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Huang WW, Cheng JT, Hsiao WT, Chiou WH. Stereodivergent Synthesis of Alkaloid (±)-223A and (±)-6- epi-223A via Rh-Catalyzed Hydroformylation Double Cyclization. J Org Chem 2024; 89:5091-5097. [PMID: 38456271 PMCID: PMC11002921 DOI: 10.1021/acs.joc.3c02366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024]
Abstract
A stereodivergent approach toward total syntheses of Dendrobatid alkaloids 223A and 6-epi-223A is described. The approach features a concise construction of an indolizidine skeleton by Rh-catalyzed domino hydroformylation double cyclization and sequential stereocontrolled transformations such as reductive alkylation or anti-selective α-alkylation of the 5-oxoindolizidine. These stereoselective reactions afford the desired stereochemistry in the targets.
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Affiliation(s)
- Wen-Wei Huang
- Department of Chemistry, National Chung-Hsing University, Taichung 402202, Taiwan, R.O.C.
| | | | | | - Wen-Hua Chiou
- Department of Chemistry, National Chung-Hsing University, Taichung 402202, Taiwan, R.O.C.
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2
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Wahab A, Cheng G, Su H, Yang L, Gao Z, Yu B. Furan ring opening reaction for the synthesis of 2,5-dicarbonyl-3-ene-phosphates. Org Biomol Chem 2023; 21:7219-7223. [PMID: 37642497 DOI: 10.1039/d3ob00933e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Furan ring opening reactions are essential in organic synthesis, enabling the incorporation of diverse functional groups and the construction of complex molecular structures. A highly efficient and practical method for synthesizing 2,5-dicarbonyl-3-ene-phosphates from readily available biomass furan and dialkyl phosphonates is reported. The reaction, catalyzed by FeCl3, demonstrated wide substrate scope and high synthetic efficiency. Gram-scale synthesis was achieved, and a one-pot reaction provided a quick access route to the desired compounds. Additionally, a successful Diels-Alder reaction highlighted the versatility of the methodology.
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Affiliation(s)
- Abdul Wahab
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Guanghai Cheng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Hang Su
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Lihua Yang
- Oil & Gas Technology Research Institute, Changqing Oilfield Branch Company, Petrochina, Xi'an, 710018, China.
- National Engineering Laboratory for Low-permeability Oil & Gas Exploration and Development, Xi'an, 710018, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
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3
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Liang L, Guo LD, Tong R. Achmatowicz Rearrangement-Inspired Development of Green Chemistry, Organic Methodology, and Total Synthesis of Natural Products. Acc Chem Res 2022; 55:2326-2340. [PMID: 35916456 DOI: 10.1021/acs.accounts.2c00358] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The six-membered heterocycles containing oxygen and nitrogen (tetrahydropyrans, pyrans, piperidines) are among the most common heterocyclic structures ubiquitously present in bioactive molecules such as carbohydrates, small-molecule drugs, and natural products. Chemical synthesis of fully functionalized pyrans and piperidines is a research theme of practical importance and scientific significance and, thus, has attracted continuous interest from synthetic chemists. Among the numerous synthetic approaches, Achmatowicz rearrangement (AchR) represents a general and unique strategy that uses biomass-derived furfuryl alcohols as the renewable starting material to obtain fully functionalized six-membered oxygen/nitrogen heterocycles, which provides golden opportunities for organic chemists to address various synthetic challenges.This Account summarizes our 10 years of work on exploiting AchR to address some challenges in organic synthesis ranging from green chemistry and organic methodology to the total synthesis of natural products. We enabled the sustainable and safe use of AchR in a small (academia) or large (industrial) scale by developing two generations of green approaches for AchR (oxone-halide and Fenton-halide), which largely eliminate the use of the most popular, but more toxic and expansive, NBS and m-CPBA. This triggered our intensive interest in developing new green chemistry for important organic reactions, in particular, halogenation/oxidation reactions involving reactive halogenating species with the aim of eliminating the use of commonly used toxic halogen agents such as elemental bromine, chlorine gas, and various N-haloamide reagents (NBS, NCS, and NIS). We successfully employed oxone-halide and Fenton-halide as green alternatives to several mechanistically related organic reactions including arene/alkene halogenation, oxidation or oxidative rearrangement of indoles, oxidation of alcohols/thioacetals, and oxidative halogenation of aldoximes for the in situ generation of nitrile oxide. These green reactions are expected to have a solid impact on the future of organic synthesis in academia and industries.We expanded the synthetic utility of AchR by exploring several new transformations of AchR products and developed a cascade reductive ring expansion, reductive deoxygenation/Heck-Matsuda arylation, palladium-catalyzed C-arylation, and regiodivergent [3 + 2] cycloaddition with 1,3-dicarbonyls. These methodologies offer a new avenue to fully functionalized six-membered heterocycles.The synthetic utility of AchR was demonstrated in our total synthesis of 28 natural products with a pyran/piperidine moiety. The AchR-based strategy endows the total synthesis with scalability, sustainability, and flexibility. The green and scalable approaches developed in our lab for AchR allow us to easily obtain decagrams of synthetically valuable pyrans and/or piperidines with low risk and low cost from biomass-derived furfuryl alcohol/aldehyde.
