1
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Woldegiorgis AG, Mustafai A, Muhammad FY, Farooqi R, Tolesa LD, Aimun K. Stereoselective Synthesis of Axially Chiral Allenes and Styrenes via Chiral Phosphoric Acid Catalysis: An Overview. ACS OMEGA 2024; 9:33351-33364. [PMID: 39130561 PMCID: PMC11307311 DOI: 10.1021/acsomega.4c04206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 07/02/2024] [Accepted: 07/15/2024] [Indexed: 08/13/2024]
Abstract
Chiral allenes and styrenes are essential components in fields like medicinal chemistry, materials science, and organic synthesis. They serve a crucial role as chiral ligands and catalysts in asymmetric synthesis. Over the past decade, there has been a significant advancement in the development of practical methods utilizing organocatalytic strategies for the synthesis of chiral allenes and styrenes. It is noteworthy that despite extensive studies on the formation of allenes and styrenes, existing reviews on their construction confined to a specific organocatalysis, called chiral phosphoric acid catalysis, are less documented. This review aims to explore different conceptual approaches based on the electrophilic species involved in the reaction to produce stereoselective chiral allenes and styrenes, providing insights into recent advancements in the field. Emphasis is placed on works published since 2017, with detailed discussions on reaction mechanisms and examples from recent literature.
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Affiliation(s)
| | - Aleena Mustafai
- Bahauddin
Zakariya University, Institute of Chemical
Sciences, Multan 60800, Pakistan
| | - Faisal Yasin Muhammad
- Government
College University Faisalabad, Department of Chemistry, P.O. Box: 38000, Faisalabad 38040, Pakistan
| | - Rehmatullah Farooqi
- Bahauddin
Zakariya University, Institute of Chemical
Sciences, Multan 60800, Pakistan
| | - Leta Deressa Tolesa
- Adama
Science and Technology University, School of Applied Natural Science, P.O. Box: 1888, Adama 1000, Ethiopia
| | - Khadija Aimun
- Government
College University Faisalabad, Department of Chemistry, P.O. Box: 38000, Faisalabad 38040, Pakistan
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2
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Wang X, Shen B, Liu M, Wang Z, Liu C, Li P, Yu P, Li W. Organocatalytic Enantioselective 1,12-Addition of Alkynyl Biphenyl Quinone Methides Formed In Situ. Angew Chem Int Ed Engl 2024; 63:e202400143. [PMID: 38698663 DOI: 10.1002/anie.202400143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/23/2024] [Accepted: 05/02/2024] [Indexed: 05/05/2024]
Abstract
The chemistry of quinone methides formed in situ has been flourishing in recent years. In sharp contrast, the development and utilization of biphenyl quinone methides are rare. In this study, we achieved a remote stereocontrolled 1,12-conjugate addition of biphenyl quinone methides formed in situ for the first time. In the presence of a suitable chiral phosphoric acid, alkynyl biphenyl quinone methides were generated from α-[4-(4-hydroxyphenyl)phenyl]propargyl alcohols, followed by enantioselective 1,12-conjugate addition with indole-2-carboxylates. The strategy enabled the alcohols to serve as efficient allenylation reagents, providing practical access to a broad range of axially chiral allenes bearing a (1,1'-biphenyl)-4-ol unit, which were previously less accessible. Combined with control experiments, density functional theory calculations shed light on the reaction mechanism, indicating that enantioselectivity originates from the nucleophilic addition of alkynyl biphenyl quinone methides. Notably, not only the presence of biphenyl quinone methides as versatile intermediates was confirmed but also organocatalytic enantioselective 1,12-addition was established.
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Affiliation(s)
- Xing Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, Shandong, 266021, China
| | - Boming Shen
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology Guangming Advanced Research Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Meiwen Liu
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology Guangming Advanced Research Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Ziyang Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, Shandong, 266021, China
| | - Chang Liu
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology Guangming Advanced Research Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Pengfei Li
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology Guangming Advanced Research Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Peiyuan Yu
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology Guangming Advanced Research Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, Shandong, 266021, China
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3
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Zheng JY, Wang F, Zhang Y, Zheng Z, Wu JH, Ren X, Su Z, Chen W, Wang T. Novel Stereo-Induction Pattern in Pudovik Addition/Phospha-Brook Rearrangement Towards Chiral Trisubstituted Allenes. Angew Chem Int Ed Engl 2024; 63:e202403707. [PMID: 38520267 DOI: 10.1002/anie.202403707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 03/25/2024]
Abstract
Despite the significance of chiral allene skeletons in catalysis, organic synthesis and medicinal chemistry et al., there is a scarcity of reports on axially chiral allenyl phosphorus compounds. Here, we disclosed an efficient and straightforward cascade reaction between ethynyl ketones and phosphine oxides, resulting in a broad array of trisubstituted allenes incorporating a phosphorus moiety in high yields with excellent stereoselectivities facilitated by peptide-mimic phosphonium salt (PPS) catalysis, Additionally, comprehensive series of mechanistic experiments have been conducted to elucidate that this cascade reaction proceeds via an asymmetric Pudovik addition reaction followed by a subsequent phospha-Brook rearrangement that occurs concomitantly with kinetic resolution, representing a stereospecific rearrangement and protonation process facilitating central-to-axial chirality transfer in a cascade manner. We anticipate that our research will pave the way for a promising exploration of novel stereo-induction pattern in the Pudovik addition/phospha-Brook rearrangement cascade reaction.
