1
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Hong K, Liu M, Qian L, Bao M, Chen G, Jiang X, Huang J, Xu X. Catalytic [4+2]- and [4+4]-cycloaddition using furan-fused cyclobutanone as a privileged C4 synthon. Nat Commun 2024; 15:5407. [PMID: 38926359 PMCID: PMC11208666 DOI: 10.1038/s41467-024-49664-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Cycloaddition reactions play a pivotal role in synthetic chemistry for the direct assembly of cyclic architectures. However, hurdles remain for extending the C4 synthon to construct diverse heterocycles via programmable [4+n]-cycloaddition. Here we report an atom-economic and modular intermolecular cycloaddition using furan-fused cyclobutanones (FCBs) as a versatile C4 synthon. In contrast to the well-documented cycloaddition of benzocyclobutenones, this is a complementary version using FCB as a C4 reagent. It involves a C-C bond activation and cycloaddition sequence, including a Rh-catalyzed enantioselective [4 + 2]-cycloaddition with imines and an Au-catalyzed diastereoselective [4 + 4]-cycloaddition with anthranils. The obtained furan-fused lactams, which are pivotal motifs that present in many natural products, bioactive molecules, and materials, are inaccessible or difficult to prepare by other methods. Preliminary antitumor activity study indicates that 6e and 6 f exhibit high anticancer potency against colon cancer cells (HCT-116, IC50 = 0.50 ± 0.05 μM) and esophageal squamous cell carcinoma cells (KYSE-520, IC50 = 0.89 ± 0.13 μM), respectively.
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Affiliation(s)
- Kemiao Hong
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Mengting Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Lixin Qian
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Ming Bao
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Gang Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Xinyu Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Jingjing Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Xinfang Xu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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2
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Liu Y, Shen X, Zhu P, Hu JM, Wang X, Ge S. Gold-Catalyzed Cascade Reaction of Yne-Enones with Iminooxindoles, Access to 3,2'-Pyrrolidinyl-Spirooxindole Derivatives. Org Lett 2024. [PMID: 38804575 DOI: 10.1021/acs.orglett.4c01395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Herein, a gold-catalyzed cascade reaction of yne-enones with iminooxindoles has been developed through a cascade cycloisomerization/(3 + 2) annulation process. This approach provides a straightforward and efficient route for the synthesis of functionalized 3,2'-pyrrolidinyl-spirooxindoles in high reactivity and broad substrate scope with excellent cis-selectivity. Moreover, the subsequent functionalization of furan units allows for the diverse synthesis of spirooxindole derivatives, which have demonstrated good antitumoral activity.
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Affiliation(s)
- Yijun Liu
- College of Science, Yunnan Agricultural University, Kunming 650201, China
- Key Laboratory of Puerh Tea Science, Ministry of Education, College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xiaojiang Shen
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Pengyan Zhu
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Jiang-Miao Hu
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xuanjun Wang
- Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Shulin Ge
- College of Science, Yunnan Agricultural University, Kunming 650201, China
- Key Laboratory of Puerh Tea Science, Ministry of Education, College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
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3
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Yao T, She JE, Li T, Qin X. Highly Regio- and Diastereoselective Synthesis of 6,7-Dihydro-4 H-furo[3,4- c]pyran Derivatives through Pd-Catalyzed Formal (3 + 3) Allylic Cycloaddition of 2-Butene-1,4-diols with 2-(1-Alkynyl)-2-alken-1-ones. Org Lett 2024; 26:2018-2022. [PMID: 38422043 DOI: 10.1021/acs.orglett.4c00089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A highly efficient synthesis of 7-vinyl-6,7-dihydro-4H-furo[3,4-c]pyran derivatives from 2-butene-1,4-diols and 2-(1-alkynyl)-2-alken-1-ones has been achieved with high regio- and diastereoselectivity (dr > 20:1) by Pd-catalyzed tandem heterocyclization/cross-coupling. The π-allyl palladium species Int II generated from 2-butene-1,4-diol by direct cleavage of the C-OH bond is the key to the success in this formal (3 + 3) cycloaddition reaction.
