1
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Chen S, Wang YN, Xie J, Li W, Ye M, Ma X, Yang K, Li S, Lan Y, Song Q. Chemo-, regio- and stereoselective access to polysubstituted 1,3-dienes via Nickel-catalyzed four-component reactions. Nat Commun 2024; 15:5479. [PMID: 38942777 PMCID: PMC11213876 DOI: 10.1038/s41467-024-49870-1] [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: 03/22/2024] [Accepted: 06/21/2024] [Indexed: 06/30/2024] Open
Abstract
1,2-Difunctionalization of alkynes offers a straightforward approach to access polysubstituted alkenes. However, simultaneous multi-component cascade transformations including difunctionalization of two alkynes with both syn- and anti-selectivity in one catalyst system is undeveloped and proves to be a significant challenge. Herein, we report a Nickel-catalyzed four-component reaction to access polysubstituted 1,3-dienes using two terminal alkynes, aryl boroxines, and perfluoroalkyl iodides, wherein the reaction forms three new C-C bonds in a single vessel and serve as a modular strategy to access polysubstituted 1,3-dienes with excellent chemoselectivity, good regioselectivity and exclusive stereoselectivity. Control experiments reveal the plausible reaction mechanism and DFT calculations explain the cause for the formation of this unusual four-component reaction. Furthermore, we successfully incorporate two biologically active units into 1,2,3,4-tetrasubstituted 1,3-dienes, which greatly increases the diversity of molecular scaffolds and brings more potential values to medicinal chemistry, the synthetic utility of our protocol is further demonstrated by the late-stage transformations.
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Affiliation(s)
- Shanglin Chen
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Ya-Nan Wang
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Jinhui Xie
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Wangyang Li
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Mingxing Ye
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Xingxing Ma
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Shijun Li
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou, China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China.
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou, China.
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, China.
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2
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Yamaguchi H, Takahashi F, Kurogi T, Yorimitsu H. Reductive anti-Dizincation of Arylacetylenes. Chem Asian J 2024; 19:e202400384. [PMID: 38647096 DOI: 10.1002/asia.202400384] [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: 04/05/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
Arylacetylenes undergo anti-1,2-dizincation to afford trans-1,2-dizincioalkenes. The process employs sodium dispersion as a reducing agent and zinc chloride TMEDA complex as a reduction-resistant zinc electrophile. This reductive anti-dizincation contrasts with the conventional additive syn-dimetalation like silylzincation. The resulting dizincated alkenes undergo the cross-coupling to yield multi-substituted alkenes stereoselectively.
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Affiliation(s)
- Haruka Yamaguchi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Fumiya Takahashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takashi Kurogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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3
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Long J, Wang L, Liu X, Liu J, Luo SP, Fang X. Palladium-Catalyzed Hydrocyanation of Ynoates: En Route to the Stereodivergent Synthesis of β-Cyanated α,β-Unsaturated Esters via Ligand Controlled Regio- and Stereoselectivity. Org Lett 2024; 26:3945-3950. [PMID: 38679885 DOI: 10.1021/acs.orglett.4c01192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
A Pd-catalyzed highly regio- and stereoselective hydrocyanation was developed, providing a novel approach to the stereodivergent synthesis of β-cyano-substituted acrylates in good yields with a wide substrate scope. The judicious selection of ligands was crucial for elegant control over the stereodivergence. Furthermore, the success of the E-hydrocyanation hinges on the right matching of Pd and L1, which not only ensured the catalytic activity but also prevented the formation of α-cyanation products.
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Affiliation(s)
- Jinguo Long
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Lingna Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xuefen Liu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Jie Liu
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Shu-Ping Luo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xianjie Fang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
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4
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Lou X, Lin J, Kwok CY, Lyu H. Stereoselective Unsymmetrical 1,1-Diborylation of Alkynes with a Neutral sp 2 -sp 3 Diboron Reagent. Angew Chem Int Ed Engl 2023; 62:e202312633. [PMID: 37822069 DOI: 10.1002/anie.202312633] [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: 08/28/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
The incorporation of two distinct boryl groups at the same carbon center in organic molecules has attracted growing research interest due to its potential for facilitating controlled, precise synthesis through stepwise dual carbon-boron bond transformations. Here we report a method to access unsymmetrical 1,1-diborylalkene (UDBA) stereoselectively via the reaction of readily available alkynes with a neutral sp2 -sp3 diboron reagent (NHC)BH2 -Bpin (NHC=N-heterocyclic carbene). Attributing to the chemically easily distinguishable nature of the sp2 and sp3 boryl moieties, controllable stepwise derivatization of the resultant UDBAs is realized. This process leads to various multifunctionalized olefins and organoborons, such as acylboranes, which are difficult to prepare by other methods.
