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Zhang S, Zhu HT, Xi JJ, Wang SB, Chang X, Shen CP, Feng Y, Zhang ZY, Zhao MT, Zhang LK, Li M, Jin X, Zhou AX, Zhou NN. Brønsted Acid-Catalyzed Intramolecular Tandem Double Cyclization of γ-Hydroxy Acetylenic Ketones with Alkynes into Naphtho[1,2- b]furan-3-ones. J Org Chem 2024; 89:1633-1647. [PMID: 38235569 DOI: 10.1021/acs.joc.3c02300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
A metal-free and atom-economic route for the synthesis of naphtho[1,2-b]furan-3-ones has been realized via p-TsOH·H2O-catalyzed intramolecular tandem double cyclization of γ-hydroxy acetylenic ketones with alkynes in formic acid. The benzene-linked furanonyl-ynes are the key intermediates obtained by the scission/recombination of C-O double bonds. Further, the structural modifications of the representative product were implemented by reduction, demethylation, substitution, and [5 + 2]-cycloaddition.
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Affiliation(s)
- Sen Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Hai-Tao Zhu
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jia-Jun Xi
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - San-Bao Wang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Xin Chang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Cheng-Ping Shen
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Yue Feng
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Zhao-Yang Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Meng-Ting Zhao
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Li-Kun Zhang
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Mi Li
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Xiaojie Jin
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - An-Xi Zhou
- key Laboratory of Applied Organic Chemistry, Higher Institutions of Jiangxi Province, Shangrao Normal University, Shangrao 334000, China
| | - Ni-Ni Zhou
- College of Chemistry and Chemical Engineering, Shannxi Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
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Smith PJ, Jiang Y, Tong Z, Pickford HD, Christensen KE, Nugent J, Anderson EA. Synthesis of Polysubstituted Fused Pyrroles by Gold-Catalyzed Cycloisomerization/1,2-Sulfonyl Migration of Yndiamides. Org Lett 2021; 23:6547-6552. [PMID: 34369785 DOI: 10.1021/acs.orglett.1c02360] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Yndiamides (bis-N-substituted alkynes) are valuable precursors to azacycles. Here we report a cycloisomerization/1,2-sulfonyl migration of alkynyl-yndiamides to form tetrahydropyrrolopyrroles, unprecedented heterocyclic scaffolds that are relevant to medicinal chemistry. This functional group tolerant transformation can be achieved using Au(I) catalysis that proceeds at ambient temperature, and a thermally promoted process. The utility of the products is demonstrated by a range of reactions to functionalize the fused pyrrole core.
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Affiliation(s)
- Philip J Smith
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
| | - Zixuan Tong
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Helena D Pickford
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | | | - Jeremy Nugent
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Edward A Anderson
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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Ledovskaya MS, Polynski MV, Ananikov VP. One-Pot and Two-Chamber Methodologies for Using Acetylene Surrogates in the Synthesis of Pyridazines and Their D-Labeled Derivatives. Chem Asian J 2021; 16:2286-2297. [PMID: 34152671 DOI: 10.1002/asia.202100562] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/18/2021] [Indexed: 01/03/2023]
Abstract
Acetylene surrogates are efficient tools in modern organic chemistry with largely unexplored potential in the construction of heterocyclic cores. Two novel synthetic paths to 3,6-disubstituted pyridazines were proposed using readily available acetylene surrogates through flexible C2 unit installation procedures in a common reaction space mode (one-pot) and distributed reaction space mode (two-chamber): (1) an interaction of 1,2,4,5-tetrazine and its acceptor-functionalized derivatives with a CaC2 -H2 O mixture performed in a two-chamber reactor led to the corresponding pyridazines in quantitative yields; (2) [4+2] cycloaddition of 1,2,4,5-tetrazines to benzyl vinyl ether can be considered a universal synthetic path to a wide range of pyridazines. Replacing water with D2 O and vinyl ether with its trideuterated analog in the developed procedures, a range of 4,5-dideuteropyridazines of 95-99% deuteration degree was synthesized for the first time. Quantum chemical modeling allowed to quantify the substituent effect in both synthetic pathways.
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Affiliation(s)
- Maria S Ledovskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Saint Petersburg, 198504, Russia
| | - Mikhail V Polynski
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Saint Petersburg, 198504, Russia.,N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia
| | - Valentine P Ananikov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Saint Petersburg, 198504, Russia.,N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia
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Kuang J, Zhou T, You T, Chen J, Su C, Xia Y. Facile access to 1,3-diketones by gold(i)-catalyzed regioselective hydration of ynones. Org Biomol Chem 2019; 17:3940-3944. [DOI: 10.1039/c9ob00494g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A regioselective hydration of ynones was developed via gold catalysis, providing a simple, mild, and efficient method for the synthesis of a variety of 1,3-diketone derivatives.
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Affiliation(s)
- Jinqiang Kuang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
| | - Tao Zhou
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Tingjie You
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Chenliang Su
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
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