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Affiliation(s)
- Tuanli Yao
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jun-E She
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tao Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), 518 Ziyue RD, Minhang District, Shanghai 200241, China
| | - Xiangyang Qin
- Department of Chemistry, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
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4
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Heinicke JW. o-Hydroxyarylphosphanes: Strategies for Syntheses of Configurationally Stable, Electronically and Sterically Tunable Ambiphiles with Multiple Applications. Chemistry 2024; 30:e202302740. [PMID: 37905970 DOI: 10.1002/chem.202302740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/02/2023]
Abstract
o-Hydroxyarylphosphanes are fascinating compounds by their multiple-reactivity features, attributed to the ambident hard and soft Lewis- and also Brønstedt acid-base properties, wide tuning opportunities via backbone substituents with ±mesomeric and inductive, at P and in o-position to P and O also steric effects, and in addition, the configurational stability at three-valent phosphorus. Air sensitivity may be overcome by reversible protection with BH3 , but the easy oxidation to P(V)-compounds may also be used. Since the first reports on the title compounds ca. 50 years ago the multiple reactivity has led to versatile applications. This includes various P-E-O and P=C-O heterocycles, a multitude of O-substituted derivatives including acyl derivatives for traceless Staudinger couplings of biomolecules with labels or functional substituents, phosphane-phosphite ligands, which like the o-phosphanylphenols itself form a range of transition metal complexes and catalysts. Also main group metal complexes and (bi)arylphosphonium-organocatalysts are derived. Within this review the various strategies for the access of the starting materials are illuminated, including few hints to selected applications.
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Affiliation(s)
- Joachim W Heinicke
- Emeritus Inorganic Chemistry, Institute of Biochemistry, University Greifswald, 17487, Greifswald, Germany
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5
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Liu RH, Chai GL, Wang X, Deng HY, Chang J. Chiral-Boron-Complex-Catalyzed Asymmetric [3 + 2] Cycloaddition of β-Trifluoromethyl α,β-Unsaturated Ketones with N,N'-Cyclic Azomethine Imines. J Org Chem 2023; 88:16566-16580. [PMID: 37967281 DOI: 10.1021/acs.joc.3c02106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
The (R)-3,3'-(3,5-(CF3)2-C6H3)2-BINOL-boron-complex-catalyzed asymmetric 1,3-dipolar cycloaddition of β-trifluoromethyl α,β-unsaturated ketone with N,N'-cyclic azomethine imines was developed to afford N,N'-bicyclic pyrazolidine derivatives bearing a stereogenic carbon center containing CF3 motifs in high yields with excellent diastereo- and enantioselectivities (up to >20:1 dr, and >99% ee). This catalytic system features mild reaction conditions, high efficiency, and a broad substrate scope.
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Affiliation(s)
- Rui-Hao Liu
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guo-Li Chai
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xiao Wang
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hong-Yu Deng
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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6
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Zheng J, Yang L, Dai X, Chen L, Tang L, Zhou Y, Li WDZ. Diastereodivergent Synthesis of Pentacyclic Spiroindolines via a Magnesium(II)-Catalyzed Cascade Reaction of N,N'-Cyclic Azomethine Imines with Indolyl-Substituted Isocyanides. Org Lett 2023. [PMID: 37196242 DOI: 10.1021/acs.orglett.3c01085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Magnesium(II)-catalyzed cascade reactions of N,N'-cyclic azomethine imines with indolyl-substituted isocyanides are reported herein. The method exhibited a high functional group tolerance and broad substrate scope. A series of anti-pentacyclic spiroindolines containing N,N'-fused heterocycle skeletons were obtained in up to 82% yield with 8.5:1 dr under mild reaction conditions. Intriguingly, a sequential HOAc-mediated protonation results in a diastereoenriched epimerization, which gives rise to the syn-pentacyclic spiroindolines as the sole isomers.