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Affiliation(s)
- Jia-Yan Zheng
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Fan Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Yan Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zheng Zheng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100190, P. R. China
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4
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Liu G, Yang X, Gu P, Wang M, Zhang X, Dong XQ. Challenging Task of Ni-Catalyzed Highly Regio-/Enantioselective Semihydrogenation of Racemic Tetrasubstituted Allenes via a Kinetic Resolution Process. J Am Chem Soc 2024; 146:7419-7430. [PMID: 38447583 DOI: 10.1021/jacs.3c12597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The first earth-abundant transition metal Ni-catalyzed highly regio- and enantioselective semihydrogenation of racemic tetrasubstituted allenes via a kinetic resolution process as a challenging task was well established. This protocol furnishes expedient access to a diversity of structurally important enantioenriched tetrasubstituted allenes and chiral allylic molecules with high regio-, enantio-, and Z/E-selectivity. Remarkably, this semihydrogenation proceeded with one carbon-carbon double bond of allenes, which was regioselective complementary to the Rh-catalyzed asymmetric version. Deuterium labeling experiments and density functional theory (DFT) calculations were carried out to reveal the reasonable reaction mechanism and explain the regio-/stereoselectivity.
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Affiliation(s)
- Gang Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Xuanliang Yang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Pei Gu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, P. R. China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, P. R. China
| | - Xumu Zhang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518000, Guangdong, P. R. China
| | - Xiu-Qin Dong
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
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5
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Li Y, Huang J, Han Z, Huang H, Hong B, Sun J. Organocatalytic Enantioselective Nucleophilic Addition of Indole Imine 5-Methides. Org Lett 2024; 26:396-400. [PMID: 38165742 DOI: 10.1021/acs.orglett.3c04070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Despite the enormous developments in the asymmetric transformations of indole imine methides (IIMs), the remote asymmetric induction involving IIMs remains challenging due to the spatial interaction requirement between the substrate and catalyst. Herein we report the first catalytic asymmetric nucleophilic addition to indole imine 5-methide (5-IIM), the only topological isomer of IIMs whose asymmetric addition remains unknown. Despite the challenging remote stereocontrol, high efficiency and respectable enantioselectivity were achieved to provide access to a range of enantioenriched indole-containing triaryl alkanes.
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Affiliation(s)
- Yuxuan Li
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jing Huang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Biqiong Hong
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China
| | - Jianwei Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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6
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Wang J, Zheng WF, Zhang X, Qian H, Ma S. Stereoselectivity control in Rh-catalyzed β-OH elimination for chiral allene formation. Nat Commun 2023; 14:7399. [PMID: 37968338 PMCID: PMC10651921 DOI: 10.1038/s41467-023-42660-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 10/18/2023] [Indexed: 11/17/2023] Open
Abstract
Stereoselectivity control and understanding in the metal-catalyzed reactions are fundamental issues in catalysis. Here we report sterically controlled rhodium-catalyzed SN2'-type substitution reactions of optically active tertiary propargylic alcohols with arylmetallic species affording the non-readily available enantioenriched tetrasubstituted allenes via either exclusive syn- or anti-β-OH elimination, respectively, under two sets of different reaction parameters. Detailed mechanistic experiments and density functional theory (DFT) studies reveal that the exclusive anti-Rh(I)-OH elimination is dictated by the simultaneous aid of in situ generated boric acid and ambient water, which act as the shuttle in the hydroxy relay to facilitate the Rh(I)-OH elimination process via a unique ten-membered cyclic transition state (anti-TS2_u). By contrast, the syn-Rh(III)-OH elimination in C-H bond activation-based allenylation reaction is controlled by a four-membered cyclic transition state (syn-TS3) due to the steric surroundings around the Rh(III) center preventing the approach of the other assisting molecules. Under the guidance of these mechanistic understandings, a stereodivergent protocol to construct the enantiomer of optically active tetrasubstituted allenes from the same starting materials is successfully developed.
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Affiliation(s)
- Jie Wang
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, Shanghai, 200433, PR China
| | - Wei-Feng Zheng
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, Shanghai, 200433, PR China
| | - Xue Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, PR China.
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, Shanghai, 200433, PR China.
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, Shanghai, 200433, PR China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, PR China.
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7
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Wang YP, Zhang XP, Xie MS, Guo HM. Cobalt(II)-Catalyzed Enantioselective Propargyl Claisen Rearrangement: Access to Allenyl-Substituted Quaternary β-Ketoesters. Org Lett 2023; 25:7105-7109. [PMID: 37733040 DOI: 10.1021/acs.orglett.3c02496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Highly enantioselective propargyl Claisen rearrangement of O-propargyl β-ketoesters was achieved under 2.5 mol % of the chiral cobalt complex as the catalyst under mild reaction conditions. With Co(OTf)2 as the Lewis acid and C1-symmetric imidazoline-pyrroloimidazolone pyridine as the ligand, diverse chiral allenyl-substituted all-carbon quaternary β-ketoesters were obtained in good yields (up to 97% yield) and high enantioselectivities (up to 98% ee).
