1
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Tao SC, Meng FC, Wang T, Zheng YL. Ni-catalyzed arylation of alkynes with organoboronic acids and aldehydes to access stereodefined allylic alcohols. Chem Sci 2023; 14:2040-2045. [PMID: 36845934 PMCID: PMC9945163 DOI: 10.1039/d2sc05894d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/19/2023] [Indexed: 01/21/2023] Open
Abstract
A new, efficient and practical method for the three-component arylative coupling of aldehydes, alkynes and arylboronic acids has been developed through nickel catalysis. This transformation provides diverse Z-selective tetrasubstituted allylic alcohols without the use of any aggressive oragnometallic nucleophiles or reductants. Moreover, benzylalcohols are viable coupling partners via oxidation state manipulation and arylative coupling in one single catalytic cycle. This reaction features a direct and flexible approach for the preparation of stereodefined arylated allylic alcohols with broad substrate scope under mild conditions. The utility of this protocol is demonstrated through the synthesis of diverse biologically active molecular derivatives.
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Affiliation(s)
- Si-Chen Tao
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology Tianjin 300384 P. R. China
| | - Fan-Cheng Meng
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology Tianjin 300384 P. R. China
| | - Tie Wang
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology Tianjin 300384 P. R. China
| | - Yan-Long Zheng
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology Tianjin 300384 P. R. China
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2
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Peng L, Zhao Y, Yang T, Tong Z, Tang Z, Orita A, Qiu R. Zirconium-Based Catalysts in Organic Synthesis. Top Curr Chem (Cham) 2022; 380:41. [PMID: 35951161 DOI: 10.1007/s41061-022-00396-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/07/2022] [Indexed: 11/30/2022]
Abstract
Zirconium is a silvery-white malleable and ductile metal at room temperature with a crustal abundance of 162 ppm. Its compounds, showing Lewis acidic behavior and high catalytic performance, have been recognized as a relatively cheap, low-toxicity, stable, green, and efficient catalysts for various important organic transformations. Commercially available inorganic zirconium chloride was widely applied as a catalyst to accelerate amination, Michael addition, and oxidation reactions. Well-designed zirconocene perfluorosulfonates can be applied in allylation, acylation, esterification, etc. N-Chelating oganozirconium complexes accelerate polymerization, hydroaminoalkylation, and CO2 fixation efficiently. In this review, the applications of both commercially available and synthesized zirconium catalysts in organic reactions in the last 5 years are highlighted. Firstly, the properties and application of zirconium and its compounds are simply introduced. After presenting the superiority of zirconium compounds, their applications as catalysts to accelerate organic transformations are classified and presented in detail. On the basis of different kinds of zirconium catalysts, organic reactions accelerated by inorganic zirconium catalysts, zirconium catalysts bearing Cp, and organozirconium catalysts without Cp are summarized, and the plausible reaction mechanisms are presented if available.
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Affiliation(s)
- Lifen Peng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.,State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.,Department of Applied Chemistry and Biotechnology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700-0005, Japan
| | - Yanting Zhao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Tianbao Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhou Tong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zilong Tang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
| | - Akihiro Orita
- Department of Applied Chemistry and Biotechnology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700-0005, Japan.
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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3
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Caprioglio D, Salamone S, Pollastro F, Minassi A. Biomimetic Approaches to the Synthesis of Natural Disesquiterpenoids: An Update. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10040677. [PMID: 33916090 PMCID: PMC8065479 DOI: 10.3390/plants10040677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
Natural disesquiterpenoids represent a small group of secondary metabolites characterized by complex molecular scaffolds and interesting pharmacological profiles. In the last decade, more than 400 new disesquiterpenoids have been discovered and fully characterized, pointing out once more the "magic touch" of nature in the design of new compounds. The perfect blend of complex and unique architectures and biological activity has made sesquiterpene dimers an attractive and challenging synthetic target, inspiring organic chemists to find new and biomimetic approaches to replicate the efficiency and the selectivity of natural processes under laboratory conditions. In this work, we present a review covering the literature from 2010 to 2020 reporting all the efforts made in the total synthesis of complex natural disesquiterpenoids.