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Affiliation(s)
- Jianfeng Zheng
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Lin Yang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Dai
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Lvli Chen
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Luhao Tang
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wei-Dong Z Li
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
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7
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Pellissier H. TADDOL-derived phosphorus ligands in asymmetric catalysis. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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8
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Chai GL, Yao EZ, Liu RH, Chang J. Chiral-Boron-Complex-Catalyzed Asymmetric [3 + 2] Cycloaddition of 2'-Hydroxychalcones with N, N'-Cyclic Azomethine Imines. Org Lett 2022; 24:6449-6454. [PMID: 36040361 DOI: 10.1021/acs.orglett.2c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the (R)-3,3'-I2-BINOL-boron-complex-catalyzed asymmetric 1,3-dipolar cycloaddition of 2'-hydroxychalcones with N,N'-cyclic azomethine imines, providing the corresponding N,N'-bicyclic pyrazolidine derivatives with three contiguous tertiary stereocenters in high yields with excellent diastereo- and enantioselectivities (up to >99:1 diastereomeric ratio and >99% enantiomeric excess). This catalytic system exhibits advantages of mild reaction conditions, high efficiency, and broad substrate scopes.
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Affiliation(s)
- Guo-Li Chai
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - En-Ze Yao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - Rui-Hao Liu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - Junbiao Chang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
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9
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Zhou Y, Zhou H, Xu J. N-Heterocyclic Carbene-Catalyzed Stereoselective [3 + 2] Cycloaddition of N, N'-Cyclic Azomethine Imines with Aryl Acetaldehydes. J Org Chem 2022; 87:10476-10484. [PMID: 35861147 DOI: 10.1021/acs.joc.2c01064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly stereoselective [3 + 2] cycloaddition reaction of N,N'-cyclic azomethine imines with aryl acetaldehydes enabled by a chiral N-heterocyclic carbene catalyst is accomplished, giving efficient access to a plethora of enantioenriched N,N'-bicyclic pyrazolidinones featuring aromatic substituents at the C2 position. The current strategy can be directly conducted on a gram scale, and the product could be further reduced to bicyclic pyrazolidine without loss of enantiopurity.
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Affiliation(s)
- Yipeng Zhou
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Hongwei Zhou
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P.R. China
| | - Jianfeng Xu
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
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10
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Lin B, Yang T, Zhang D, Zhou Y, Wu L, Qiu J, Chen G, Che C, Zhang X. Gold‐Catalyzed Desymmetric Lactonization of Alkynylmalonic Acids Enabled by Chiral Bifunctional P,N ligands. Angew Chem Int Ed Engl 2022; 61:e202201739. [DOI: 10.1002/anie.202201739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Bijin Lin
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Tilong Yang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Dequan Zhang
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
| | - Yang Zhou
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
| | - Liangliang Wu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Jingfei Qiu
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
| | - Gen‐Qiang Chen
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
- Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology Shenzhen 518055 China
| | - Chi‐Ming Che
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Xumu Zhang
- Department of Chemistry the Grubbs Institute Medi-X Pingshan Southern University of Science and Technology Shenzhen 518055 China
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11
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Lin B, Yang T, Zhang D, Zhou Y, Wu L, Qiu J, Chen GQ, Che CM, Zhang X. Gold‐Catalyzed Desymmetric Lactonization of Alkynylmalonic Acids Enabled by Chiral Bifunctional P,N ligands. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijin Lin
- Southern University of Science and Technology Department of Chemistry 518000 Shenzhen CHINA
| | - Tilong Yang
- Hong Kong University of Science and Technology School of Science Department of Chemistry Hongkong CHINA
| | - Dequan Zhang
- Southern University of Science and Technology Department of Chemistry CHINA
| | - Yang Zhou
- Southern University of Science and Technology Department of Chemistry CHINA
| | - Liangliang Wu
- Hong Kong University: University of Hong Kong Department of Chemistry CHINA
| | - Jingfei Qiu
- Southern University of Science and Technology Department of Chemistry CHINA
| | - Gen-Qiang Chen
- Southern University of Science and Technology Department of Chemistry CHINA
| | - Chi-Ming Che
- The University of Hong Kong Department of Chemistry CHINA
| | - Xumu Zhang
- Southern University of Science and Technology Chemistry 1088 Xueyuan Avenue 518055 Shenzhen CHINA
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12
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Wang X, Lv R, Li X. Gold( i)-catalyzed diastereo- and enantioselective [4 + 3] cycloadditions: construction of functionalized furano-benzoxepins. Org Chem Front 2022. [DOI: 10.1039/d2qo01070d] [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
Highly diastereo- and enantioselective [4 + 3] cycloadditions of 2-(1-alkynyl)-2-alken-1-ones with o-QMs have been realized via a simple chiral gold catalysis, providing facile access to various functionalized furano-benzoxepins.