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Affiliation(s)
- Xiangyu Lou
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Jiaxin Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Chun Yin Kwok
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Hairong Lyu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
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5
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Yang S, Hu H, Chen M. Photoinduced Palladium-Catalyzed Regio- and Chemoselective Elimination of Primary Alkyl Bromides: A Mild Route to Synthesize Unactivated Terminal Olefins. Org Lett 2023; 25:7968-7973. [PMID: 37888796 DOI: 10.1021/acs.orglett.3c02980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Presented is a highly efficient method for visible-light-induced regio- and chemoselective elimination of alkyl halides yielding unactivated terminal olefins vital in organic synthesis. Achieved through ligand control, the reaction exhibits remarkable regioselectivity and suppresses undesired side reactions, particularly 1,5-hydrogen atom transfer (HAT). The process favors primary alkyl halides while preserving secondary and tertiary alkyl bromides, thereby enabling the incorporation of terminal olefins in complex molecules for late-stage functionalization.
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Affiliation(s)
- Sen Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hao Hu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ming Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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6
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Docherty JH, Lister TM, Mcarthur G, Findlay MT, Domingo-Legarda P, Kenyon J, Choudhary S, Larrosa I. Transition-Metal-Catalyzed C-H Bond Activation for the Formation of C-C Bonds in Complex Molecules. Chem Rev 2023. [PMID: 37163671 DOI: 10.1021/acs.chemrev.2c00888] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Site-predictable and chemoselective C-H bond functionalization reactions offer synthetically powerful strategies for the step-economic diversification of both feedstock and fine chemicals. Many transition-metal-catalyzed methods have emerged for the selective activation and functionalization of C-H bonds. However, challenges of regio- and chemoselectivity have emerged with application to highly complex molecules bearing significant functional group density and diversity. As molecular complexity increases within molecular structures the risks of catalyst intolerance and limited applicability grow with the number of functional groups and potentially Lewis basic heteroatoms. Given the abundance of C-H bonds within highly complex and already diversified molecules such as pharmaceuticals, natural products, and materials, design and selection of reaction conditions and tolerant catalysts has proved critical for successful direct functionalization. As such, innovations within transition-metal-catalyzed C-H bond functionalization for the direct formation of carbon-carbon bonds have been discovered and developed to overcome these challenges and limitations. This review highlights progress made for the direct metal-catalyzed C-C bond forming reactions including alkylation, methylation, arylation, and olefination of C-H bonds within complex targets.
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Affiliation(s)
- Jamie H Docherty
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Thomas M Lister
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Gillian Mcarthur
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Michael T Findlay
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Pablo Domingo-Legarda
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jacob Kenyon
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Shweta Choudhary
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Igor Larrosa
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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7
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Wang Z, Lamine W, Miqueu K, Liu SY. A syn outer-sphere oxidative addition: the reaction mechanism in Pd/Senphos-catalyzed carboboration of 1,3-enynes. Chem Sci 2023; 14:2082-2090. [PMID: 36845936 PMCID: PMC9945512 DOI: 10.1039/d2sc05828f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
We report a combined experimental and computational study of Pd/Senphos-catalyzed carboboration of 1,3-enynes utilizing DFT calculations, 31P NMR study, kinetic study, Hammett analysis and Arrhenius/Eyring analysis. Our mechanistic study provides evidence against the conventional inner-sphere β-migratory insertion mechanism. Instead, a syn outer-sphere oxidative addition mechanism featuring a Pd-π-allyl intermediate followed by coordination-assisted rearrangements is consistent with all the experimental observations.
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Affiliation(s)
- Ziyong Wang
- Department of Chemistry, Boston College Chestnut Hill Massachusetts 02467-3860 USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College Chestnut Hill Massachusetts 02467-3860 USA
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
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8
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Yang X, Yuan C, Ge S. Ligand-enabled stereodivergence in nickel-catalyzed regioselective hydroboration of internal allenes. Chem 2023. [DOI: 10.1016/j.chempr.2022.10.003] [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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9
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Li DC, Zeng JH, Yang YH, Zhan ZP. Transition metal-free radical trans-hydroboration of alkynes with NHC-boranes via visible-light photoredox catalysis. Org Chem Front 2023. [DOI: 10.1039/d3qo00135k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Visible-light-induced 4-CzIPN-catalyzed trans-hydroboration of alkynes with NHC-boranes to generate diverse (E)-alkenylboranes with high selectivity.