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4
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Wahab A, Gao Z, Gou J, Yu B. The construction of phosphonate triazolyl by copper(II)-catalyzed furan dearomatized [3 + 2] cycloaddition. Org Biomol Chem 2022; 20:6319-6323. [PMID: 35856323 DOI: 10.1039/d2ob01060g] [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
Triazole phosphonates are valuable structural motifs in chemical biology and the subject of growing recent interest. A novel methodology to synthesize triazolyl phosphonates starting from furfuryl phosphonate alcohols and organo-azides was developed. This method involved an intermolecular copper-catalyzed dearomatized [3 + 2] cycloaddition/furan ring-opening cascade reaction. A strategy involving a three-component reaction was realized for quick access to triazole phosphonates.
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Affiliation(s)
- Abdul Wahab
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi'an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China. .,SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517, China
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5
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Xing Q, Hao Z, Hou J, Li G, Gao Z, Gou J, Li C, Yu B. Manganese-Catalyzed Achmatowicz Rearrangement Using Green Oxidant H 2O 2. J Org Chem 2021; 86:9563-9586. [PMID: 34181426 DOI: 10.1021/acs.joc.1c00858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Oxidation reactions have been extensively studied in the context of the transformations of biomass-derived furans. However, in contrast to the vast literature on utilizing the stoichiometric oxidants, such as m-CPBA and NBS, catalytic methods for the oxidative furan-recyclizations remain scarcely investigated. Given this, we report a means of manganese-catalyzed oxidations of furan with low loading, achieving the Achmatowicz rearrangement in the presence of hydrogen peroxide as an environmentally benign oxidant under mild conditions with wide functional group compatibility.
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Affiliation(s)
- Qingzhao Xing
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Zhe Hao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Hou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Gaoqiang Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi'an 710062, China
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.,SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517, China
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6
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Xu X, Zhong Y, Xing Q, Gao Z, Gou J, Yu B. Ytterbium-Catalyzed Intramolecular [3 + 2] Cycloaddition based on Furan Dearomatization to Construct Fused Triazoles. Org Lett 2020; 22:5176-5181. [DOI: 10.1021/acs.orglett.0c01780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaoming Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Ying Zhong
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Qingzhao Xing
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi’an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Science, Shaanxi Normal University, Xi’an 710062, China
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7
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Zhong Y, Xu X, Xing Q, Yang S, Gou J, Gao Z, Yu B. Furfuryl Cation Induced Three-Component Reaction to Synthesize Triazole-Substituted Thioesters. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000299] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ying Zhong
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education, School of Chemistry & Chemical Engineering; Shaanxi Normal University; 710062 Xi'an China
| | - Xiaoming Xu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education, School of Chemistry & Chemical Engineering; Shaanxi Normal University; 710062 Xi'an China
| | - Qingzhao Xing
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education, School of Chemistry & Chemical Engineering; Shaanxi Normal University; 710062 Xi'an China
| | - Song Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology; Changzhou University; 213164 Changzhou China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Normal University; 710062 Xi'an China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education, School of Chemistry & Chemical Engineering; Shaanxi Normal University; 710062 Xi'an China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education, School of Chemistry & Chemical Engineering; Shaanxi Normal University; 710062 Xi'an China
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8
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9
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Guo J, Xu X, Xing Q, Gao Z, Gou J, Yu B. Furfuryl Cation Induced Cascade Formal [3 + 2] Cycloaddition/Double Ring-Opening/Chlorination: An Approach to Chlorine-Containing Complex Triazoles. Org Lett 2018; 20:7410-7414. [PMID: 30412412 DOI: 10.1021/acs.orglett.8b03121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A TiCl4-promoted cascade formal [3 + 2] cycloaddition/double ring-opening/chlorination of 2-furylcyclobutanols with alkyl or aryl azides is described. This highly efficient transformation involves the formation/cleavage of several C-N, C-Cl, C-C, and C-O bonds in a single operation. It enables the quick construction of trisubstituted 1,2,3-triazoles with an ( E)-enone moiety and a 3-chloropropyl unit. The chlorinated products are readily transformed into other structurally diverse analogues.