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Affiliation(s)
- Ya-Ping Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xing-Ping Zhang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ming-Sheng Xie
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hai-Ming Guo
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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8
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Rui K, Gu H, Woldegiorgis AG, Lin X. Organocatalytic Tandem Synthesis of Chiral Hexacyclic Bisindoles from Propargylic 3-Methyleneindoles with 2-Indolylmethanols. Org Lett 2023; 25:6654-6658. [PMID: 37671836 DOI: 10.1021/acs.orglett.3c02476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
A novel chiral phosphoric acid-catalyzed tandem regioselective 1,6-addition/double intramolecular nucleophilic addition annulation of the propargylic 3-methyleneindoles in situ generated from α-indolyl propargylic alcohols with 2-indolylmethanols has been developed. The methodology afforded the new chiral trifluoromethyl pentalenobisindoles bearing an all-carbon quaternary stereogenic center in generally good yields with excellent enantioselectivities.
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Affiliation(s)
- Kanghua Rui
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Haorui Gu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | | | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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9
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Liu S, Chan KL, Lin Z, Sun J. Asymmetric Synthesis of Remotely Chiral Naphthols and Naphthylamines via Naphthoquinone Methides. J Am Chem Soc 2023. [PMID: 37276009 DOI: 10.1021/jacs.3c03557] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Quinone methides are well-established intermediates in asymmetric synthesis. In contrast, their extended analogues with the carbonyl and methide units distributed across two different rings have not been exploited in asymmetric synthesis. Herein, we achieved the first asymmetric process involving such intermediates. Specifically, the use of suitable chiral phosphoric acids enabled in situ generation of 2-naphthoquinone 8-methides and the corresponding aza counterparts for mild one-pot asymmetric nucleophilic addition. These processes provided rapid access to a wide range of previously less accessible remotely chiral naphthols and naphthylamines with both high efficiency and excellent enantioselectivity. Control experiment and DFT calculations provided important insights into the reaction mechanism, which likely involves two phosphoric acid molecules in the enantiodetermining transition states. This work serves as a proof of concept for the exploitation of new types of extended quinone methides as versatile intermediates for asymmetric synthesis, thus providing a new platform for the efficient construction of remote benzylic stereogenic centers of aromatic compounds.
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Affiliation(s)
- Shuxuan Liu
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
- Shenzhen Research Institute, HKUST, No. 9 Yuexing 1st Rd, Shenzhen 518057, China
- Shenzhen Bay Laboratory, Shenzhen 518055, China
| | - Ka Lok Chan
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Zhenyang Lin
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Jianwei Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
- Shenzhen Research Institute, HKUST, No. 9 Yuexing 1st Rd, Shenzhen 518057, China
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10
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Remote stereocontrol in the (4 + 2) cycloadditions of 1,7-zwitterions: Asymmetric synthesis of multifunctionalized tetrahydroquinoline derivatives. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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11
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Wang G, Li L, Jiang Y, Zhao X, Ban X, Shao T, Yin Y, Jiang Z. Kinetic Resolution of Azaarylethynyl Tertiary Alcohols by Chiral Brønsted Acid Catalysed Phosphine-Mediated Deoxygenation. Angew Chem Int Ed Engl 2023; 62:e202214838. [PMID: 36412539 DOI: 10.1002/anie.202214838] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/07/2022] [Accepted: 11/22/2022] [Indexed: 11/23/2022]
Abstract
A chiral Brønsted acid catalysed phosphine-mediated deoxygenation protocol is reported. This metal-free method provides a precise kinetic resolution platform for azaarylethynyl tertiary alcohols, which are a broad category of biologically and synthetically important azaarene derivatives. In addition to providing an efficient method for the first asymmetric preparation of these tertiary alcohols, the strategy facilitates the construction of azaaryl-functionalized allenes with good to excellent enantioselectivities. The high selectivity factors (s up to 235), broad substrate scope, and ability to convert azaaryl compounds into both chiral tertiary alcohols and allenes robustly underscore the efficiency and promising utility of this method. The practicability is further validated by the successful synthesis of deuterated allenes with high ee values and substantial incorporation of deuterium using inexpensive D2 O as the deuterium source.
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Affiliation(s)
- Guanghui Wang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Lulu Li
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Yifeng Jiang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Xiaowei Zhao
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Xu Ban
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Tianju Shao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Yanli Yin
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.,College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, Henan, 450001, P. R. China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.,International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan, 475004, P. R. China
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12
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Zhang Y, Wu J, Ning L, Chen Q, Feng X, Liu X. Enantioselective synthesis of tetrasubstituted allenes via addition/arylation tandem reaction of 2-activated 1,3-enynes. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1443-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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13
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Nguyen TT. Organocatalytic synthesis of axially chiral tetrasubstituted allenes. Org Biomol Chem 2023; 21:252-272. [PMID: 36504200 DOI: 10.1039/d2ob01794f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Asymmetric organocatalysis is a growing method for the synthesis of axially chiral tetrasubstituted allenes, the most challenging one among allene syntheses. In this method, chiral organocatalysts such as phase-transfer catalysts, peptides, disulfonimides, and binaphthyl/bispiro phosphoric acids have displayed remote control of regio- and stereoselectivity. Highly functionalized enantiopure allenes including those with an adjacent tertiary or quaternary stereocenter have been efficiently prepared with high levels of regio-, diastereo-, and enantioselectivity using this method. Several mechanistic pathways, including electrophilic addition to cumulenolate or zwitterionic enolate intermediates, alkynylogous Mukaiyama aldol reaction, nucleophilic addition to quinone methides, and dearomative addition to imino esters, were proposed. The method is necessary for providing access to axially chiral tetrasubstituted allenes, which can be utilized for the preparation of novel ligands, natural products, and organic materials, particularly those having complex structures. This review covers the enantioselective organocatalytic synthesis of these tetrasubstituted allenes and the mechanistic insights into the formation of the chiral axis up to July 2022.