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Affiliation(s)
- Xunhua Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ruifeng Lv
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
- Suzhou Research Institute, Shandong University, Suzhou, Jiangsu 215123, China
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13
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Li L, Kail S, Weber SM, Hilt G. Indium‐katalysierte Transferhydrierung zur reduktiven Cyclisierung von 2‐Alkinylenonen zu trisubstituierten Furanen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luomo Li
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| | - Sascha Kail
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| | - Sebastian M. Weber
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| | - Gerhard Hilt
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
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14
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Li L, Kail S, Weber SM, Hilt G. Indium-Catalysed Transfer Hydrogenation for the Reductive Cyclisation of 2-Alkynyl Enones towards Trisubstituted Furans. Angew Chem Int Ed Engl 2021; 60:23661-23666. [PMID: 34476880 PMCID: PMC8597135 DOI: 10.1002/anie.202109266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/23/2021] [Indexed: 01/04/2023]
Abstract
Indium tribromide catalysed the transfer hydrogenation from dihydroaromatic compounds, such as the commercially available γ-terpinene, to enones, which resulted in the cyclisation to trisubstituted furan derivatives. The reaction was initiated by a Michael addition of a hydride nucleophile to the enone subunit followed by a Lewis-acid-assisted cyclisation and the formation of a furan-indium intermediate and a Wheland intermediate derived from the dihydroaromatic starting material. The product was formed by protonation from the Wheland complex and replaced the indium tribromide substituent. In addition, a site-specific deuterium labelling of the dihydroaromatic HD surrogates resulted in site specific labelling of the products and gave useful insights into the reaction mechanism by H-D scrambling.
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Affiliation(s)
- Luomo Li
- Institut für ChemieCarl von Ossietzky Universität OldenburgCarl-von-Ossietzky-Strasse 9–1126111OldenburgGermany
| | - Sascha Kail
- Institut für ChemieCarl von Ossietzky Universität OldenburgCarl-von-Ossietzky-Strasse 9–1126111OldenburgGermany
| | - Sebastian M. Weber
- Institut für ChemieCarl von Ossietzky Universität OldenburgCarl-von-Ossietzky-Strasse 9–1126111OldenburgGermany
| | - Gerhard Hilt
- Institut für ChemieCarl von Ossietzky Universität OldenburgCarl-von-Ossietzky-Strasse 9–1126111OldenburgGermany
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15
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Zuccarello G, Escofet I, Caniparoli U, Echavarren AM. New-Generation Ligand Design for the Gold-Catalyzed Asymmetric Activation of Alkynes. Chempluschem 2021; 86:1283-1296. [PMID: 34472729 PMCID: PMC8457203 DOI: 10.1002/cplu.202100232] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Indexed: 01/01/2023]
Abstract
Gold(I) catalysts are ideal for the activation of alkynes under very mild conditions. However, unlike allenes or alkenes, the triple bond of alkynes cannot be prochiral. In addition, the linear coordination displayed by gold(I) complexes places the chiral ligand far away from the substrate resulting in an inefficient transfer of chiral information. This poses a significant challenge for the achievement of high enantiocontrol in gold(I)-catalyzed reactions of alkynes. Although considerable progress on enantioselective gold(I)-catalyzed transformations has recently been achieved, the asymmetric activation of non-prochiral alkyne-containing small molecules still represents a great challenge. Herein we summarize recent advances in intra- and intermolecular enantioselective gold(I)-catalyzed reactions involving alkynes, discussing new chiral ligand designs that lie at the basis of these developments. We also focus on the mode of action of these catalysts, their possible limitations towards a next-generation of more efficient ligand designs. Finally, square planar chiral gold(III) complexes, which offer an alternative to chiral gold(I) complexes, are also discussed.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Ulysse Caniparoli
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
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16
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Xiao JA, Cheng XL, Peng H, Liang JS, Luo XY, Su W. Diastereoselectivity-Switchable Gold-Catalyzed Formal [3+2]-Cycloadditions of N-2,2,2-Trifluoroethylisatin Ketimines with Yne-Enones. Chem Asian J 2021; 16:2435-2438. [PMID: 34337866 DOI: 10.1002/asia.202100591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/09/2021] [Indexed: 11/10/2022]
Abstract
The unexpected gold-catalyzed formal [3+2]-cycloaddition of N-2,2,2-trifluoroethylisatin ketimines with 2-(1-Alkynyl)-2-alken-1-ones is reported. Both diastereomers of the corresponding cycloadducts were formed in moderate to excellent yields with excellent diastereoselectivities by switching the catalytic system from mono-gold to gold/silver bimetallic catalytic system. The practicality of this protocol is demonstrated by scale-up reaction and the transformations of the cycloadduct.