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Affiliation(s)
- Jiawei Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical , Shaanxi Normal University , Xi'an 710062 , China
| | - Xiaoming Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical , Shaanxi Normal University , Xi'an 710062 , China
| | - Qingzhao Xing
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical , Shaanxi Normal University , Xi'an 710062 , China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical , Shaanxi Normal University , Xi'an 710062 , China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices , Shaanxi Normal University , Xi'an 710062 , China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical , Shaanxi Normal University , Xi'an 710062 , China
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10
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Song W, Li M, Zheng N, Ullah K, Li J, Dong K, Zheng Y. Iridium-Catalyzed Highly Regioselective and Diastereoselective Allylic Etherification To Access cis-2,6-Disubstituted Dihydropyridinones. J Org Chem 2018; 83:12822-12830. [PMID: 30234304 DOI: 10.1021/acs.joc.8b01598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and diastereoselective method to access cis-2,6-disubstituted dihydropyridinones under mild conditions by an iridium-catalyzed allylic etherification is reported. cis-2,6-Disubstituted dihydropyridinones are important precursors for the de novo synthesis of the corresponding piperidine alkaloids and iminosugars. This strategy features a broad substrate scope, high yields, and excellent regio- and diastereoselectivities. A π-allyl-Ir intermediate is involved in the mechanism. The strong A1,3-strain from the tosyl group may also favor the formation of cis-products in this transformation.
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Affiliation(s)
- Wangze Song
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Ming Li
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Nan Zheng
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China.,School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Karim Ullah
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Junhao Li
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Kun Dong
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Yubin Zheng
- School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , P. R. China
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11
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Flexible access to 2,3,5,6-tetrasubstituted dehydropiperidines by Ni- or Co-catalyzed site-selective cross-coupling using Vilsmeier-Haack-derived α-chloro-β-formyltetrahydropyridines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Yang H, Guo J, Gao Z, Gou J, Yu B. A Combination of Furfuryl Cation Induced Three-Component Reactions and Photocatalyst-Free Photoisomerization To Construct Complex Triazoles. Org Lett 2018; 20:4893-4897. [DOI: 10.1021/acs.orglett.8b02035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hengtuo Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical, Shaanxi Normal University, Xi’an 710062, China
| | - Jiawei Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical, Shaanxi Normal University, Xi’an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical, Shaanxi Normal University, Xi’an 710062, China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi’an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical, Shaanxi Normal University, Xi’an 710062, China
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13
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Song WZ, Zheng YB, Li M, Zheng N, Ullah K, Li JH, Dong K. Vanadium-Catalyzed Achmatowicz and Aza-Achmatowicz Rearrangement Reactions. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Zhang R, Li Y, Ali A, Hao J, Bi X, Fu J. Rh(II)-Catalyzed Tandem Cyclization of Aliphatic N
-Sulfonyl-1,2,3-triazoles and Alcohols for the Synthesis of 6-Alkoxy Piperidin-3-ones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ran Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
| | - Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
| | - Arshad Ali
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
| | - Jiamin Hao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 People's Repulic of China
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15
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Concise and efficient synthesis of E-stereoisomers of exo-cyclic carbohydrate enones. Aldol condensation of dihydrolevoglucosenone with five-membered aromatic aldehydes Part 1. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Li Y, Zhang R, Ali A, Zhang J, Bi X, Fu J. Synthesis of 6-Substituted Piperidin-3-ones via Rh(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles with Electron-Rich Aromatic Nucleophiles. Org Lett 2017; 19:3087-3090. [PMID: 28541705 DOI: 10.1021/acs.orglett.7b01180] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A highly diastereoselective rhodium(II)-catalyzed transannulation of aldehyde-tethered N-sulfonyl triazoles with electron-rich aromatic nucleophiles is reported for the first time to afford functionalized 6-substituted piperidin-3-ones. The reaction has a broad substrate scope including both aliphatic and aromatic N-sulfonyl-1,2,3-triazoles together with various aromatic nucleophiles. The addition of a catalytic amount of Lewis acid has proven to be crucial for the yield improvement. By employing this methodology, hardly accessible piperidin-3-ones bearing quaternary carbons could be obtained.
