1
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Zhou J, Meng L, Yang Z, Wang JJ. Enantio- and Regioselective Cascade Hydroboration of Methylenecyclopropanes for Facile Access to Chiral 1,3- and 1,4-Bis(boronates). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400096. [PMID: 38477439 DOI: 10.1002/advs.202400096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/06/2024] [Indexed: 03/14/2024]
Abstract
Chiral 1, n-bis(boronate) plays a crucial role in organic synthesis and medicinal chemistry. However, their catalytic and asymmetric synthesis has long posed a challenge in terms of operability and accessibility from readily available substrates. The recent discovery of the C═C bond formation through β-C elimination of methylenecyclopropanes (MCP) has provided an exciting opportunity to enhance molecular complexity. In this study, the catalyzed asymmetric cascade hydroboration of MCP is developed. By employing different ligands, various homoallylic boronate intermediate are obtained through the hydroboration ring opening process. Subsequently, the cascade hydroboration with HBpin or B2pin2 resulted in the synthesis of enantioenriched chiral 1,3- and 1,4-bis(boronates) in high yields, accompanied by excellent chemo- and enantioselectivities. The selective transformation of these two distinct C─B bonds also demonstrated their application potential in organic synthesis.
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Affiliation(s)
- Jian Zhou
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Ling Meng
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Ziyi Yang
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Jun Joelle Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
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2
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Ashraf R, Zahoor AF, Ali KG, Nazeer U, Saif MJ, Mansha A, Chaudhry AR, Irfan A. Development of novel transition metal-catalyzed synthetic approaches for the synthesis of a dihydrobenzofuran nucleus: a review. RSC Adv 2024; 14:14539-14581. [PMID: 38708111 PMCID: PMC11066739 DOI: 10.1039/d4ra01830c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
The synthesis of dihydrobenzofuran scaffolds bears pivotal significance in the field of medicinal chemistry and organic synthesis. These heterocyclic scaffolds hold immense prospects owing to their significant pharmaceutical applications as they are extensively employed as essential precursors for constructing complex organic frameworks. Their versatility and importance make them an interesting subject of study for researchers in the scientific community. While exploring their synthesis, researchers have unveiled various novel and efficient pathways for assembling the dihydrobenzofuran core. In the wake of extensive data being continuously reported each year, we have outlined the recent updates (post 2020) on novel methodological accomplishments employing the efficient catalytic role of several transition metals to forge dihydrobenzofuran functionalities.
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Affiliation(s)
- Rabia Ashraf
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Kulsoom Ghulam Ali
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Usman Nazeer
- Department of Chemistry, University of Houston 3585 Cullen Boulevard Texas 77204-5003 USA
| | - Muhammad Jawwad Saif
- Department of Applied Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha P. O. Box 551 Bisha 61922 Saudi Arabia
| | - Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
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3
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Liang YF, Bilal M, Tang LY, Wang TZ, Guan YQ, Cheng Z, Zhu M, Wei J, Jiao N. Carbon-Carbon Bond Cleavage for Late-Stage Functionalization. Chem Rev 2023; 123:12313-12370. [PMID: 37942891 DOI: 10.1021/acs.chemrev.3c00219] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Late-stage functionalization (LSF) introduces functional group or structural modification at the final stage of the synthesis of natural products, drugs, and complex compounds. It is anticipated that late-stage functionalization would improve drug discovery's effectiveness and efficiency and hasten the creation of various chemical libraries. Consequently, late-stage functionalization of natural products is a productive technique to produce natural product derivatives, which significantly impacts chemical biology and drug development. Carbon-carbon bonds make up the fundamental framework of organic molecules. Compared with the carbon-carbon bond construction, the carbon-carbon bond activation can directly enable molecular editing (deletion, insertion, or modification of atoms or groups of atoms) and provide a more efficient and accurate synthetic strategy. However, the efficient and selective activation of unstrained carbon-carbon bonds is still one of the most challenging projects in organic synthesis. This review encompasses the strategies employed in recent years for carbon-carbon bond cleavage by explicitly focusing on their applicability in late-stage functionalization. This review expands the current discourse on carbon-carbon bond cleavage in late-stage functionalization reactions by providing a comprehensive overview of the selective cleavage of various types of carbon-carbon bonds. This includes C-C(sp), C-C(sp2), and C-C(sp3) single bonds; carbon-carbon double bonds; and carbon-carbon triple bonds, with a focus on catalysis by transition metals or organocatalysts. Additionally, specific topics, such as ring-opening processes involving carbon-carbon bond cleavage in three-, four-, five-, and six-membered rings, are discussed, and exemplar applications of these techniques are showcased in the context of complex bioactive molecules or drug discovery. This review aims to shed light on recent advancements in the field and propose potential avenues for future research in the realm of late-stage carbon-carbon bond functionalization.