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Affiliation(s)
- Jun-An Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
| | - Xiu-Liang Cheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
| | - Hai Peng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
| | - Jin-Shao Liang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
| | - Xiao-Yan Luo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, 530001, Nanning, Guangxi, P. R. China
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17
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Sikervar V, Sonawane R, Mandadapu R, Dehade AS, Shete SA, Montgomery M. Lewis Acid Mediated [3+2] and [3+3] Annulations of an Azomethine Imine with Donor–Acceptor Cyclopropanes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1503-8068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractTwo different Lewis acids were used for developing [3+2] and [3+3] regioselective cycloaddition reactions of an azomethine imine with activated cyclopropanes. Scandium(III) triflate catalyzes a [3+2] cycloaddition reaction of the azomethine imine with cyclopropanes to form tetrahydropyrazolone derivatives and tricyclic tetrahydrofuran derivatives in moderate yields. Complementary to this, a novel [3+3] cycloaddition reaction of the azomethine imine with activated cyclopropanes was developed by using EtAlCl2 as a Lewis acid to form hexahydropyridazinone derivatives in high regioselectivity.
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Affiliation(s)
| | | | - Raghuramaiah Mandadapu
- Syngenta Biosciences Pvt. Ltd. Santa Monica Works
- Department of Chemistry, Mangalore University
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18
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Zhou L, Liu L. Highly enantioselective tandem cycloisomerization/Diels-Alder reaction of 2-(1-alkynyl)-2-alken-1-ones and enals: dual catalysis with platinum and amines. Chem Commun (Camb) 2021; 57:5690-5693. [PMID: 33982035 DOI: 10.1039/d1cc02080c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein, we disclosed a highly efficient strategy of enantioselective synthesis of 2,3-furan-fused carbocycles bearing three-contiguous stereocenters. This transformation is catalyzed by dual catalysis of PtCl4/chiral amines via tandem dehydrogenative annulation/Diels-Alder reaction of 2-(1-alkynyl)-2-alken-1-ones and enals. The in situ generation of the furan-based ortho-quinodimethane intermediates and the iminium activation of enals are crucial to this transformation.
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Affiliation(s)
- Liejin Zhou
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road Shanghai, 200241, P. R. China. and Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321004, P. R. China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road Shanghai, 200241, P. R. China. and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, P. R. China
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19
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Xiao J, Peng H, Liang J, Luo X, Cheng X, Su W. Gold‐Catalyzed Tandem Cycloisomerization/Ring Expansion of Alkynyl Spiro‐epoxyoxindoles: Access to Furo[2,3‐c]quinolinone Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun‐An Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
| | - Hai Peng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
| | - Jin‐Shao Liang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
| | - Xiao‐Yan Luo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
| | - Xiu‐Liang Cheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics Nanning Normal University Nanning, Guangxi 530001 P. R. China
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20
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Synthesis of pyrazolotetrazepin-7-ones from 1,3,5-triazinanes with N,N′-cyclic azomethine imines via a formal (5 + 2) pathway. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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21
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Jiang JJ, Wong MK. Recent Advances in the Development of Chiral Gold Complexes for Catalytic Asymmetric Catalysis. Chem Asian J 2021; 16:364-377. [PMID: 33386691 DOI: 10.1002/asia.202001375] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/29/2020] [Indexed: 12/12/2022]
Abstract
Asymmetric gold catalysis has been rapidly developed in the past ten years. Breakthroughs have been made by rational design and meticulous selection of chiral ligands. This review summarizes newly developed gold-catalyzed enantioselective organic transformations and recent progress in ligand design (since 2016), organized according to different types of chiral ligands, including bisphosphine ligands, monophosphine ligands, phosphite-derived ligands, and N-heterocyclic carbene ligands for asymmetric gold(I) catalysis as well as heterocyclic carbene ligands and oxazoline ligands for asymmetric gold(III) catalysis.