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Affiliation(s)
- Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Ran Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Arshad Ali
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Jing Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
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17
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Miao M, Xu H, Luo Y, Jin M, Chen Z, Xu J, Ren H. A modular approach to highly functionalized 3-sulfonylfurans via conjugate addition of 3-cyclopropylideneprop-2-en-1-ones with sodium sulfinates and sequential 5-endo-trig iodocyclization. Org Chem Front 2017. [DOI: 10.1039/c7qo00362e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Conjugate addition of 3-cyclopropylideneprop-2-en-1-ones with sodium sulfinates and sequential 5-endo-trig iodocyclization to afford valuable 3-sulfonylfurans.
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Affiliation(s)
- Maozhong Miao
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Huaping Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yi Luo
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Mengchao Jin
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Zhengkai Chen
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jianfeng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Hongjun Ren
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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18
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Ghosh AK, Brindisi M. Achmatowicz Reaction and its Application in the Syntheses of Bioactive Molecules. RSC Adv 2016; 6:111564-111598. [PMID: 28944049 PMCID: PMC5603243 DOI: 10.1039/c6ra22611f] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Substituted pyranones and tetrahydropyrans are structural subunits of many bioactive natural products. Considerable efforts are devoted toward the chemical synthesis of these natural products due to their therapeutic potential as well as low natural abundance. These embedded pyranones and tetrahydropyran structural motifs have been the subject of synthetic interest over the years. While there are methods available for the syntheses of these subunits, there are issues related to regio and stereochemical outcomes, as well as versatility and compatibility of reaction conditions and functional group tolerance. The Achmatowicz reaction, an oxidative ring enlargement of furyl alcohol, was developed in the 1970s. The reaction provides a unique entry to a variety of pyranone derivatives from functionalized furanyl alcohols. These pyranones provide convenient access to substituted tetrahydropyran derivatives. This review outlines general approaches to the synthesis of tetrahydropyrans, covering general mechanistic aspects of the Achmatowicz reaction or rearrangement with an overview of the reagents utilized for the Achmatowicz reaction. The review then focuses on the synthesis of functionalized tetrahydropyrans and pyranones and their applications in the synthesis of natural products and medicinal agents.
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Affiliation(s)
- Arun K. Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
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19
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Miao M, Luo Y, Li H, Xu X, Chen Z, Xu J, Ren H. Lewis Acid Catalyzed Regiospecific Cross-Dehydrative Coupling Reaction of 2-Furylcarbinols with β-Keto Amides or 4-Hydroxycoumarins: A Route to Furyl Enols. J Org Chem 2016; 81:5228-35. [DOI: 10.1021/acs.joc.6b00734] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Maozhong Miao
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Yi Luo
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Hongli Li
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Xin Xu
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Zhengkai Chen
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Jianfeng Xu
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Hongjun Ren
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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20
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Peng H, Li J, Wang F, Liu B, Yin B. Synthesis of Spiro-lactams and Polysubstituted Pyrroles via Ceric Ammonium Nitrate-Mediated Oxidative Cyclization of N-Furan-2-ylmethyl-β-Enaminones. J Org Chem 2016; 81:4939-46. [DOI: 10.1021/acs.joc.5b02919] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hui Peng
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Jiuyi Li
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Furong Wang
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Bo Liu
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, 510006, PR China
| | - Biaolin Yin
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
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21
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Li Z, Tong R. Catalytic Environmentally Friendly Protocol for Achmatowicz Rearrangement. J Org Chem 2016; 81:4847-55. [DOI: 10.1021/acs.joc.6b00469] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhilong Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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22
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Roscales S, Csákÿ AG. Transition-metal free reactions of boronic acids: cascade addition – ring-opening of furans towards functionalized γ-ketoaldehydes. Chem Commun (Camb) 2016; 52:3018-21. [DOI: 10.1039/c5cc08809g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the first ring-opening of furfuryl alcohols with boronic acids to afford functionalized γ-ketoaldehydes.