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Affiliation(s)
- Diego Caprioglio
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, L.go Donegani 2/3, 28100 Novara, Italy; (D.C.); (S.S.); (F.P.)
| | - Stefano Salamone
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, L.go Donegani 2/3, 28100 Novara, Italy; (D.C.); (S.S.); (F.P.)
| | - Federica Pollastro
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, L.go Donegani 2/3, 28100 Novara, Italy; (D.C.); (S.S.); (F.P.)
- PlantaChem srls, via Canobio 4/6, 28100 Novara, Italy
| | - Alberto Minassi
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, L.go Donegani 2/3, 28100 Novara, Italy; (D.C.); (S.S.); (F.P.)
- PlantaChem srls, via Canobio 4/6, 28100 Novara, Italy
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4
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Xu L, Zhu S, Huo L, Chen F, Yu W, Chu L. Radical 1,2-addition of bromoarenes to alkynes via dual photoredox and nickel catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00365h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A 1,2-addition of aryl bromides to alkynes enabled by the photocatalytic generation of bromine radicals via photoredox and nickel catalysis is reported.
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Affiliation(s)
- Lei Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Liping Huo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Fan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Wei Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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5
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Qiu YF, Lu B, Yan YY, Luo WY, Gao ZQ, Wang J. A convenient synthesis of 1,4-benzoquinones. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819841806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of 1,4-benzoquinones was prepared in a high yield by a two-step reaction starting from 2,3,4,5-tetramethoxytoluene by a Blanc reaction and subsequent oxidation.
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Affiliation(s)
- Yong-Fu Qiu
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Bin Lu
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Yi-Yu Yan
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Wan-Yue Luo
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Zhen-Qiu Gao
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Jin Wang
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
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6
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Chan YY, Wang CY, Hwang TL, Juang SH, Hung HY, Kuo PC, Chen PJ, Wu TS. The Constituents of the Stems of Cissus assamica and Their Bioactivities. Molecules 2018; 23:E2799. [PMID: 30373325 PMCID: PMC6278371 DOI: 10.3390/molecules23112799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 11/20/2022] Open
Abstract
Fifty-five compounds were isolated from the fresh stems of Cissus assamica, including 14 benzenoids, 11 triterpenes, nine steroids, five tocopherols, five chlorophylls, four flavonoids, two benzoquinones, two tannins, and three other compounds. Their structures were constructed by 1D and 2D nuclear magnetic resonance (NMR) and mass spectral data, and were also identified by a comparison of their spectral data with those reported in the literature. Among these isolates, 1,2-bis-(5--tocopheryl) ethane (51) was reported for the first time from natural sources. Some purified compounds were examined for their anti-inflammatory and anticancer bioactivities. The results indicated that betulinic acid (16) exhibited strong inhibition of superoxide anion generation with IC50 value of 0.2 ± 0.1 μM, while betulinic acid (16) and pheophytin-a (47) inhibited elastase release with IC50 value of 2.7 ± 0.3 and 5.3 ± 1.0 μM, respectively. In addition, betulinic acid (16) and epi-glut-5(6)-en-ol (18) exhibited potential cytotoxicity to non-small-cell lung carcinoma (NCI-H226) and colon cancer (HCT-116) cell lines with IC50 values in the range of 1.6 to 9.1 μM.
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Affiliation(s)
- Yu-Yi Chan
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Chiu-Yuan Wang
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Shin-Hun Juang
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung 433, Taiwan.