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Affiliation(s)
- Thien T Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam. .,Faculty of Pharmacy, College of Medicine and Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
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14
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da Silva EM, Vidal HDA, Januário MAP, Corrêa AG. Advances in the Asymmetric Synthesis of BINOL Derivatives. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010012. [PMID: 36615207 PMCID: PMC9821997 DOI: 10.3390/molecules28010012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
BINOL derivatives have shown relevant biological activities and are important chiral ligands and catalysts. Due to these properties, their asymmetric synthesis has attracted the interest of the scientific community. In this work, we present an overview of the most efficient methods to obtain chiral BINOLs, highlighting the use of metal complexes and organocatalysts as well as kinetic resolution. Further derivatizations of BINOLs are also discussed.
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15
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Zurro M, Ge L, Harutyunyan SR. Catalytic Access to 4-(sec-Alkyl)Anilines via 1,6-Conjugate Addition of Grignard Reagents to in Situ Generated aza- p-Quinone Methides. Org Lett 2022; 24:6686-6691. [PMID: 36053069 PMCID: PMC9486948 DOI: 10.1021/acs.orglett.2c02786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Indexed: 11/30/2022]
Abstract
The synthesis of aniline derivatives, common building blocks in many pharmaceuticals, agrochemicals, dyes or polymers, has been limited to reactions based on benzene-toluene-xylene derivatives (BTX) due to their ample availability. Despite the large number of existing methodologies, the synthesis of chiral 4-(sec-alkyl)anilines has not been accomplished so far. In this work, a tandem strategy based on the generation of a reactive aza-p-quinone methide (aza-p-QM) intermediate followed by Cu(I)-catalyzed addition of Grignard reagents has been developed.
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Affiliation(s)
- Mercedes Zurro
- Stratingh
Institute for Chemistry University of Groningen Institution Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Luo Ge
- Stratingh
Institute for Chemistry University of Groningen Institution Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Syuzanna R. Harutyunyan
- Stratingh
Institute for Chemistry University of Groningen Institution Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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16
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Liang PY, Shi S, Xu XX, Zhang HR, Che Z, Lu K, Yan CX, Jin NZ, Zhou PP. Organocatalytic synthesis of chiral allene catalyzed by chiral phosphoric acid via asymmetric 1,8-addition of indole imine methide: Mechanism and origin of enantioselectivity. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Qian C, Huang T, Sun J, Li P. Catalyst-Controlled Divergent Reactions of 2,3-Disubstituted Indoles with Propargylic Alcohols: Synthesis of 3 H-Benzo[ b]azepines and Axially Chiral Tetrasubstituted Allenes. Org Lett 2022; 24:6472-6476. [PMID: 36040372 DOI: 10.1021/acs.orglett.2c02642] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Catalyst-controlled divergent reactions of 2,3-disubstituted indoles with propargylic alcohols were developed for the first time. In the presence of TsOH or B(C6F5)3 as catalyst, 2,3-disubstituted indoles reacted smoothly with 3-alkynyl-3-hydroxyisoindolinones to afford 3H-benzo[b]azepines by selective C2(sp2)-C3(sp2) ring expansion of indoles. In contrast, decreasing the catalyst strength (e.g., with chiral phosphoric acid) interrupted the cascade reactions, affording axially chiral tetrasubstituted allenes bearing an adjacent chiral quaternary carbon stereocenter. Control experiments provided insights into the reaction mechanism.
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Affiliation(s)
- Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Tingting Huang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
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18
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Liao H, Miñoza S, Lee S, Rueping M. Aza‐
Ortho
‐Quinone Methides as Reactive Intermediates: Generation and Utility in Contemporary Asymmetric Synthesis. Chemistry 2022; 28:e202201112. [DOI: 10.1002/chem.202201112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Hsuan‐Hung Liao
- Department of Chemistry National Sun Yat-sen University (NSYSU) 70 Lien-hai Rd. Kaohsiung 80424 Taiwan, (R.O.C
| | - Shinje Miñoza
- Department of Chemistry National Sun Yat-sen University (NSYSU) 70 Lien-hai Rd. Kaohsiung 80424 Taiwan, (R.O.C
| | - Shao‐Chi Lee
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Magnus Rueping
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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19
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Wang Z, Cheng Y, Yue Z, Chen X, Li P, Li W. Organocatalytic Asymmetric 3‐Allenylation of Indoles via Remote Stereocontrolled 1,10‐Additions of Alkynyl Indole Imine Methides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ziyang Wang
- Qingdao University Department of Chemistry Qingdao CHINA
| | - Yuyu Cheng
- Southern University of Science and Technology Department of Chemistry Shenzhen CHINA
| | - Zhibin Yue
- Qingdao University Department of Chemistry Qingdao CHINA
| | - Xuling Chen
- Southern University of Science and Technology Department of Chemistry Shenzhen CHINA
| | - Pengfei Li
- Southern University of Science and Technology Department of Chemistry 1088 Xueyuan Blvd., Nanshan district 518055 Shenzhen CHINA
| | - Wenjun Li
- Qingdao University Department of Chemistry Qingdao CHINA
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20
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Lin X, Shen B, Wang Z, Cheng Y, Chen X, Li P, Yu P, Li W. Organocatalytic Enantioselective 1,10-Addition of Alkynyl Indole Imine Methides with Thiazolones: An Access to Axially Chiral Tetrasubstituted Allenes. Org Lett 2022; 24:4914-4918. [PMID: 35770873 DOI: 10.1021/acs.orglett.2c01794] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An asymmetric organocatalytic remote 1,10-addition of alkynyl indole imine methides generated in situ from α-(6-indolyl) propargylic alcohols with thiazolones has been developed for the first time, affording axially chiral tetrasubstituted allenes featuring vicinal sulfur-containing quaternary carbon stereocenters in high yields with excellent stereoselectivities. The representative scale-up reaction and transformations of the 1,10-adduct were examined. The reaction mechanism was expounded by control experiments and DFT calculations.