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Affiliation(s)
- S. Roscales
- Instituto Pluridisciplinar
- Universidad Complutense
- Campus de Excelencia Internacional Moncloa
- 28040-Madrid
- Spain
| | - A. G. Csákÿ
- Instituto Pluridisciplinar
- Universidad Complutense
- Campus de Excelencia Internacional Moncloa
- 28040-Madrid
- Spain
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23
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Yang H, Gou J, Guo J, Duan D, Zhao YM, Yu B, Gao Z. Bifunctional Furfuryl Cations Strategy: Three-Component Synthesis of Enamidyl Triazoles. Chemistry 2015; 22:129-33. [DOI: 10.1002/chem.201504330] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 11/08/2022]
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24
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van der Pijl F, van Delft FL, Rutjes FPJT. The Aza-Achmatowicz Reaction: Facile Entry into Functionalized Piperidinones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500321] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Abstract
This review of simple indolizidine and quinolizidine alkaloids (i.e., those in which the parent bicyclic systems are in general not embedded in polycyclic arrays) is an update of the previous coverage in Volume 55 of this series (2001). The present survey covers the literature from mid-1999 to the end of 2013; and in addition to aspects of the isolation, characterization, and biological activity of the alkaloids, much emphasis is placed on their total synthesis. A brief introduction to the topic is followed by an overview of relevant alkaloids from fungal and microbial sources, among them slaframine, cyclizidine, Steptomyces metabolites, and the pantocins. The important iminosugar alkaloids lentiginosine, steviamine, swainsonine, castanospermine, and related hydroxyindolizidines are dealt with in the subsequent section. The fourth and fifth sections cover metabolites from terrestrial plants. Pertinent plant alkaloids bearing alkyl, functionalized alkyl or alkenyl substituents include dendroprimine, anibamine, simple alkaloids belonging to the genera Prosopis, Elaeocarpus, Lycopodium, and Poranthera, and bicyclic alkaloids of the lupin family. Plant alkaloids bearing aryl or heteroaryl substituents include ipalbidine and analogs, secophenanthroindolizidine and secophenanthroquinolizidine alkaloids (among them septicine, julandine, and analogs), ficuseptine, lasubines, and other simple quinolizidines of the Lythraceae, the simple furyl-substituted Nuphar alkaloids, and a mixed quinolizidine-quinazoline alkaloid. The penultimate section of the review deals with the sizable group of simple indolizidine and quinolizidine alkaloids isolated from, or detected in, ants, mites, and terrestrial amphibians, and includes an overview of the "dietary hypothesis" for the origin of the amphibian metabolites. The final section surveys relevant alkaloids from marine sources, and includes clathryimines and analogs, stellettamides, the clavepictines and pictamine, and bis(quinolizidine) alkaloids.
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26
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Liu J, Zhang X, Peng H, Jiang H, Yin B. Copper Chloride-Catalyzed Aerobic Oxidative Annulation ofN-Furfuryl-β-Enaminones:Access to Polysubstituted Pyrroles and Indoles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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27
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Guaragna A, Dell’Isola A, D’Errico S, Palumbo G, D’Alonzo D. Beyond Achmatowicz reaction: DDQ-mediated chemo- and stereoconvergent domino-one pot cyclization/rearrangement of bis-thioenol ether-containing chiral building blocks. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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28
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Lee D, Shin I, Hwang Y, Lee K, Seo SY, Kim H. Concise and stereoselective synthesis of (±)-Hagen's gland lactone. RSC Adv 2014. [DOI: 10.1039/c4ra11763h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Guo J, Yu B, Wang YN, Duan D, Ren LL, Gao Z, Gou J. Conversion of 2-Furylcarbinols with Alkyl or Aryl Azides to Highly Functionalized 1,2,3-Triazoles via Cascade Formal [3 + 2] Cycloaddition/Ring-Opening. Org Lett 2014; 16:5088-91. [DOI: 10.1021/ol502437y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jiawei Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Ya-Nan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Dongyu Duan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Li-Li Ren
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
| | - Jing Gou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, and ‡School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China
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30
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Koh PF, Wang P, Huang JM, Loh TP. Biomass derived furfural-based facile synthesis of protected (2S)-phenyl-3-piperidone, a common intermediate for many drugs. Chem Commun (Camb) 2014; 50:8324-7. [DOI: 10.1039/c4cc02645d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The efficient conversion of rice straw into a key intermediate to access various drugs has been developed.