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Affiliation(s)
- Jia-Jun Jiang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Man-Kin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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22
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Chen R, Liu Q, Wang K, Qi Y, Zhou Y, Zhang A, Meng T, Liu L. [5+2] Cyclization of N,N′‐Cyclic Azomethine Imines with 1,3,5‐Triazines: An Efficient Protocol for the Synthesis of Tetrazepine Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Rongxiang Chen
- School of Pharmacy Xinxiang University 453000 Xinxiang P. R. of China
| | - Qingling Liu
- School of Pharmacy Xinxiang University 453000 Xinxiang P. R. of China
| | - Kai‐Kai Wang
- School of Pharmacy Xinxiang University 453000 Xinxiang P. R. of China
| | - Yonghua Qi
- School of Pharmacy Xinxiang University 453000 Xinxiang P. R. of China
| | - Yong Zhou
- School of International Education Xinxiang University 453000 Xinxiang P. R. of China
| | - An‐an Zhang
- College of Chemistry and Chemical Engineering Shangqiu Normal University 476000 Shangqiu Henan P. R. China
| | - Tuanjie Meng
- College of Chemistry and Chemical Engineering Shangqiu Normal University 476000 Shangqiu Henan P. R. China
| | - Lantao Liu
- College of Chemistry and Chemical Engineering Shangqiu Normal University 476000 Shangqiu Henan P. R. China
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23
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Li Z, Kumagai N, Shibasaki M. Catalytic Asymmetric 1,3-Dipolar Cycloaddition of α,β-Unsaturated Amide and Azomethine Imine. Chem Pharm Bull (Tokyo) 2021; 68:552-554. [PMID: 32475860 DOI: 10.1248/cpb.c20-00130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
α,β-Unsaturated amides were incorporated as viable dipolarophiles in a catalytic asymmetric 1,3-dipolar cycloaddition of azomethine imines. The use of a 7-azaindoline auxiliary was essential to acquire sufficient reactivity with excellent diastereoselectivity, likely due to the chelating activation of the amide by the In(III)/bishydroxamic acid complex. Although the enantioselectivity remains unsatisfactory, this work is an important step toward the development of an asymmetric catalysis utilizing stable and low-reactive substrates.
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Affiliation(s)
- Zhao Li
- Institute of Microbial Chemistry
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24
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Deepthi A, Thomas NV, Sruthi SL. An overview of the reactions involving azomethine imines over half a decade. NEW J CHEM 2021. [DOI: 10.1039/d1nj01090e] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Azomethine imines constitute a versatile class of 1,3-dipoles which was used extensively for biologically relevant N-heterocycle synthesis – a five-year recap.
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Affiliation(s)
- Ani Deepthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - Noble V. Thomas
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - S. L. Sruthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
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25
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Peng H, Zhang Y, Deng G, Deng H. Silver( i)-catalyzed tandem reaction of enynones and 4-alkynyl isoxazoles: regioselective synthesis of highly functionalized 4 H-furan[3,4- c]pyrroles. Org Chem Front 2021. [DOI: 10.1039/d1qo00510c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This work reports a silver(i)-catalyzed tandem reaction of enynones with 4-alkynyl isoxazoles.