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Affiliation(s)
- Xiao Lin
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Boming Shen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ziyang Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Yuyu Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Peiyuan Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
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21
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Unhale RA, Sadhu MM, Singh VK. Chiral Brønsted Acid Catalyzed Enantioselective Synthesis of Spiro-Isoindolinone-Indolines via Formal [3 + 2] Cycloaddition. Org Lett 2022; 24:3319-3324. [PMID: 35507765 DOI: 10.1021/acs.orglett.2c00748] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel organocatalytic asymmetric formal [3 + 2] cycloaddition of 3-substituted 1H-indoles with in situ generated 3-hydroxy-isoindolinone-derived β,γ-alkynyl-α-ketimines has been developed. A variety of biologically relevant chiral spiro-isoindolinone-indolines were achieved with excellent yields (up to 99%) and enantioselectivity (up to 99% ee) under mild conditions. The gram-scale reaction of this methodology and several interesting transformations of the products have been demonstrated.
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Affiliation(s)
- Rajshekhar A Unhale
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Milon M Sadhu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India.,Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
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22
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Wang X, Chen X, Lin W, Li P, Li W. Recent Advances in Organocatalytic Enantioselective Synthesis of Axially Chiral Allenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200085] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xing Wang
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Wei Lin
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Wenjun Li
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
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23
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Loui HJ, Schneider C. Cooperative Palladium/Brønsted Acid Catalysis toward the Highly Enantioselective Allenylation of β-Keto Esters. Org Lett 2022; 24:1496-1501. [PMID: 35171616 DOI: 10.1021/acs.orglett.2c00179] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report the first enantioselective allenylation of Pd enolates enabled by cooperative Pd/Brønsted acid catalysis employing β-keto esters and propargyl alcohols. The enantioselectivity originates solely from an in-situ-generated chiral metal enolate in an open transition state with no additional binding of the propargyl component to the catalyst. Thus a broad substrate scope was established, furnishing hitherto inaccessible products in very good yields with excellent enantioselectivities (up to >99:1 e.r.).
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Affiliation(s)
- Henning J Loui
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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24
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Wang X, Song Q, Chen X, Li P, Qi Y, Li W. Organocatalytic Regio- and Enantioselective aza-1,8-Conjugate Additions of Isoxazol-5(4 H)-ones to 6-Methide-6 H-indoles. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202112023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Qian C, Liu M, Sun J, Li P. Chiral phosphoric acid-catalyzed regio- and enantioselective reactions of functionalized propargylic alcohols. Org Chem Front 2022. [DOI: 10.1039/d1qo01864g] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Chiral phosphoric acid has been utilized for covalent activation of propargylic alcohols to act as pre-catalyst. With this activation mode, a range of highly regio- and enantioenriched heterocyclic products could be generated efficiently from racemic propargylic alcohols.
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Affiliation(s)
- Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Meiwen Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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26
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Wu Y, Yue Z, Qian C, Chen X, Li F, Li P, Li W. Organocatalytic Enantioselective Construction of Axially Chiral Tetrasubstituted Allenes via 1,6‐Addition of Alkynyl Indole Imine Methides with 2‐Substituted Indoles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yu Wu
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Zhibin Yue
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Fushuai Li
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
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27
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Xiong T, Yuan H, Yang F, Jiang J. Brønsted acid-catalyzed 1,6-hydrophosphination of propargylic para-quinone methides and aza-para-quinone methides for the rapid construction of phosphorus-substituted quaternary carbon centers. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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28
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Li W, Zheng Y, Qu E, Bai J, Deng Q. β
‐Keto Amides: A Jack‐of‐All‐Trades Building Block in Organic Chemistry. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wanfang Li
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yan Zheng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Erdong Qu
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Jin Bai
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Qinyue Deng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
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29
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Ng JS, Hayashi T. Asymmetric Synthesis of Fluorinated Allenes by Rhodium‐Catalyzed Enantioselective Alkylation/Defluorination of Propargyl Difluorides with Alkylzincs. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jia Sheng Ng
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Tamio Hayashi
- Department of Chemistry National Tsing-Hua University Hsinchu 30013 Taiwan
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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30
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Woldegiorgis AG, Han Z, Lin X. Organocatalytic Asymmetric Dearomatization Reaction for the Synthesis of Axial Chiral Allene-Derived Naphthalenones Bearing Quaternary Stereocenters. Org Lett 2021; 23:6606-6611. [PMID: 34387497 DOI: 10.1021/acs.orglett.1c01849] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The highly regio-, diastereo-, and enantioselective dearomatization reaction of 1-substituted 2-naphthols and β,γ-alkynyl-α-imino esters with complete atom economy is disclosed via chiral phosphoric acid catalysis. This protocol provides facile and efficient access to asymmetric construction of a broad range of axially chiral allene-derived naphthalenones bearing quaternary stereocenters in good yields with high diastereoselectivities and enantioselectivities.