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10
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Corpas J, Kim-Lee SH, Mauleón P, Arrayás RG, Carretero JC. Beyond classical sulfone chemistry: metal- and photocatalytic approaches for C-S bond functionalization of sulfones. Chem Soc Rev 2022; 51:6774-6823. [PMID: 35838659 DOI: 10.1039/d0cs00535e] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The exceptional versatility of sulfones has been extensively exploited in organic synthesis across several decades. Since the first demonstration in 2005 that sulfones can participate in Pd-catalysed Suzuki-Miyaura type reactions, tremendous advances in catalytic desulfitative functionalizations have opened a new area of research with burgeoning activity in recent years. This emerging field is displaying sulfone derivatives as a new class of substrates enabling catalytic C-C and C-X bond construction. In this review, we will discuss new facets of sulfone reactivity toward further expanding the flexibility of C-S bonds, with an emphasis on key mechanistic features. The inherent challenges confronting the development of these strategies will be presented, along with the potential application of this chemistry for the synthesis of natural products. Taken together, this knowledge should stimulate impactful improvements on the use of sulfones in catalytic desulfitative C-C and C-X bond formation. A main goal of this article is to bring this technology to the mainstream catalysis practice and to serve as inspiration for new perspectives in catalytic transformations.
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Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain.
| | - Shin-Ho Kim-Lee
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain.
| | - Pablo Mauleón
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - Juan C Carretero
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco 28049 Madrid, Spain, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
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11
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Zhan YZ, Meng H, Shu W. Rapid access to t-butylalkylated olefins enabled by Ni-catalyzed intermolecular regio- and trans-selective cross-electrophile t-butylalkylation of alkynes. Chem Sci 2022; 13:4930-4935. [PMID: 35655892 PMCID: PMC9068203 DOI: 10.1039/d2sc00487a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/28/2022] [Indexed: 12/14/2022] Open
Abstract
Among the carbo-difunctionalization of alkynes, the stereoselective dialkylation of alkynes is the most challenging transformation due to associated competitive side reactions and thus remains underdeveloped. Herein, we report the first Ni-catalyzed regio- and trans-selective cross-dialkylation of alkynes with two distinct alkyl bromides to afford olefins with two aliphatic substituents. The reductive conditions circumvent the use of organometallic reagents, enabling the cross-dialkylation process to occur at room temperature from two different alkyl bromides. This operationally simple protocol provides a straightforward and practical access to a wide range of stereodefined dialkylated olefins with broad functional group tolerance from easily available starting materials. A direct reductive cross-dialkylation of alkynes is achieved to afford trans-dialkylated olefins using two distinct alkyl bromides. The reaction undergoes with exclusive chemo-, regio- and stereoselectivity without the use of organometallic reagents.![]()
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Affiliation(s)
- Yi-Zhou Zhan
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Huan Meng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Wei Shu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
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12
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1,4-bis[β-(2-benzoxazoly1) vinyl] benzene (BBVB) laser dye and sodium salt of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS); spectroscopic investigation and DFT, NBO and TD-DFT calculations. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Jia J, Yuan F, Zhang Z, Song X, Hu F, Xia Y. Copper-Catalyzed Ring-Opening Defluoroborylation of gem-Difluorinated Cyclobutenes: A General Route to Bifunctional 1,3-Dienes and Their Applications. Org Lett 2022; 24:1985-1990. [PMID: 35238573 DOI: 10.1021/acs.orglett.2c00403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The exploration of the reactivity of gem-difluorinated small-size rings has continuously drawn attention in recent years but is limited to three-membered carbocycles. Herein we report a copper-catalyzed reaction of gem-fluorinated cyclobutenes with bis(pinacolato)diboron (B2pin2). A sequence of defluoroborylation and a ring-opening process produces B,F-bifunctional 1,3-dienes in a stereoselective manner. The transformation together with the efficient downstream coupling of the boronate and the fluoride moieties collectively constitutes a modular route to highly functionalized and stereocontrolled 1,3-dienes.