| | - Tian-Shung Wu
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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7
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Ranjith Kumar G, Kumar R, Rajesh M, Sridhar Reddy M. A nickel-catalyzed anti-carbometallative cyclization of alkyne–azides with organoboronic acids: synthesis of 2,3-diarylquinolines. Chem Commun (Camb) 2018; 54:759-762. [DOI: 10.1039/c7cc08408k] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anti-carbonickelative cyclization via reversible alkenylnickel E/Z isomerization of 2-azido phenyl propargyl alcohols with aryl boronic acids is achieved using Ni(acac)2 as the catalyst to access 2,3-diaryl quinolines.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ravi Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Manda Rajesh
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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8
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Yan X, Xi C. Advances in transmetalation reactions originated from organozirconium compounds. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Sugiyama N, Ohseki M, Kobayashi R, Sekine K, Saito K, Yamada T. Silver-catalyzed Three-component Reaction of Propargylic Amines, Carbon Dioxide, and N-Bromosuccinimide for Stereoselective Preparation of (E)-Bromovinyloxazolidinones. CHEM LETT 2017. [DOI: 10.1246/cl.170541] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Nao Sugiyama
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Masatoshi Ohseki
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Ryo Kobayashi
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Kohei Sekine
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Kodai Saito
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Tohru Yamada
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
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10
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Boerth JA, Ellman JA. A Convergent Synthesis of Functionalized Alkenyl Halides through Cobalt(III)-Catalyzed Three-Component C-H Bond Addition. Angew Chem Int Ed Engl 2017; 56:9976-9980. [PMID: 28657674 PMCID: PMC5568819 DOI: 10.1002/anie.201705817] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Indexed: 11/11/2022]
Abstract
A CoIII -catalyzed three-component coupling of C(sp2 )-H bonds, alkynes, and halogenating agents to give alkenyl halides is reported. This transformation proceeds with high regio- and diastereoselectivity, and is effective for a broad range of aryl and alkyl terminal alkynes. Diverse C-H bond partners also exhibit good reactivity for a range of heteroaryl and aryl systems as well as synthetically useful secondary and tertiary amide, urea, and pyrazole directing groups. This multicomponent transformation is also compatible with allenes in place of alkynes to furnish tetrasubstituted alkenyl halides, showcasing the first halo-arylation of allenes.
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Affiliation(s)
- Jeffrey A Boerth
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06520, USA
| | - Jonathan A Ellman
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06520, USA
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11
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Boerth JA, Ellman JA. A Convergent Synthesis of Functionalized Alkenyl Halides through Cobalt(III)‐Catalyzed Three‐Component C−H Bond Addition. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705817] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jeffrey A. Boerth
- Department of ChemistryYale University 225 Prospect St. New Haven CT 06520 USA
| | - Jonathan A. Ellman
- Department of ChemistryYale University 225 Prospect St. New Haven CT 06520 USA
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12
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Mun B, Kim S, Yoon H, Kim KH, Lee Y. Total Synthesis of Isohericerin, Isohericenone, and Erinacerin A: Development of a Copper-Catalyzed Methylboronation of Terminal Alkynes. J Org Chem 2017; 82:6349-6357. [DOI: 10.1021/acs.joc.7b00920] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bohyun Mun
- Department
of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Sangyong Kim
- Department
of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Hongju Yoon
- Department
of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Ki Hyun Kim
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yunmi Lee
- Department
of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
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13
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Abstract
Synthetic organic chemists have a long-standing appreciation for transition metal cyclopentadienyl complexes, of which many have been used as catalysts for organic transformations. Much less well known are the contributions of the benzo-fused relative of the cyclopentadienyl ligand, the indenyl ligand, whose unique properties have in many cases imparted differential reactivity in catalytic processes toward the synthesis of small molecules. In this Review, we present examples of indenylmetal complexes in catalysis and compare their reactivity to their cyclopentadienyl analogues, wherever possible.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA, 94305-5080, USA
| | - Michael C Ryan
- Department of Chemistry, Stanford University, Stanford, CA, 94305-5080, USA
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14
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Affiliation(s)
- Shubhendu Dhara
- Schulich Faculty of Chemistry; Technion - Israel Institute of Technology; 3200003 Haifa Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry; Technion - Israel Institute of Technology; 3200003 Haifa Israel
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15
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Affiliation(s)
- Barry M. Trost
- Department of Chemistry Stanford University Stanford CA 94305-5080 USA
| | - Michael C. Ryan
- Department of Chemistry Stanford University Stanford CA 94305-5080 USA
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16
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Shinada T. Chemistry of New Insect Juvenile Hormone: Structure Determination, Structure-activity Relationship Study, and Synthesis. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Ehle AR, Morris MG, Klebon BD, Yap GPA, Watson MP. Stereoselective Synthesis of Trisubstituted Vinyl Bromides by Addition of Alkynes to Oxocarbenium Ions. Synlett 2015; 26:2702-2706. [PMID: 27482143 PMCID: PMC4961304 DOI: 10.1055/s-0035-1560265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We have developed an efficient method for the synthesis of (E)-trisubstituted vinyl bromides via a Friedel-Crafts-type addition of alkynes to oxocarbenium ions formed in situ from acetals. The success of this reaction relies on identification of MgBr2·OEt2 as both a Lewis acid promoter and bromide source. This reaction employs simple, inexpensive starting materials and proceeds under mild conditions to allow the preparation of a range of vinyl bromide products in high yields and E:Z selectivities. Furthermore, the vinyl bromide products also contain an allylic ether functional group. Both the vinyl bromide and allylic ether are effective handles for the elaboration of these useful synthetic intermediates.
