of Chemistry, College of Science, University of Tehran, Tehran 141556455, Iran
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3
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Yu L, Xu R, Yao YY, Lu Y, Liu FY, Tan W, Shi F. Organocatalytic ( Z/ E)-Selective Synthesis of 3-Vinylnaphthofurans via a Formal (3 + 2) Cycloaddition. J Org Chem 2023; 88:3474-3486. [PMID: 36877987 DOI: 10.1021/acs.joc.2c02641] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
A formal (3 + 2) cycloaddition of 1,4-enediones with 2-naphthols was established under the catalysis of trifluoromethanesulfonic acid as an organocatalyst, leading to the efficient synthesis of structurally diverse 3-vinylnaphthofurans with high yields and excellent (Z/E)-selectivities (up to 96% yield, all >20:1 Z/E). This formal (3 + 2) cycloaddition involved a cascade reaction process, and the intramolecular hydrogen bond in the structure of 3-vinylnaphthofurans should play an important role in controlling the (Z/E)-selectivity of the newly formed vinyl group. Moreover, this class of 3-vinylnaphthofurans was discovered to have an axial chirality. This work provides an organocatalytic approach for constructing multi-substituted vinylnaphthofurans via a cascade reaction with excellent control of the (Z/E)-selectivity, which will serve as a useful strategy for synthesizing vinylnaphthofurans via in situ construction of the furan core and formation of the vinyl group.
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Affiliation(s)
- Lei Yu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Ran Xu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yan-Yi Yao
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yu Lu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Fei-Yang Liu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Wei Tan
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Feng Shi
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China.,School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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4
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Hu Z, Ma P, Ma N, Wang J. FeCl 3-Catalyzed Synthesis of Tanshinlactone Analogues from 1 H-Indene-1,2,3-triones and Alkynes. J Org Chem 2022; 87:10982-10989. [PMID: 35914246 DOI: 10.1021/acs.joc.2c01254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tanshinlactone has been found in several natural products and biologically active compounds. Herein, a new FeCl3-catalyzed strategy using 1H-indene-1,2,3-triones and alkynes as starting materials is reported to obtain various tanshinlactone derivatives. This protocol has the advantages of involving low cost, environmentally benign catalysts, simple reaction conditions, and a broad range of substrates.
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Affiliation(s)
- Zhenzhu Hu
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Peng Ma
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Ning Ma
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China
| | - Jianhui Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, P. R. China
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5
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Zhao WY, Yang CF, Han LJ, Zhou B, Li AJ, Liu LL, Zhang ZW, Wang ZY, Wu WJ, Zhang JW. Design, synthesis, and insecticidal activities of propargyloxy-naphthalene-sulfonamide derivatives. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:361-370. [PMID: 34042537 DOI: 10.1080/10286020.2021.1925254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
In our previous studies, a kind of novel benzenesulfonamides was found to be a candidate insecticidal compounds. It was shown that propargyloxy and sulfonamide groups are pharmacodynamic groups. One hundred and twenty-six (126) naphthalenesulfonamides derivatives with propargyloxy functionality were designed and synthesized, and their insecticidal activities were determined. Some of them showed outstanding activity, with LC50 values as low as 0.202 mg ml-1, much lower than that of the positive control celangulin V (23.9 mg ml-1). In addition, the structure-activity relationships were discussed, and molecular docking was used to verify the binding mode of the compound and the target receptor.
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Affiliation(s)
- Wang-Yu Zhao
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Chao-Fu Yang
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
- Department of Pharmacy, Changzhi Medical College, Changzhi 046000, China
| | - Li-Juan Han
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Bo Zhou
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Ai-Juan Li
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Lu-Lu Liu
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Zi-Wei Zhang
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Zi-Yu Wang
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Wen-Jun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
| | - Ji-Wen Zhang
- College of Chemistry & Pharmacy, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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6
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Abstract
Carbon–carbon bond formation by [3,3]-sigmatropic rearrangement is a fundamental and powerful method that has been used to build organic molecules for a long time. Initially, Claisen and Cope rearrangements proceeded at high temperatures with limited scopes. By introducing catalytic systems, highly functionalized substrates have become accessible for forming complex structures under mild conditions, and asymmetric synthesis can be achieved by using chiral catalytic systems. This review describes recent breakthroughs in catalytic [3,3]-sigmatropic rearrangements since 2016. Detailed reaction mechanisms are discussed to enable an understanding of the reactivity and selectivity of the reactions. Finally, this review is inspires the development of new cascade reaction pathways employing catalytic [3,3]-sigmatropic rearrangement as related methodologies for the synthesis of complex functional molecules.
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7
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Wang C, Xing Z, Ge Q, Yu Y, Wang M, Duan WL. Site-Selective Desaturation of C(sp3)-C(sp3) Bond via Photoinduced Ruthenium Catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00332e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ruthenium(II) photocatalysis has emerged as one of the most advanced tools amongst modern synthetic chemistry whereas its catalytic mode is generally limited to single electron transfer and triplet energy transfer...
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8
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Priyanka C, Subbarao M, Punna N. Palladium-catalyzed ortho-vinylation of β-naphthols with α-trifluoromethyl allyl carbonates: one-pot access to naphtho[2,1- b]furans. Org Biomol Chem 2021; 19:8241-8245. [PMID: 34505862 DOI: 10.1039/d1ob01429c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly regio- and stereoselective palladium-catalyzed ortho-vinylation of β-naphthols (2) has been reported using easily accessible CF3-allyl carbonates (1). The regioselective nucleophilic γ-attack of the CF3-π-allyl-Pd-intermediate is the key to furnish (Z)-CF3-vinylnaphthols (3) in good yields. Furthermore, we achieved a one-pot synthesis of CF3-naphtho[2,1-b]furans (4) through an uninterrupted ortho-vinylation/oxidative radical cyclization reaction sequence.