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Affiliation(s)
- Jie Jia
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Fushan Yuan
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Zihao Zhang
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China.,School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Xuejiao Song
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Fangdong Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
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14
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Chen H, Gao L, Liu X, Wang G, Li S. B(C
6
F
5
)
3
‐Catalyzed Hydroarylation of Aryl Alkynes for the Synthesis of 1,1‐Diaryl and Triaryl Substituted Alkenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hui Chen
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education Institute of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 P.R. China
| | - Liuzhou Gao
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education Institute of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 P.R. China
| | - Xueting Liu
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education Institute of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 P.R. China
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education Institute of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 P.R. China
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education Institute of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 P.R. China
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15
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Hu X, He J, Zhang Y, Zhou J, Yu J. Highly Stereoselective Positional Isomerization of Styrenes
via
Acid‐Catalyzed
Carbocation Mechanism. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiao‐Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jun‐Xiong He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ying Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
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16
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Xu S, Geng P, Li Y, Liu G, Zhang L, Guo Y, Huang Z. Pincer Iron Hydride Complexes for Alkene Isomerization: Catalytic Approach to Trisubstituted ( Z)-Alkenyl Boronates. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02432] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Songgen Xu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Peiyu Geng
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yuling Li
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guixia Liu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
| | - Lei Zhang
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
| | - Yinlong Guo
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zheng Huang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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17
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Shen X, Huang C, Yuan X, Yu S. Diastereoselective and Stereodivergent Synthesis of 2‐Cinnamylpyrrolines Enabled by Photoredox‐Catalyzed Iminoalkenylation of Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016941] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xu Shen
- State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Congcong Huang
- School of chemistry and chemical engineering Qufu Normal University Qufu 273165 China
| | - Xiang‐Ai Yuan
- School of chemistry and chemical engineering Qufu Normal University Qufu 273165 China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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18
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Shen X, Huang C, Yuan X, Yu S. Diastereoselective and Stereodivergent Synthesis of 2‐Cinnamylpyrrolines Enabled by Photoredox‐Catalyzed Iminoalkenylation of Alkenes. Angew Chem Int Ed Engl 2021; 60:9672-9679. [DOI: 10.1002/anie.202016941] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/24/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Xu Shen
- State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Congcong Huang
- School of chemistry and chemical engineering Qufu Normal University Qufu 273165 China
| | - Xiang‐Ai Yuan
- School of chemistry and chemical engineering Qufu Normal University Qufu 273165 China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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19
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Ni-catalyzed regio- and stereo-defined intermolecular cross-electrophile dialkylation of alkynes without directing group. Nat Commun 2021; 12:928. [PMID: 33568646 PMCID: PMC7876002 DOI: 10.1038/s41467-021-21083-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 01/11/2021] [Indexed: 01/28/2023] Open
Abstract
The development of straightforward synthesis of regio- and stereodefined alkenes with multiple aliphatic substituents under mild conditions is an unmet challenge owing to competitive β-hydride elimination and selectivity issues. Herein, we report the nickel-catalyzed intermolecular cross-dialkylation of alkynes devoid of directing or activating groups to afford multiple aliphatic substituted alkenes in a syn-selective fashion at room temperature. The combination of two-electron oxidative cyclometallation and single-electron cross-electrophile coupling of nickel enables the syn-cross-dialkylation of alkynes at room temperature. This reductive protocol enables the sequential installation of two different alkyl substituents onto alkynes in a regio- and stereo-selective manner, circumventing the tedious preformation of sensitive organometallic reagents. The synthetic utility of this protocol is demonstrated by efficient synthesis of multi-substituted unfunctionalized alkenes and diverse transformations of the product.
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20
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Xu S, Liu G, Huang Z. Iron Catalyzed Isomerization of
α‐Alkyl
Styrenes to Access Trisubstituted Alkenes. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000492] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Songgen Xu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Guixia Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zheng Huang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- Chang‐Kung Chuang Institute, East China Normal University Shanghai 200062 China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences 1 Sub‐lane Xiangshan Hangzhou Zhejiang 310024 China
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21
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Zhou X, Chen J. Photoredox-Catalyzed Iminoalkenylation of Alkenes for Diastereoselective and Stereodivergent Synthesis of 2-Cinnamylpyrrolines. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202100037] [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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22
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Bangar PG, Jawalkar PR, Dumbre SR, Raut PK, Patil DJ, Tv N, Sudhakaran S, Iyer S. Mizoroki–Heck reaction of 1,2-disubstituted aryl alkenes: Variables of synthesis, solvent and ligand modulation of reactivity. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1811986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Pronnoy G. Bangar