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Affiliation(s)
- Andrew R. Ehle
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Melissa G. Morris
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Bryan D. Klebon
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Glenn P. A. Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Mary P. Watson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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18
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Zhang L, Sun L, Li YY, Liu Y, Yang YX, Yuan R, Wang P, Da CS. Catalytic Asymmetric Arylation of Enals to Enantioenriched Linear Trisubstituted Allylic Secondary Alcohols by using Aryl Lithiums Generated In Situ from Aryl Bromides. ChemCatChem 2013. [DOI: 10.1002/cctc.201300655] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Biradar DB, Gau HM. An efficient nickel-catalyzed alkenylation of functionalized benzylic halides with alkenylaluminum reagents. Org Biomol Chem 2012; 10:4243-8. [DOI: 10.1039/c2ob25303h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Zirconium-catalyzed chemoselective methylalumination of ethers, amines, and sulfides bearing two terminal alkenyl groups. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.12.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Wang J, Yang J, Yang B, Sun JQ, Yang T. Alternative Synthesis of 5-Chloromethyl-2,3-Dimethoxy-6-Methyl-1,4-Benzoquinone: A Key Intermediate for Preparing Coenzyme Q Analogues. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12857507693464] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The title compound, a key intermediate for preparing Coenzyme Qn family, was prepared in high yield by a reaction sequence starting from the commercially available 3, 4, 5-trimethoxy-benzadehyde via Wolff–Kishner reduction, Vilsmeier–Haack reaction, Blanc chloromethylation reaction, Dakin reaction and oxidation.
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Affiliation(s)
- Jin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, P. R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, P. R. China
| | - Jia-Qiang Sun
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, P. R. China
| | - Tao Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, P. R. China
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22
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Fotsop DF, Roussi F, Leverrier A, Bretéché A, Guéritte F. Biomimetic Total Synthesis of Meiogynin A, an Inhibitor of Bcl-xL and Bak Interaction. J Org Chem 2010; 75:7412-5. [DOI: 10.1021/jo101088h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Dalia Fomekong Fotsop
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, 1, avenue de la terrasse, 91198 Gif sur Yvette, France
| | - Fanny Roussi
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, 1, avenue de la terrasse, 91198 Gif sur Yvette, France
| | - Aurélie Leverrier
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, 1, avenue de la terrasse, 91198 Gif sur Yvette, France
| | - Anne Bretéché
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, 1, avenue de la terrasse, 91198 Gif sur Yvette, France
| | - Françoise Guéritte
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, UPR 2301, 1, avenue de la terrasse, 91198 Gif sur Yvette, France
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Xie M, Lin G, Zhang J, Li M, Feng C. Regio- and stereoselective synthesis of tetrasubstituted allylic alcohols by three-component reaction of acetylenic sulfone, dialkylzinc, and aldehyde. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.01.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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24
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Mahapatra S, Carter RG. Efficient synthesis of the C(7)-C(20) subunit of amphidinolides C and F. Org Biomol Chem 2009; 7:4582-5. [PMID: 19865690 DOI: 10.1039/b916744g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of the C(7)-C(20) subunit of amphidinolides C and F has been accomplished utilizing a Me(3)Al-mediated ring opening of a vinyl iodide/allylic epoxide to establish the C(12,13)anti stereochemistry, an organolithium coupling/olefination sequence to construct the C(9)-C(11) diene moiety and a sulfone alkylation/hydroxylation strategy to join the C(7)-C(14) and C(15)-C(20) fragments.