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Affiliation(s)
- Haiyun Peng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Yangyi Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Guisheng Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Hongmei Deng
- Key Laboratory of Water Safety and Protection in Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
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26
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Nejrotti S, Prandi C. Gold Catalysis and Furans: A Powerful Match for Synthetic Connections. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1705996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AbstractThis review summarizes the advances made on the synthesis and functionalization of furans via gold catalysis during the period between 2016 and 2020. A separate section is dedicated to the tandem gold-catalyzed synthesis and functionalization of furans.1 Introduction2 Gold-Catalyzed Synthesis of Furans2.1 Cycloisomerizations of Alkynyl and Cumulenyl Alcohols2.2 Cycloisomerizations of Alkynyl and Allenyl Ketones2.3 Reactions with External Oxidants2.4 Miscellaneous3 Gold-Catalyzed Functionalization of Furans3.1 Cycloadditions3.2 Furan Ring Decorations3.3 Reactions Involving Furan Ring Opening4 Gold-Catalyzed Tandem Synthesis and Functionalization of Furans4.1 Cycloisomerizations Followed by Gold-Catalyzed Cycloaddition4.2 Cycloisomerizations to a Gold 1,3- or 1,4-Dipole and Intermolecular Annulation4.3 Cycloisomerizations to a Gold Carbene and Intermolecular Trapping5 Conclusion
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27
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Qian D, Zhang J. Yne-Enones Enable Diversity-Oriented Catalytic Cascade Reactions: A Rapid Assembly of Complexity. Acc Chem Res 2020; 53:2358-2371. [PMID: 32998506 DOI: 10.1021/acs.accounts.0c00466] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A small-molecule collection with structural diversity and complexity is a prerequisite to using either drug candidates or chemical probes for drug discovery and chemical-biology investigations, respectively. Over the past 12 years, we have engaged in developing efficient diversity-oriented cascade strategies for the synthesis of topologically diverse skeletons incorporating biologically relevant structural motifs such as O- and N-heterocycles, fused polycycles, and multifunctionalized allenes. In particular, we have highlighted the use of simple, linear, and densely functionalized molecular platforms in these reactions.This account details our efforts in the design of novel molecular platforms for use in metal- and organo-catalyzed cascade reactions, which include 2-(1-alknyl)-2-alken-1-ones (yne-enones) for heterocyclization/cross-coupling cascades, heterocyclization/cycloaddition cascades, nucleophilic addition/cross-coupling cascades, nucleophilic addition/heterocyclization cascades, and so on. Moreover, this Account outlines corresponding mechanistic insights, computational information, and applications of these cascades in the construction of various highly substituted carbo- and heterocycles as well as highly functionalized acyclic compounds, e.g., allenes and dienes. In addition to yne-enones, we evolved the functional groups of our original yne-enones to provide a series of yne-enone variants, which resulted in products with complementary reactivities.The reactivity profile of the yne-enones is defined by the presence of an alkyne moiety and a conjugated enone unit and their mutual through-bond connectivity. Owing to the conceptually rapid development of carbophilic activation, we have identified a series of efficient catalytic systems consisting of metal catalysts, including Pd, Au, and Rh complexes, for diversity-oriented cascade catalysis, allowing various unprecedented reactions to be achieved through different-types of reaction intermediates, including all-carbon metal 1,n-dipoles, furan-based o-quinodimethanes (oQDMs), and allenyl-metal species. In addition to commonly known transition-metal catalytic activity, the Lewis acidity of these complexes is crucial to accomplish the corresponding transformation. In addition, highly enantioselective gold(I)-catalyzed heterocyclization/cycloaddition cascades of yne-enones and their variants were achieved by the application of bisphosphines (e.g., Cn-TunePhos), monophosphines, and our developed "Ming-Phos" as chiral ligands. Importantly, Ming-Phos ligands exhibited excellent performance in gold-catalyzed mechanistically distinct [3 + n]-cycloaddition reactions, in which the chiral sulfinamide moiety is possibly responsible for the interaction with the substrate to control enantioselectivity. Subsequently, we demonstrated that the easily prepared polymer-supported Ming-Phos ligand could be applied for heterogeneously gold(I)-catalyzed asymmetric cycloaddition with good stereocontrol. With metal-free catalysis, the divergent functionalization of yne-enones provides numerous synthetic outlets for structure diversification. For example, yne-enones are particularly attractive for use as precursors of various chiral and achiral heterocycles, such as pyrazoles, isoxazoles, pyrroles, and pyrans, etc.