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Priyanka R. Jawalkar
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Swapnil R. Dumbre
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Pallavi K. Raut
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Dharmaraj J. Patil
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Neethu Tv
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Shana Sudhakaran
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
| | - Suresh Iyer
- Organic Chemistry Division, National Chemical Laboratory, Pune, Maharashtra, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
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23
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Zhang S, Bedi D, Cheng L, Unruh DK, Li G, Findlater M. Cobalt(II)-Catalyzed Stereoselective Olefin Isomerization: Facile Access to Acyclic Trisubstituted Alkenes. J Am Chem Soc 2020; 142:8910-8917. [DOI: 10.1021/jacs.0c02101] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sheng Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Deepika Bedi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Lu Cheng
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Daniel K. Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Michael Findlater
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
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24
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Cao Z, Xu P, Luo Q, Li X, Yu D, Fang H, Shi Z. Conversion of Carbonyl Compounds to Olefins
via
Enolate Intermediate. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201800554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhi‐Chao Cao
- Department of ChemistryFudan University Shanghai 200433 China
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Pei‐Lin Xu
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Qin‐Yu Luo
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Xiao‐Lei Li
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Da‐Gang Yu
- College of ChemistrySichuan University Chengdu Sichuan 610064 China
| | - Huayi Fang
- Department of ChemistryFudan University Shanghai 200433 China
| | - Zhang‐Jie Shi
- Department of ChemistryFudan University Shanghai 200433 China
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
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25
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Tani T, Sawatsugawa Y, Sano Y, Hirataka Y, Takahashi N, Hashimoto S, Sugiura T, Tsuchimoto T. Alkynyl−B(dan)s in Various Palladium‐Catalyzed Carbon−Carbon Bond‐Forming Reactions Leading to Internal Alkynes, 1,4‐Enynes, Ynones, and Multiply Substituted Alkenes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801527] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Tomohiro Tani
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Yuuki Sawatsugawa
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Yusuke Sano
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Yo Hirataka
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Naomi Takahashi
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Sadahiro Hashimoto
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Tetsuya Sugiura
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry, School of Science and TechnologyMeiji University 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
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26
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Reinus B, Kerwin SM. Preparation and Utility of N-Alkynyl Azoles in Synthesis. Molecules 2019; 24:E422. [PMID: 30682796 PMCID: PMC6384649 DOI: 10.3390/molecules24030422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/16/2019] [Accepted: 01/22/2019] [Indexed: 12/05/2022] Open
Abstract
Heteroatom-substituted alkynes have attracted a significant amount of interest in the synthetic community due to the polarized nature of these alkynes and their utility in a wide range of reactions. One specific class of heteroatom-substituted alkynes combines this utility with the presence of an azole moiety. These N-alkynyl azoles have been known for nearly 50 years, but recently there has been a tremendous increase in the number of reports detailing the synthesis and utility of this class of compound. While much of the chemistry of N-alkynyl azoles mirrors that of the more extensively studied N-alkynyl amides (ynamides), there are notable exceptions. In addition, as azoles are extremely common in natural products and pharmaceuticals, these N-alkynyl azoles have high potential for accessing biologically important compounds. In this review, the literature reports of N-alkynyl azole synthesis, reactions, and uses have been assembled. Collectively, these reports demonstrate the growth in this area and the promise of exploiting N-alkynyl azoles in synthesis.
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Affiliation(s)
- Brandon Reinus
- Department of Chemistry, University of Texas at Austin, Austin, TX 78712, USA.
| | - Sean M Kerwin
- Department of Chemistry & Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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27
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Guo L, Song F, Zhu S, Li H, Chu L. syn-Selective alkylarylation of terminal alkynes via the combination of photoredox and nickel catalysis. Nat Commun 2018; 9:4543. [PMID: 30382103 PMCID: PMC6208420 DOI: 10.1038/s41467-018-06904-9] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/25/2018] [Indexed: 11/25/2022] Open
Abstract
Substituted alkenes are pivotal structural motifs found in pharmaceuticals and agrochemicals. Although numerous methods have been developed to construct substituted alkenes, a generally efficient, mild, catalytic platform for the conversion of alkynes to this highly functionalized scaffold via successive C–C bond forming steps remains in high demand. Here we describe an intermolecular, regio- and syn-stereoselective alkylarylation of terminal alkynes with tertiary alkyl oxalates via photoredox-Ni dual catalysis. This catalytic protocol, synergistically combining Ir/Ni-catalyzed alkyne difunctionalization with photoinduced alkene isomerization, affords trisubstituted alkenes with excellent efficiency and syn-stereoselectivity. The mild conditions tolerate many functional groups, allowing for a broad scope with respect to terminal alkynes, aryl bromides, and alkyl oxalates. Converting alkynes into alkenes with high stereoselectivity via two consecutive C-C bond forming steps is a desirable process, yet very challenging. Here, the authors describe a dual photoredox-nickel catalytic system for the regio- and syn-selective alkylarylation of terminal alkynes with alkyl oxalates and aryl bromides.
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Affiliation(s)
- Lei Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Fan Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Huan Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China.