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Affiliation(s)
- Chiliveru Priyanka
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Muppidi Subbarao
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Nagender Punna
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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9
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Chiummiento L, D’Orsi R, Funicello M, Lupattelli P. Last Decade of Unconventional Methodologies for the Synthesis of Substituted Benzofurans. Molecules 2020; 25:E2327. [PMID: 32429435 PMCID: PMC7288127 DOI: 10.3390/molecules25102327] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
This review describes the progress of the last decade on the synthesis of substituted benzofurans, which are useful scaffolds for the synthesis of numerous natural products and pharmaceuticals. In particular, new intramolecular and intermolecular C-C and/or C-O bond-forming processes, with transition-metal catalysis or metal-free are summarized. (1) Introduction. (2) Ring generation via intramolecular cyclization. (2.1) C7a-O bond formation: (route a). (2.2) O-C2 bond formation: (route b). (2.3) C2-C3 bond formation: (route c). (2.4) C3-C3a bond formation: (route d). (3) Ring generation via intermolecular cyclization. (3.1) C7a-O and C3-C3a bond formation (route a + d). (3.2) O-C2 and C2-C3 bond formation: (route b + c). (3.3) O-C2 and C3-C3a bond formation: (route b + d). (4) Benzannulation. (5) Conclusion.
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Affiliation(s)
- Lucia Chiummiento
- Department of Science, Via dell’Ateneo Lucano, 10, 85100 Potenza, Italy; (R.D.); (M.F.); (P.L.)
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10
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Šimek M, Bártová K, Pohl R, Císařová I, Jahn U. Tandemreaktionen aus anionischer Oxy‐Cope‐Umlagerung und Oxygenierung als vielseitiger Zugang zu verschiedenartigen Gerüsten. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michal Šimek
- Institut für Organische Chemie und BiochemieTschechische Akademie der Wissenschaften Flemingovo náměstí 2 16610 Prag 6 Czech republic
| | - Kateřina Bártová
- Institut für Organische Chemie und BiochemieTschechische Akademie der Wissenschaften Flemingovo náměstí 2 16610 Prag 6 Czech republic
| | - Radek Pohl
- Institut für Organische Chemie und BiochemieTschechische Akademie der Wissenschaften Flemingovo náměstí 2 16610 Prag 6 Czech republic
| | - Ivana Císařová
- Institut für Anorganische ChemieNaturwissenschaftliche FakultätKarls-Universität Prag Hlavova 2030/8 12843 Prag 2 Czech republic
| | - Ullrich Jahn
- Institut für Organische Chemie und BiochemieTschechische Akademie der Wissenschaften Flemingovo náměstí 2 16610 Prag 6 Czech republic
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11
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Šimek M, Bártová K, Pohl R, Císařová I, Jahn U. Tandem Anionic oxy-Cope Rearrangement/Oxygenation Reactions as a Versatile Method for Approaching Diverse Scaffolds. Angew Chem Int Ed Engl 2020; 59:6160-6165. [PMID: 31994304 DOI: 10.1002/anie.201916188] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Indexed: 12/29/2022]
Abstract
Tandem anionic oxy-Cope rearrangement/radical oxygenation reactions provide δ,ϵ-unsaturated α-(aminoxy) carbonyl compounds, which serve as convenient precursors to diverse compound classes. Functionalized carbocycles are accessible by very rare all-carbon 5-endo-trig cyclizations, but also common 5-exo-trig radical cyclizations, based on the persistent radical effect. The tandem reactions can be further extended by highly diastereoselective allylation or reduction steps to give complex scaffolds.
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Affiliation(s)
- Michal Šimek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Kateřina Bártová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843, Prague 2, Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Prague 6, Czech Republic
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12
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Klychnikov MK, Pohl R, Císařová I, Jahn U. Application of the Brook Rearrangement in Tandem with Single Electron Transfer Oxidative and Radical Processes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mikhail K. Klychnikov
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo náměstí 2 16610 Prague 6 Czech Republic
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13
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Reddy RJ, Kumar JJ, Kumari AH, Krishna GR. Pd‐Catalyzed Annulation of β‐Iodovinyl Sulfones with 2‐Halophenols: A General Route for the Synthesis of 3‐Sulfonyl Benzofuran Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901550] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
| | - Jangam Jagadesh Kumar
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
| | - Arram Haritha Kumari
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
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14
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Fang JD, Yan XB, Lin WJ, Zhao YC, Liu XY. Diphenyl-Diselenide-Mediated Domino Claisen-Type Rearrangement/Cyclization of Propargylic Aryl Ethers: Synthesis of Naphthofuran-2-carboxaldehyde Derivatives. Org Lett 2019; 21:7635-7638. [PMID: 31507178 DOI: 10.1021/acs.orglett.9b02942] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A diphenyl-diselenide-mediated Claisen-type rearrangement/cyclization of propargylic aryl ethers under metal-free conditions is developed, affording various naphthofuran-2-carboxaldehydes in moderate to excellent yield. The broad substrate scope and excellent functional group compatibility suggest that it can be a straightforward and powerful method to access naphthofuran-2-carboxaldehydes in a highly regioselective manner. Moreover, this reaction can be scaled up to the gram scale.
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Affiliation(s)
- Jun-Dan Fang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
| | - Xiao-Biao Yan
- School of Pharmacy , Anhui Medical University , 81 Meishan Road , Hefei 230032 , China
| | - Wu-Jie Lin
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
| | - Yi-Chuan Zhao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
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