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Affiliation(s)
| | - Zhao Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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31
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Roy D, Tharra P, Baire B. An Approach for the Generation of γ-Propenylidene-γ-butenolides and Application to the Total Synthesis of Rubrolides. Org Lett 2021; 23:5605-5610. [PMID: 34259007 DOI: 10.1021/acs.orglett.1c01529] [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
Design and synthesis of a new class of γ-butenolides, viz. β-aryl-γ-propenylidene-γ-butenolides, have been reported from β-aryl-Z-enoate propargylic alcohols in the presence of acid. Isolation of β-aryl-γ-propenylidene-γ-butenolides and their O18-isomer confirmed the intermediacy of the allenyl-lactonium ion as well as the cyclic-hemiacetal during the proposed mechanism. By utilizing the β-aryl-γ-methylenecyclohexenylidene-γ-butenolides as starting materials, a highly stereoselective and efficient approach has been developed for the syntheses of frameworks of rubrolide natural products. This strategy was further extended for the total synthesis of rubrolide E.
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Affiliation(s)
- Debayan Roy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
| | - Prabhakararao Tharra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
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32
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Ng JS, Hayashi T. Asymmetric Synthesis of Fluorinated Allenes by Rhodium-Catalyzed Enantioselective Alkylation/Defluorination of Propargyl Difluorides with Alkylzincs. Angew Chem Int Ed Engl 2021; 60:20771-20775. [PMID: 34310834 DOI: 10.1002/anie.202109290] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 11/08/2022]
Abstract
The reaction of propargyl difluorides R1 CF2 C≡CR2 with alkylzincs R3 ZnCl giving axially chiral fluorinated allenes R1 FC=C=CR2 R3 with high enantioselectivity (up to 99 % ee) was found to be catalyzed by a chiral diene/rhodium complex. A key step in the catalytic cycle is selective elimination of one of the enantiotopic fluorides at the β-position of an alkenyl-Rh intermediate, which is generated by regioselective addition of R3 -Rh onto the triple bond of the starting difluorides.
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Affiliation(s)
- Jia Sheng Ng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Tamio Hayashi
- Department of Chemistry, National Tsing-Hua University, Hsinchu, 30013, Taiwan.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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33
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Kikuchi J, Terada M. Enantioconvergent Substitution Reactions of Racemic Electrophiles by Organocatalysis. Chemistry 2021; 27:10215-10225. [PMID: 33783887 DOI: 10.1002/chem.202100439] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 12/17/2022]
Abstract
Over the past decades, the development of enantioselective catalysis using organocatalysts has evolved into an active research field and a number of enantioselective transformations have been established. However, despite their being a highly desirable process for the synthesis of organic molecules in an enantioenriched form, the enantioconvergent substitution reactions of racemic electrophiles using organocatalysts still present several challenges. Although intrinsic difficulties in the catalytic stereocontrol abound due to the initial chiral information of racemic electrophiles, in recent years, mechanistically diverse enantioconvergent processes have been intensively investigated in organocatalysis. This Minireview focuses on recent achievements in the development of enantioconvergent substitution reactions of racemic electrophiles using organocatalysts. The contents are classified on the basis of the mechanistic types of enantioconvergent processes.
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Affiliation(s)
- Jun Kikuchi
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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34
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Song L, Ni D, Han W, Tang J, Yang F, Liu S. FeTPPCl/FeCl 3 Co-Catalyzed One-Pot Green Synthesis of α-Diaryl-β-alkynol Derivatives via Propargylic Carbocation Chemistry. J Org Chem 2021; 86:9306-9316. [PMID: 34228462 DOI: 10.1021/acs.joc.1c00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A green and highly efficient one-pot method for α-diaryl-β-alkynol derivatives in water at room temperature was developed using the cocatalysis of a Lewis acid and meso-tetraphenylporphyrin iron(III) chloride (FeTPPCl). The unprecedented transformation was promoted by a modulation of the charge properties of propargylic carbocation chemistry and the use of an in situ-generated oxonium ylide as a matching nucleophile. The reaction was performed in water at room temperature with a highly step-economic manipulation in good to excellent yields and with a broad substrate scope. Water also acts as the third reactant for the one-pot transformation. Notably, the FeTPPCl catalyst can be directly reused four times with a slight discount in yields.