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28
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Mohan M, Pangannaya S, Satyanarayan MN, Trivedi DR. Multicoloured Thiophene Based AIEgens: Single Crystal Structure Elucidation, Spectral Behaviour and DFT Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201800252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Makesh Mohan
- Optoelectronics Laboratory; Department of Physics; National Institute of Technology Karnataka (NITK) Surathkal; Mangalore - 575025
| | - Srikala Pangannaya
- Supramolecular Chemistry Laboratory; Department of Chemistry; National Institute of Technology Karnataka (NITK) Surathkal; Mangalore - 575025
| | - M. N. Satyanarayan
- Optoelectronics Laboratory; Department of Physics; National Institute of Technology Karnataka (NITK) Surathkal; Mangalore - 575025
| | - Darshak R. Trivedi
- Supramolecular Chemistry Laboratory; Department of Chemistry; National Institute of Technology Karnataka (NITK) Surathkal; Mangalore - 575025
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29
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Bangar PG, Jawalkar PR, Dumbre SR, Patil DJ, Iyer S. Silver sequestration of halides for the activation of Pd(OAc)
2
catalyzed Mizoroki‐Heck reaction of 1,1 and 1,2 ‐ Disubstituted alkenes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pronnoy G. Bangar
- Organic Chemistry DivisionNational Chemical Laboratory Dr. Homi Bhabha Road, Pashan Pune Maharashtra 411008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
| | - Priyanka R. Jawalkar
- Medicinal Chemistry DepartmentSai Life Sciences Ltd. Chrysalis Enclave, International Biotech Park, Phase II,Hinjewadi Pune 411057 India
| | - Swapnil R. Dumbre
- Organic Chemistry DivisionNational Chemical Laboratory Dr. Homi Bhabha Road, Pashan Pune Maharashtra 411008 India
| | - Dharmaraj J. Patil
- Organic Chemistry DivisionNational Chemical Laboratory Dr. Homi Bhabha Road, Pashan Pune Maharashtra 411008 India
| | - Suresh Iyer
- Organic Chemistry DivisionNational Chemical Laboratory Dr. Homi Bhabha Road, Pashan Pune Maharashtra 411008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
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30
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Li Y. Copper(I)-catalyzed reaction of unsymmetrical alkyne with HB(pin): a density functional theory study. J PHYS ORG CHEM 2016. [DOI: 10.1002/poc.3630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yan Li
- School of Petroleum and Chemical Engineering; Dalian University of Technology; 2 Dagong Road, New District of Liaodong Bay Panjin City Liaoning Province 124221 China
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31
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Serio N, Roque J, Badwal A, Levine M. Rapid and efficient pesticide detection via cyclodextrin-promoted energy transfer. Analyst 2016; 140:7503-7. [PMID: 26436147 DOI: 10.1039/c5an01471a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cyclodextrins facilitate non-covalent fluorescence energy transfer from a variety of pesticides to high quantum-yield fluorophores, resulting in a rapid, sensitive detection scheme for these compounds with detection limits as low as two micromolar. Such a facile detection tool has significant potential applications in agriculture and public health research.
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Affiliation(s)
- Nicole Serio
- Department of Chemistry, University of Rhode Island, 51 Lower College Road, Kingston, RI 02881, USA.
| | - John Roque
- Department of Chemistry, University of Rhode Island, 51 Lower College Road, Kingston, RI 02881, USA.
| | - Andrew Badwal
- Department of Chemistry, University of Rhode Island, 51 Lower College Road, Kingston, RI 02881, USA.
| | - Mindy Levine
- Department of Chemistry, University of Rhode Island, 51 Lower College Road, Kingston, RI 02881, USA.
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32
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Iwasaki M, Nishihara Y. Synthesis of Multisubstituted Olefins through Regio- and Stereoselective Addition of Interelement Compounds Having B-Si, B-B, and Cl-S Bonds to Alkynes, and Subsequent Cross-Couplings. CHEM REC 2016; 16:2031-45. [PMID: 27331376 DOI: 10.1002/tcr.201600017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 11/06/2022]
Abstract
Multisubstituted olefins are fundamental motifs in organic compounds. In this account, we describe the synthesis of organic molecules bearing an olefinic moiety by the transition-metal-catalyzed regio- and stereoselective addition of a variety of interelement compounds to alkynes. Regio- and stereoselective silaboration, diborylation, and chlorothiolation have been achieved by using the transition-metal catalysts. The subsequent cross-coupling reactions of the boron-containing alkenes to install various aryl groups afforded the corresponding tri- and tetraarylated olefins. This account describes our research on the highly regio- and stereoselective synthesis of multifunctionalized olefins such as tetraarylethenes with four different aryl groups.