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Affiliation(s)
- P.-F. Koh
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- 50 Nanyang Avenue
- Singapore 639798, Singapore
| | - P. Wang
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- 50 Nanyang Avenue
- Singapore 639798, Singapore
| | - J.-M. Huang
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- 50 Nanyang Avenue
- Singapore 639798, Singapore
- School of Chemistry and Chemical Engineering
| | - T.-P. Loh
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- 50 Nanyang Avenue
- Singapore 639798, Singapore
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
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31
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Kuznetsov A, Makarov A, Rubtsov AE, Butin AV, Gevorgyan V. Brönsted acid-catalyzed one-pot synthesis of indoles from o-aminobenzyl alcohols and furans. J Org Chem 2013; 78:12144-53. [PMID: 24255969 PMCID: PMC3923594 DOI: 10.1021/jo402132p] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Brönsted acid-catalyzed one-pot synthesis of indoles from o-aminobenzyl alcohols and furans has been developed. This method operates via the in situ formation of aminobenzylfuran, followed by its recyclization into the indole core. The method proved to be efficient for substrates possessing different functional groups, including -OMe, -CO2Cy, and -Br. The resulting indoles can easily be transformed into diverse scaffolds, including 2,3- and 1,2-fused indoles, and indoles possessing an α,β-unsaturated ketone moiety at the C-2 position.
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Affiliation(s)
- Alexey Kuznetsov
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Anton Makarov
- Perm State University, 15 Bukireva Street, Perm, 614990, Russian Federation
| | | | - Alexander V. Butin
- Perm State University, 15 Bukireva Street, Perm, 614990, Russian Federation
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
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32
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Eftekhari-Sis B, Zirak M, Akbari A. Arylglyoxals in Synthesis of Heterocyclic Compounds. Chem Rev 2013; 113:2958-3043. [DOI: 10.1021/cr300176g] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bagher Eftekhari-Sis
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
| | - Maryam Zirak
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran,
Iran
| | - Ali Akbari
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
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33
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Yin B, Zeng G, Cai C, Ji F, Huang L, Li Z, Jiang H. Facile Synthesis of 3a,6a-Dihydro-furo[2,3-b]furans and Polysubstituted Furans Involving Dearomatization of Furan Ring via Electrocyclic Ring-Closure. Org Lett 2012; 14:616-9. [DOI: 10.1021/ol203232m] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Biaolin Yin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Guohui Zeng
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Congbi Cai
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Fanghua Ji
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Li Huang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Zhengrong Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
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34
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35
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El Kaïm L, Grimaud L, Wagschal S. Palladium catalyzed ring opening of furans as a route to α,β-unsaturated aldehydes. Chem Commun (Camb) 2011; 47:1887-9. [DOI: 10.1039/c0cc04164e] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Terada M. Chiral Phosphoric Acids as Versatile Catalysts for Enantioselective Carbon–Carbon Bond Forming Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20090268] [Citation(s) in RCA: 194] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Ghosh P, Judd WR, Ribelin T, Aubé J. Asymmetric total synthesis of alkaloids 223A and 6-epi-223A. Org Lett 2010; 11:4140-2. [PMID: 19739687 DOI: 10.1021/ol901645j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Concise and asymmetric total synthesis of the title compounds are described. The key ring system was constructed using an intramolecular Schmidt reaction on a norbornenone derivative, which was subsequently subjected to ring-opening metathesis followed by reduction. An unusual isomerization of the C-6 ethyl group afforded the desired stereochemistry of the natural product. The synthesis is readily adaptable to analogue production.