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Affiliation(s)
- Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Dan Ni
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Wangyujing Han
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Jie Tang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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35
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Xie Y, Yang X, Xu J, Chai H, Liu H, Zhang J, Song J, Gao Y, Jin Z, Chi YR. Access to Allene‐Containing Molecules via Enantioselective Reactions of Azolium Cumulenolate Intermediates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yongtao Xie
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Xing Yang
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Jun Xu
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Huifang Chai
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Hongxia Liu
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Junmin Zhang
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Jun Song
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Yuan Gao
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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36
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Xie Y, Yang X, Xu J, Chai H, Liu H, Zhang J, Song J, Gao Y, Jin Z, Chi YR. Access to Allene-Containing Molecules via Enantioselective Reactions of Azolium Cumulenolate Intermediates. Angew Chem Int Ed Engl 2021; 60:14817-14823. [PMID: 33834597 DOI: 10.1002/anie.202102177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/29/2021] [Indexed: 12/17/2022]
Abstract
Azolium cumulenolates are a special type of intermediates in N-heterocyclic carbene catalysis. They contain elongated linear structures with three contiguous C=C bonds and sterically unhindered α-carbon atoms. These structural features make it difficult to develop enantioselective reactions for these intermediates. Here we disclose the first carbene-catalyzed highly enantioselective addition reactions of azolium cumulenolates. The reaction starts with alkynals as the precursors for azolium cumulenolate intermediates that undergo enantioselective addition to activated ketones. From the same set of substrates, both allene and spirooxindole products can be obtained with high yields and excellent enantioselectivities. The allene moieties in our optically enriched products carry rich reactivities and can be transformed to diverse molecules. The spirooxindole scaffolds in our products are important structural motifs in natural products and medicines.
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Affiliation(s)
- Yongtao Xie
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Xing Yang
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Jun Xu
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Huifang Chai
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Hongxia Liu
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Junmin Zhang
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jun Song
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yuan Gao
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District, Guiyang, 550025, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District, Guiyang, 550025, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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37
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Qiu ZW, Xu XT, Pan HP, Jia ZS, Ma AJ, Peng JB, Du JY, Feng N, Li BQ, Zhang XZ. Brønsted Acid-Catalyzed Formal (3+3)-Annulation of Propargylic (Aza)- para-Quinone Methides with 4-Hydroxycoumarins and 1,3-Dicarbonyl Compounds. J Org Chem 2021; 86:6075-6089. [PMID: 33820419 DOI: 10.1021/acs.joc.0c02844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Herein, we describe a highly effective 1,8-conjugate-addition-mediated formal (3+3)-annulation of (aza)-para-quinone methides in situ generated from propargylic alcohols with 4-hydroxycoumarins and 1,3-dicarbonyl compounds under the catalysis of a Brønsted acid. This methodology affords efficient and practical access to synthetically important and highly functionalized pyranocoumarins and pyrans in excellent yields under mild conditions. Importantly, these products exhibit impressive inhibitory activity toward α-glucosidase.
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Affiliation(s)
- Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Zhen-Sheng Jia
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
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38
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Xu C, Ning C, Yang S, Wei Y, Shi M. Rhodium‐Catalyzed Asymmetric Cycloisomerization of 1,3‐Diketones with Keto‐Vinylidenecyclopropanes: Synthesis of Enantiomerically Enriched Cyclic
β
‐Amino Alcohols. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chen Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Chao Ning
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Song Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 354 Fenglin Lu Shanghai 200032 People's Republic of China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 354 Fenglin Lu Shanghai 200032 People's Republic of China
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39
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Li F, Liang S, Luan Y, Chen X, Zhao H, Huang A, Li P, Li W. Organocatalytic regio-, diastereo- and enantioselective γ-additions of isoxazol-5(4 H)-ones to β,γ-alkynyl-α-imino esters for the synthesis of axially chiral tetrasubstituted α-amino allenoates. Org Chem Front 2021. [DOI: 10.1039/d0qo01505a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The chiral phosphoric acid catalyzed regio-, diastereo- and enantioselective reaction of isoxazol-5(4H)-ones with β,γ-alkynyl-α-imino esters has been developed.
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Affiliation(s)
- Fushuai Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Shuai Liang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Yepeng Luan
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry
- Guangdong Provincial Key Laboratory of Catalysis
- Southern University of Science and Technology
- Shenzhen
- China
| | - Hanhui Zhao
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Anqi Huang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry
- Guangdong Provincial Key Laboratory of Catalysis
- Southern University of Science and Technology
- Shenzhen
- China
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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40
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Duan SB, Zhang HY, Hao BY, Zhao J, Han YP, Zhang Y, Liang YM. Palladium-catalyzed intramolecular diastereoselective dearomatization reaction of indoles with N-tosylhydrazones. Org Chem Front 2021. [DOI: 10.1039/d1qo00893e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel, highly diastereoselective palladium-catalyzed dearomative reaction of N-halobenzoyl o-haloaniline derivatives has been developed using functionalized N-tosylhydrazones as the coupling partners.
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Affiliation(s)
- Shao-Bo Duan
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Bo-Ya Hao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Ya-Ping Han
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
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41
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Wang Z, Lin X, Chen X, Li P, Li W. Organocatalytic stereoselective 1,6-addition of thiolacetic acids to alkynyl indole imine methides: access to axially chiral sulfur-containing tetrasubstituted allenes. Org Chem Front 2021. [DOI: 10.1039/d1qo00394a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A chiral phosphoric acid-catalyzed enantioselective 1,6-conjugate addition of thiolacetic acid to alkynyl indole imine methide in situ formed from α-(3-indolyl) propargylic alcohol has been established.