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Affiliation(s)
- Masayuki Iwasaki
- Research Institute for Interdisciplinary Science, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary Science, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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33
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Wang J, Mou XQ, Zhang BH, Liu WT, Yang C, Xu L, Xu ZL, Wang SH. A metal-free addition/dearomatization–cyclization/decarboxylation cascade of aryl 3-arylpropiolate toward the synthesis of 1,1-diaryl-2-alkyl-substituted ethylenes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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34
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Lee CI, Shih WC, Zhou J, Reibenspies JH, Ozerov OV. Synthesis of Triborylalkenes from Terminal Alkynes by Iridium-Catalyzed Tandem CH Borylation and Diboration. Angew Chem Int Ed Engl 2015; 54:14003-7. [DOI: 10.1002/anie.201507372] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Indexed: 11/06/2022]
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35
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Lee C, Shih W, Zhou J, Reibenspies JH, Ozerov OV. Synthesis of Triborylalkenes from Terminal Alkynes by Iridium‐Catalyzed Tandem CH Borylation and Diboration. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chun‐I Lee
- Department of Chemistry, Texas A&M University, TAMU ‐ 3255, College Station, TX 77843 (USA) http://www.chem.tamu.edu/rgroup/ozerov/
| | - Wei‐Chun Shih
- Department of Chemistry, Texas A&M University, TAMU ‐ 3255, College Station, TX 77843 (USA) http://www.chem.tamu.edu/rgroup/ozerov/
| | - Jia Zhou
- Department of Chemistry, Harbin Institute of Technology, Harbin 150001 (China)
| | - Joseph H. Reibenspies
- Department of Chemistry, Texas A&M University, TAMU ‐ 3255, College Station, TX 77843 (USA) http://www.chem.tamu.edu/rgroup/ozerov/
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, TAMU ‐ 3255, College Station, TX 77843 (USA) http://www.chem.tamu.edu/rgroup/ozerov/
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36
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Priebbenow DL, Gable RW, Baell J. Regio- and Stereoselective Iodoacyloxylations of Alkynes. J Org Chem 2015; 80:4412-8. [DOI: 10.1021/acs.joc.5b00250] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Daniel L. Priebbenow
- Monash
Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Robert. W. Gable
- School
of Chemistry, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Jonathan Baell
- Monash
Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
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37
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Ragno D, Bortolini O, Fantin G, Fogagnolo M, Giovannini PP, Massi A. Nucleophilic and Electrophilic Double Aroylation of Chalcones with Benzils Promoted by the Dimsyl Anion as a Route to All Carbon Tetrasubstituted Olefins. J Org Chem 2015; 80:1937-45. [DOI: 10.1021/jo502582e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Daniele Ragno
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
| | - Olga Bortolini
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
| | - Giancarlo Fantin
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
| | - Marco Fogagnolo
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
| | - Pier Paolo Giovannini
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
| | - Alessandro Massi
- Dipartimento
di Scienze Chimiche
e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-27, I-44121 Ferrara, Italy
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38
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Nishikata T, Nakamura K, Inoue Y, Ishikawa S. A detachable ester bond enables perfect Z-alkylations of olefins for the synthesis of tri- and tetrasubstituted alkenes. Chem Commun (Camb) 2015; 51:10154-7. [DOI: 10.1039/c5cc03474d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We developed a tandem esterification–intramolecular alkylation reaction catalyzed by a copper catalyst, leading to the formation of a lactone, followed by hydrolysis of the resulting lactone to give Z-alkylated alkenes in good yields with perfect selectivities.
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Affiliation(s)
- Takashi Nishikata
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
| | - Kimiaki Nakamura
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
| | - Yuki Inoue
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
| | - Shingo Ishikawa
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
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Murakami K, Yorimitsu H, Osuka A. Two-Step, Practical, and Diversity-Oriented Synthesis of Multisubstituted Benzofurans from Phenols through Pummerer Annulation Followed by Cross-coupling. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20140241] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kei Murakami
- Department of Chemistry, Graduate School of Science, Kyoto University
- The Hakubi Center for Advanced Research, Kyoto University
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University
- ACT-C, JST
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University
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40
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Ide M, Yauchi Y, Shiogai R, Iwasawa T. Regio- and stereoselective synthesis of (E)-1-bromo-2-iodoalkenes through iodobromination of internal alkynes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Murakami K, Yorimitsu H, Osuka A. Practical, Modular, and General Synthesis of Benzofurans through Extended Pummerer Annulation/Cross-Coupling Strategy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403288] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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42
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Murakami K, Yorimitsu H, Osuka A. Practical, modular, and general synthesis of benzofurans through extended Pummerer annulation/cross-coupling strategy. Angew Chem Int Ed Engl 2014; 53:7510-3. [PMID: 24923582 DOI: 10.1002/anie.201403288] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Indexed: 12/25/2022]
Abstract
Operationally simple, efficient, and widely applicable Pummerer annulations of simple phenols with ketene dithioacetal monoxides, with the aid of trifluoroacetic anhydride, have been shown to provide a variety of benzofurans having a methylthio group at the 2-position. Subsequent and newly developed nickel-catalyzed arylation at the methylthio group culminates in diversity-oriented synthesis of multisubstituted benzofurans. Our extended Pummerer annulation/cross-coupling sequence is powerful enough to synthesize biologically active natural products as well as highly fluorescent benzofuran derivatives.