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Affiliation(s)
- Partha Ghosh
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott Hall, Room 4070, University of Kansas, Lawrence, Kansas 66045-7582, USA
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38
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Cheng K, Kelly AR, Kohn RA, Dweck JF, Walsh PJ. One-pot catalytic asymmetric synthesis of pyranones. Org Lett 2009; 11:2703-6. [PMID: 19456165 DOI: 10.1021/ol900905r] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Enantioenriched pyranones are important intermediates in the synthesis of natural products and the generation of compound libraries. A one-pot method for their synthesis is outlined. Catalytic asymmetric alkylation of 2-furfurals in the presence of catalytic (-)-MIB generates enantioenriched furyl zinc alkoxides. Addition of water/THF followed by NBS results in formation of pyranones with ee's >90% and yields between 46-77%.
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Affiliation(s)
- Kevin Cheng
- P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
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39
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Kiren S, Hong X, Leverett CA, Padwa A. A facile synthesis of 5-alkoxypyrrol-2(5H)-ones using a modified aza-Achmatowicz oxidation. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Kiren S, Hong X, Leverett CA, Padwa A. Synthesis of 2,4-disubstituted pyrroles by rearrangements of 2-furanyl carbamates. Org Lett 2009; 11:1233-5. [PMID: 19231853 DOI: 10.1021/ol900059e] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
2,4-Disubstituted pyrroles were synthesized by an oxidative rearrangement of a furanyl carbamate followed by sequential reaction of the resulting 5-methoxypyrrol-2(5H)-one with different alkyl lithiates. The final step of the procedure involves heating the ring opened 1-methoxy-5-oxopentylcarbamate with a primary amine.
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Affiliation(s)
- Sezgin Kiren
- Department of Chemistry, Emory University, Atlanta, Georgia, 30322, USA
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41
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Davis FA, Song M, Qiu H, Chai J. Total synthesis of (5R,6R,8R,9S)-(−)-5,9Z-indolizidine 221T using sulfinimine-derived N-sulfinyl β-amino ketones. Org Biomol Chem 2009; 7:5067-73. [DOI: 10.1039/b915796d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Wilson MS, Padwa A. A Stereoselective Approach to the Azaspiro[5.5]undecane Ring System Using a Conjugate Addition/Dipolar Cycloaddition Cascade: Application to the Total Synthesis of (±)-2,7,8-epi-Perhydrohistrionicotoxin. J Org Chem 2008; 73:9601-9. [DOI: 10.1021/jo801295e] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Albert Padwa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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43
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Boto A, Hernández D, Hernández R. Efficient Conversion of Carbohydrates into 1-C-Alditols: Application to the Synthesis of Chiral γ-Substituted Butenolides and Bicyclic Alkaloid Analogues. J Org Chem 2008; 73:5287-97. [DOI: 10.1021/jo800478a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Rosendo Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
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44
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Nelson A, Garraffo HM, Spande TF, Daly JW, Stevenson PJ. Facile synthesis of two diastereomeric indolizidines corresponding to the postulated structure of alkaloid 5,9E-259B from a Bufonid toad (Melanophryniscus). Beilstein J Org Chem 2008; 4:6. [PMID: 18208586 PMCID: PMC2244622 DOI: 10.1186/1860-5397-4-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 01/21/2008] [Indexed: 11/10/2022] Open
Abstract
A short synthesis of the postulated structure for indolizidine alkaloid 259B with the hydrogens at C5 and C9 entgegen has been achieved with complete control of stereochemistry at C5. Both diastereoisomers at C8 were obtained, but neither proved to be the natural product. The comparison of the mass and FTIR spectral properties of the synthetic compounds to those of the natural material strongly suggest that the gross structure is correct and that the difference may be a branch in the C5 alkyl side-chain. The GC-retention times of the two synthetic compounds were markedly longer than that of the natural 5,9E-259B.
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Affiliation(s)
- Angela Nelson
- School of Chemistry and Chemical Engineering, Queens University, Belfast, BT9 5AG, Northern Ireland.