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Affiliation(s)
- Ziyang Wang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Xiao Lin
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry
- Guangdong Provincial Key Laboratory of Catalysis
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry
- Guangdong Provincial Key Laboratory of Catalysis
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- China
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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42
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Song Q, Zhang P, Liang S, Chen X, Li P, Li W. Organocatalytic Regio- and Enantioselective 1,8-Additions of Nitrogen and Sulfur Nucleophiles to 6-Methylene-6H-indoles. Org Lett 2020; 22:7859-7863. [DOI: 10.1021/acs.orglett.0c02769] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qianqian Song
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Pei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Shuai Liang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Catalysis, SUSTech, Shenzhen 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
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43
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Zhang XZ, Li BQ, Qiu ZW, Ma AJ, Peng JB, Du JY, Feng N, Xu XT, Pan HP. Synthesis of Naphthopyrans via Formal (3+3)-Annulation of Propargylic (Aza)-para-Quinone Methides with Naphthols. J Org Chem 2020; 85:13306-13316. [DOI: 10.1021/acs.joc.0c01791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, People’s Republic of China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
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44
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Hu Y, Shi W, Zheng B, Liao J, Wang W, Wu Y, Guo H. Organocatalytic Asymmetric C(sp
2
)−H Allylic Alkylation: Enantioselective Synthesis of Tetrasubstituted Allenoates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009460] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yimin Hu
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wangyu Shi
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Bing Zheng
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Hongchao Guo
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
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45
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Hu Y, Shi W, Zheng B, Liao J, Wang W, Wu Y, Guo H. Organocatalytic Asymmetric C(sp
2
)−H Allylic Alkylation: Enantioselective Synthesis of Tetrasubstituted Allenoates. Angew Chem Int Ed Engl 2020; 59:19820-19824. [PMID: 32820579 DOI: 10.1002/anie.202009460] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Yimin Hu
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wangyu Shi
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Bing Zheng
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Hongchao Guo
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
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46
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Li X, Sun J. Organocatalytic Enantioselective Synthesis of Chiral Allenes: Remote Asymmetric 1,8‐Addition of Indole Imine Methides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006137] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xingguang Li
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
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47
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Zhu WR, Su Q, Diao HJ, Wang EX, Wu F, Zhao YL, Weng J, Lu G. Enantioselective Dehydrative γ-Arylation of α-Indolyl Propargylic Alcohols with Phenols: Access to Chiral Tetrasubstituted Allenes and Naphthopyrans. Org Lett 2020; 22:6873-6878. [PMID: 32808789 DOI: 10.1021/acs.orglett.0c02386] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Herein, we report an enantioselective dehydrative γ-arylation of α-indolyl propargylic alcohols with phenols via organocatalysis, which provides efficient access to chiral tetrasubstituted allenes and naphthopyrans in high yields with excellent regio- and enantioselectivities under mild conditions. This method features the use of cheaply available naphthols/phenols as the C-H aryl source and liberating water as the sole byproduct. Control experiments suggest that the excellent enantioselectivity and remote regioselectivity stem from dual hydrogen-bonding interaction with the chiral phosphoric acid catalyst.
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Affiliation(s)
- Wen-Run Zhu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Qiong Su
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Hong-Juan Diao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Er-Xuan Wang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Feng Wu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Yun-Long Zhao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Jiang Weng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Gui Lu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
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48
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Zhang XZ, Li BQ, Qiu ZW, Wen GH, Ma AJ, Bao PJ, Du JY, Xu XT, Feng N. Synthesis of Pyrrolo[1,2-a]indoles via (3+2)-Annulations of (Aza)-para-Quinone Methides with Indoles. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707348] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and straightforward Brønsted acid mediated (3+2)-annulation of (aza)-para-quinone methides, generated in situ from propargylic alcohols and indoles, has been developed involving 1,8-conjugate addition/5-endo annulation cascade. This protocol affords a mild and effective method for the construction of synthetically important and structurally interesting functionalized pyrrolo[1,2-a]indoles.
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Affiliation(s)
- Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University
| | - Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University
| | - Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University
| | - Gui-Hua Wen
- School of Biotechnology and Health Sciences, Wuyi University
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University
| | - Peng-Jin Bao
- School of Biotechnology and Health Sciences, Wuyi University
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University
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49
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Li X, Sun J. Organocatalytic Enantioselective Synthesis of Chiral Allenes: Remote Asymmetric 1,8‐Addition of Indole Imine Methides. Angew Chem Int Ed Engl 2020; 59:17049-17054. [DOI: 10.1002/anie.202006137] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Xingguang Li
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
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50
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Bai JF, Zhao L, Wang F, Yan F, Kano T, Maruoka K, Li Y. Organocatalytic Formal (3 + 2) Cycloaddition toward Chiral Pyrrolo[1,2-a]indoles via Dynamic Kinetic Resolution of Allene Intermediates. Org Lett 2020; 22:5439-5445. [DOI: 10.1021/acs.orglett.0c01812] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jian-Fei Bai
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Lulu Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Fang Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Fachao Yan
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Yuehui Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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