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Affiliation(s)
- Kei Murakami
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502 (Japan); The Hakubi Center for Advanced Research, Kyoto University (Japan)
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43
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Jiao J, Hyodo K, Hu H, Nakajima K, Nishihara Y. Selective Synthesis of Multisubstituted Olefins Utilizing gem- and vic-Diborylated Vinylsilanes Prepared by Silylborylation of an Alkynylboronate and Diborylation of Alkynylsilanes. J Org Chem 2013; 79:285-95. [DOI: 10.1021/jo4024057] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiao Jiao
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Keita Hyodo
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Hao Hu
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kiyohiko Nakajima
- Department
of Chemistry, Aichi University of Education, Igaya, Kariya 448-8542, Japan
| | - Yasushi Nishihara
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- ACT-C, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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44
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Zhao F, Zhang YF, Wen J, Yu DG, Wei JB, Xi Z, Shi ZJ. Programmed Selective sp2 C–O Bond Activation toward Multiarylated Benzenes. Org Lett 2013; 15:3230-3. [DOI: 10.1021/ol4011757] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Fei Zhao
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Yun-Fei Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Jing Wen
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Da-Gang Yu
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Jiang-Bo Wei
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Zhenfeng Xi
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
| | - Zhang-Jie Shi
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China, Department of Chemistry, China Agricultural University, Beijing 100094, China, and College of Chemistry and Chemical Engineering, Lanzhou University, Gansu 730000, China
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45
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Ookubo Y, Wakamiya A, Yorimitsu H, Osuka A. Synthesis of a Library of Fluorescent 2-Aryl-3-trifluoromethylnaphthofurans from Naphthols by Using a Sequential Pummerer-Annulation/Cross-Coupling Strategy and their Photophysical Properties. Chemistry 2012; 18:12690-7. [DOI: 10.1002/chem.201201261] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 11/11/2022]
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46
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Matsumoto K, Shindo M. Palladium-Catalyzed Fluoride-Free Cross-Coupling of Intramolecularly Activated Alkenylsilanes and Alkenylgermanes: Synthesis of Tamoxifen as a Synthetic Application. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100627] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Okamoto N, Miwa Y, Minami H, Takeda K, Yanada R. Regio- and Stereoselective Multisubstituted Enol Ester Synthesis. J Org Chem 2011; 76:9133-8. [DOI: 10.1021/jo201609r] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noriko Okamoto
- Faculty of
Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai,
Kure, Hiroshima 737-0112, Japan
- Department of Synthetic Organic
Chemistry, Graduate School of Medical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553,
Japan
| | - Yoshihisa Miwa
- Faculty of
Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai,
Kure, Hiroshima 737-0112, Japan
| | - Hideki Minami
- Faculty of
Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai,
Kure, Hiroshima 737-0112, Japan
| | - Kei Takeda
- Department of Synthetic Organic
Chemistry, Graduate School of Medical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553,
Japan
| | - Reiko Yanada
- Faculty of
Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai,
Kure, Hiroshima 737-0112, Japan
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48
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Firth AG, Wilson K, Baumann CG, Fairlamb IJS. Interrogation of a Sonogashira cross-coupling of 8-bromoguanosine with phenylacetylene on amberlite: evidence for Pd/Cu ion binding and propagation of Pd/Cu nanoparticles. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2011; 30:168-84. [PMID: 21360413 DOI: 10.1080/15257770.2010.548844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The reactivity of Amberlite (IRA-67) base "heterogeneous" resin in Sonogashira cross-coupling of 8-bromoguanosine 1 with phenylacetylene 3 to give 2 has been examined. Both 1 and 2 coordinate to Pd and Cu ions, which explains why at equivalent catalyst loadings, the homogeneous reaction employing triethylamine base is poor yielding. X-ray photo-electron spectroscopy (XPS) has been used to probe and quantify the active nitrogen base sites of the Amberlite resin, and postreaction Pd and Cu species. The PdCl(2)(PPh(3))(2) precatalyst and CuI cocatalyst degrade to give Amberlite-supported metal nanoparticles (average size ∼2.7 nm). The guanosine product 2 formed using the Amberlite Pd/Cu catalyst system is of higher purity than reactions using a homogeneous Pd precatalyst, a prerequisite for use in biological applications.
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Affiliation(s)
- Andrew G Firth
- Department of Chemistry, University of York, Heslington, York, United Kingdom
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49
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Kenichiro Itami. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/anie.201102691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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Kenichiro Itami. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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