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Affiliation(s)
- Yu-Feng Liang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Muhammad Bilal
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Le-Yu Tang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Tian-Zhang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yu-Qiu Guan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Minghui Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jialiang Wei
- Changping Laboratory, Yard 28, Science Park Road, Changping District, Beijing 102206, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Changping Laboratory, Yard 28, Science Park Road, Changping District, Beijing 102206, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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4
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Ahmed J, Haug GC, Nguyen VD, Porey A, Trevino R, Larionov OV. Catalytic Dienylation: An Emergent Strategy for the Stereoselective Construction of Conjugated Dienes and Polyenes. SYNTHESIS-STUTTGART 2023; 55:1642-1651. [PMID: 37457884 PMCID: PMC10348707 DOI: 10.1055/a-1924-2564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Stereoselective construction of conjugated dienes and polyenes has remained an enduring synthetic problem, due to the central roles they play in natural product synthesis, methodology, and medicine. This review focuses on the recent developments in dienylation as an emerging strategy for the direct installation of unsaturated four carbon atom units of conjugated π-systems, outlining the regio- and stereoselectivity, as well as the synthetic scope of reactions with various dienylating reagents and the mechanistic implications of the catalytic cross-coupling processes that are used to enable dienylation.
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Affiliation(s)
- Jasimuddin Ahmed
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Graham C Haug
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Viet D Nguyen
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Arka Porey
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Ramon Trevino
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Oleg V Larionov
- Department of Chemistry, the University of Texas at San Antonio, San Antonio, TX 78249, USA
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Zhou J, Meng L, Lin S, Cai B, Wang J. Palladium-catalyzed Enantio- and Regioselective Ring-Opening Hydrophosphinylation of Methylenecyclopropanes. Angew Chem Int Ed Engl 2023:e202303727. [PMID: 37186017 DOI: 10.1002/anie.202303727] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
Transition metal-catalyzed hydrofunctionalization of methylenecyclopropanes (MCP) has presented a considerable challenge due to the difficult manipulation of regioselectivity and complicated reaction patterns. Herein, we report a straightforward Pd-catalyzed ring-opening hydrophosphinylation reaction of MCP via highly selective C-C bond cleavage. This allows for rapid and efficient access to a wide range of chiral allylic phosphine oxides in good yields and high enantioselectivities. Additionally, density functional theory (DFT) calculations were performed to elucidate the reaction mechanism and the origin of product enantioselectivity.
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Affiliation(s)
- Jian Zhou
- Hong Kong Baptist University, Department of Chemistry, HONG KONG
| | - Ling Meng
- Hong Kong Baptist University, Department of Chemistry, HONG KONG
| | - Shujuan Lin
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter, Department of Chemistry, CHINA
| | - Baohua Cai
- Southern University of Science and Technology, Department of Chemistry, CHINA
| | - Jun Wang
- Hong Kong Baptist University, Department of Chemistry, Ho Sin Hang Campus, 000000, Hong Kong, HONG KONG
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Mao Y, Chen W, Li C, Miao L, Lin Y, Ling F, Chen Z, Yao J. Synthesis of 3,4,5-trisubstituted phenols via Rh(III)-catalyzed alkenyl C-H activation assisted by phosphonium cations. Chem Commun (Camb) 2023; 59:3775-3778. [PMID: 36912283 DOI: 10.1039/d3cc00017f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
An efficient method for the construction of various 3,4,5-trisubstituted phenol derivatives has been achieved via the Rh(III)-catalyzed coupling of phosphonium cations with internal alkynes. This protocol shows good substrate compatibility, as an array of structurally and electronically diverse phosphonium compounds react efficiently with up to 87% yield.
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Affiliation(s)
- Yan Mao
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Wenxi Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Changchang Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Lin Miao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Yanfei Lin
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Fei Ling
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Zhangpei Chen
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China.
| | - Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
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7
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Ramesh B, Jeganmohan M. Ru(II)- or Rh(III)-Catalyzed Annulation of Aromatic/Vinylic Acids with Alkylidenecyclopropanes via C-H Activation. J Org Chem 2022; 87:5668-5681. [PMID: 35414175 DOI: 10.1021/acs.joc.1c03141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient and new route for the synthesis of (E)-4-benzylideneisochroman-1-ones through tandem cascade annulation of benzoic acids with alkylidenecyclopropanes using Ru(II) as a catalyst is demonstrated. It is important to note that the reaction delivers selectively E-stereoselective 4-benzylideneisochroman-1-one derivatives in moderate to good yields, which has completely diverse selectivity as compared with previous methods. Further, the annulation was explored with less-reactive β C-H activation of vinylic acids with alkylidenecyclopropanes, leading to the highly useful α-pyrone derivatives in the presence of an Rh(III) catalyst.
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Affiliation(s)
- Balu Ramesh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036 Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036 Tamil Nadu, India
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Liu YZ, Zeng YF, Shu B, Zheng YC, Xiao L, Chen SY, Song JL, Zhang X, Zhang SS. Rh( iii)-Catalyzed dienylation and cyclopropylation of indoles at the C4 position with alkylidenecyclopropanes. Org Chem Front 2022. [DOI: 10.1039/d2qo00763k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a Rh(iii)-catalyzed C–H functionalization of indoles at the C4 position with alkylidenecyclopropanes (ACPs).
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Affiliation(s)
- Yan-Zhi Liu
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yao-Fu Zeng
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Bing Shu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Yi-Chuan Zheng
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Lin Xiao
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Shao-Yong Chen
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jia-Lin Song
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Xuanxuan Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
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