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45
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Coombs TC, Lee MD, Wong H, Armstrong M, Cheng B, Chen W, Moretto AF, Liebeskind LS. Practical, scalable, high-throughput approaches to eta3-pyranyl and eta3-pyridinyl organometallic enantiomeric scaffolds using the Achmatowicz reaction. J Org Chem 2008; 73:882-8. [PMID: 18171075 DOI: 10.1021/jo702006z] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unified strategy for the high-throughput synthesis of multigram quantities of the eta(3)-oxopyranyl- and eta(3)-oxopyridinylmolybdenum complexes TpMo(CO)(2)(eta(3)-oxopyranyl) and TpMo(CO)(2)(eta(3)-oxopyridinyl) is described (Tp = hydridotrispyrazolylborato). The strategy uses the oxa- and aza-Achmatowicz reaction for the preparation of these organometallic enantiomeric scaffolds, in both racemic and high enantiopurity versions.
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Affiliation(s)
- Thomas C Coombs
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
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46
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Cariou CAM, Kariuki BM, Snaith JS. Stereoselective synthesis of 2,4,5-trisubstituted piperidines by carbonyl ene and Prins cyclisations. Org Biomol Chem 2008; 6:3337-48. [DOI: 10.1039/b808644c] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Screening of chiral phosphines as catalysts for the enantioselective [3+2] annulations of N-tosylimines with allenic esters. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.09.022] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Regioselectivity, scope, and limitations of the addition of organolithium and allylmagnesium reagents to 1H-pyridine-2-thiones; access to 3,4-, 3,6-, and 5,6-dihydropyridine-2-thiones. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.09.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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49
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Walker SM, Williams JT, Russell AG, Kariuki BM, Snaith JS. Stereoselective synthesis of 3,4-disubstituted and 3,4,5-trisubstituted piperidines by Lewis acid-catalysed ene cyclisation of 4-aza-1,7-dienes. Org Biomol Chem 2007; 5:2925-31. [PMID: 17728858 DOI: 10.1039/b708139a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermal or Lewis acid-catalysed ene cyclisation of a variety of 4-aza-1,7-dienes afforded 3,4-disubstituted or 3,4,5-trisubstituted piperidines. Activation of the enophile with a single ester facilitated a thermal ene cyclisation, although the reaction was not amenable to Lewis acid catalysis. With other activating groups on the enophile it was found that Lewis acid catalysis was facile, although there was a fine balance between the desired ene cyclisation and the competing hetero-Diels-Alder reaction, with the product distribution being influenced by the activating group on the enophile, the nature of the ene component, and the Lewis acid used. Activation of the enophile with an oxazolidinone function facilitated Lewis acid-catalysed cyclisation to afford mixtures of ene and hetero-Diels-Alder products. Activating the enophile with two ester groups gave a substrate that underwent a very facile ene cyclisation catalysed by MeAlCl(2) to give the corresponding trans 3,4-disubstituted piperidines with diastereomeric ratios of >200 : 1.
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Affiliation(s)
- Stephen M Walker
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
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Leverett CA, Cassidy MP, Padwa A. Application of the aza-Achmatowicz oxidative rearrangement for the stereoselective synthesis of the Cassia and Prosopis alkaloid family. J Org Chem 2006; 71:8591-601. [PMID: 17064038 PMCID: PMC2475587 DOI: 10.1021/jo0616714] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
cis-2-Methyl-6-substituted piperidin-3-ol alkaloids of the Cassia and Prosopis species are readily prepared by a combination of an aza-Achmatowicz oxidative rearrangement and dihydropyridone reduction followed by a stereoselective allylsilane addition to a N-sulfonyliminium ion. The stereochemical outcome of the reduction reaction can be attributed to steric hindrance between the pseudoaxially oriented 2,6-substituents and the equatorially approaching hydride reagent which explains the exclusive formation of the cis-alcohol by axial approach of the hydride. The unsaturation present in the (E)-methyl-pent-3-enoate side chain was removed by catalytic reduction, and the remaining ester group was converted to the corresponding Weinreb's amide. This key intermediate was utilized for the synthesis of azimic acid, deoxocassine, cassine, and spicigerine. The facile preparation of (S)-N-tosylamidofuran 16 and its conversion to the chiral Achmatowicz oxidation product 18 provide a formal chiral synthesis of these alkaloids.
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Affiliation(s)
| | | | - Albert Padwa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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