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Affiliation(s)
- Deyun Qian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200433, China
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28
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Li Z, Peng J, He C, Xu J, Ren H. Silver(I)-Mediated Cascade Reaction of 2-(1-Alkynyl)-2-alken-1-ones with 2-Naphthols. Org Lett 2020; 22:5768-5772. [DOI: 10.1021/acs.orglett.0c01803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhanhuan Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Jingyi Peng
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Chonglong He
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Jianfeng Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Hongjun Ren
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
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29
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Ge S, Zhang Y, Tan Z, Li D, Dong S, Liu X, Feng X. Bimetallic Catalytic Tandem Reaction of Acyclic Enynones: Enantioselective Access to Tetrahydrobenzofuran Derivatives. Org Lett 2020; 22:3551-3556. [DOI: 10.1021/acs.orglett.0c00984] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shulin Ge
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yongyan Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zheng Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Dawei Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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30
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Sergeev PG, Nenajdenko VG. Recent advances in the chemistry of pyridazine — an important representative of six-membered nitrogen heterocycles. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4922] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Némethová I, Vargová D, Mudráková B, Filo J, Šebesta R. Reductive alkylation of imines via asymmetric Cu-catalyzed addition of organozirconium reagents. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121099] [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]
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32
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Bao X, Ren J, Yang Y, Ye X, Wang B, Wang H. 2-Activated 1,3-enynes in enantioselective synthesis. Org Biomol Chem 2020; 18:7977-7986. [PMID: 32996970 DOI: 10.1039/d0ob01614d] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The rapid enantioselective synthesis of valuable building blocks and pharmaceutically important compounds from easily accessible precursors is one of the major areas of focus in organic chemistry. In this context, 2-activated 1,3-enyne has emerged as a powerful synthon in recent years for the efficient synthesis of enantioenriched furans, allenes, 4-H-pyrans, and 4-isoxazolines, which are privileged scaffolds in bioactive compounds and natural products. This review will cover the history of the development of 2-activated 1,3-enyne in enantioselective synthesis along with the corresponding mechanisms, which may motivate further development in this area to forge more complex and valuable molecules.
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Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Jinhui Ren
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yang Yang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 112024, China
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
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33
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Fang QY, Jin HS, Wang RB, Zhao LM. DABCO-mediated [3+3] cycloaddition of azomethine imines with in situ generated nitrile oxides from hydroximoyl chlorides. Chem Commun (Camb) 2019; 55:10587-10590. [PMID: 31418760 DOI: 10.1039/c9cc05367k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel cross 1,3-dipolar cycloaddition between azomethine imines with in situ generated nitrile oxides has been developed. This is the first example of employing a reaction partner containing two heteroatoms in the [3+3] cycloaddition involving azomethine imines. This strategy not only provides structurally diverse N,O-heterocycles but also greatly enriches the chemistry of azomethine imines and nitrile oxides.
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Affiliation(s)
- Qing-Yun Fang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.
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34
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Qi J, Teng Q, Thirupathi N, Tung CH, Xu Z. Diastereoselective Synthesis of Polysubstituted Spirocyclopenta[c]furans by Gold-Catalyzed Cascade Reaction. Org Lett 2019; 21:692-695. [DOI: 10.1021/acs.orglett.8b03880] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jialin Qi
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Qi Teng
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Nuligonda Thirupathi
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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35
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Gold‐Catalyzed Enantioselective Intramolecular Annulation of Ene‐Yne‐Carbonyls via Benzopyrylium‐Type Intermediates. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Wang Y, Zhu L, Wang M, Xiong J, Chen N, Feng X, Xu Z, Jiang X. Catalytic Asymmetric [4 + 3] Annulation of C,N-Cyclic Azomethine Imines with Copper Allenylidenes. Org Lett 2018; 20:6506-6510. [DOI: 10.1021/acs.orglett.8b02828] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yanfang Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Liping Zhu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Mengran Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Jiale Xiong
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Nannan Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Xing Feng
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Zhaoqing Xu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
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37
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Wang Y, Zhang ZM, Liu F, He Y, Zhang J. Ming-Phos/Gold(I)-Catalyzed Diastereo- and Enantioselective Synthesis of Indolyl-Substituted Cyclopenta[c]furans. Org Lett 2018; 20:6403-6406. [DOI: 10.1021/acs.orglett.8b02701] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Feng Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Yinyan He
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University, 100 Haining Road, Shanghai 200080, China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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38
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Kong HH, Pan HL, Ding MW. Synthesis of 2-Tetrazolyl-Substituted 3-Acylpyrroles via a Sequential Ugi-Azide/Ag-Catalyzed Oxidative Cycloisomerization Reaction. J Org Chem 2018; 83:12921-12930. [DOI: 10.1021/acs.joc.8b01984] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Han-Han Kong
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Hong-Ling Pan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University, Wuhan 430079, People’s Republic of China
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