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Affiliation(s)
- Subham Mahapatra
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA
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25
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Hirata Y, Yukawa T, Kashihara N, Nakao Y, Hiyama T. Nickel-Catalyzed Carbocyanation of Alkynes with Allyl Cyanides. J Am Chem Soc 2009; 131:10964-73. [DOI: 10.1021/ja901374v] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yasuhiro Hirata
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Tomoya Yukawa
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Natsuko Kashihara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Tamejiro Hiyama
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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26
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Mark S, Gaidzik N, Doye S, Enders M. Organochromium complexes as catalysts for the carboalumination of unactivated terminal olefins. Dalton Trans 2009:4875-7. [DOI: 10.1039/b902609f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Li HH, Jin YH, Wang JQ, Tian SK. Controllable stereoselective synthesis of trisubstituted alkenes by a catalytic three-component reaction of terminal alkynes, benzylic alcohols, and simple arenes. Org Biomol Chem 2009; 7:3219-21. [DOI: 10.1039/b911954j] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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DeBergh JR, Spivey KM, Ready JM. Preparation of substituted enol derivatives from terminal alkynes and their synthetic utility. J Am Chem Soc 2008; 130:7828-9. [PMID: 18517202 DOI: 10.1021/ja803480b] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Stereodefined enol derivatives of aldehydes are prepared from terminal alkynes. Specifically, terminal alkynes are known to undergo Cp2ZrCl2-catalyzed methylalumination. Here, we show that the resultant vinylalanes can be oxygenated with peroxyzinc species to generate trisubstituted enolates. Electrophilic trapping with carboxylic anydrides or silyl triflates yields trisubstituted enol esters or silanes, respectively. The tandem carbometalation/oxygenation tolerates free and protected alcohols, heterocycles, olefins, and nitriles. Stereodefined enol esters can undergo asymmetric dihydroxylation to yield optically active alpha-hydroxy aldehydes. Reduction with NaBH4 provides the diols of 1,1-disubstituted olefins in excellent ee. An application of this methodology to the enantioselective synthesis of the insect pheromone frontalin is presented. Finally, alpha-hydroxy aldehydes are shown to undergo homologation to a terminal alkyne, reductive amination, oxidation and olefination. Preliminary results indicate that tandem carbometalation/amination can be accomplished with azodicarboxylates. In this way, ene-hydrazines are formed in excellent yield.
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Affiliation(s)
- John R DeBergh
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390-9038, USA
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29
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Butler TA, Swift EC, Lipshutz BH. Heterogeneous catalysis with nickel-on-graphite (Ni/Cg). Org Biomol Chem 2008; 6:19-25. [DOI: 10.1039/b714600k] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Wang G, Zhu G, Negishi EI. Zirconium-catalyzed methylalumination of heterosubstituted arylethynes. Factors affecting the regio-, stereo-, and chemoselectivities. J Organomet Chem 2007; 692:4731-4736. [PMID: 19746204 PMCID: PMC2739592 DOI: 10.1016/j.jorganchem.2007.05.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The Zr-catalyzed methylalumination of heterosubstituted arylethynes containing O, S, Cl, and Si can proceed in high yields (>70%) and in a highly regio- and stereoselective manner (≥98-99%), although SO(2)Ph, Br, and Cl in a benzylic position present serious chemoselectivity-related problems. The low regioselectivity of 60% initially observed with o-ethynylphenol (1a) has been elevated to ≥98% through the use of either a catalytic amount of Zr(ebi)Cl(2) or Zr(2-Me-Ind)(2)Cl(2) or, more conveniently, the stoichiometric amount of ZrCp(2)Cl(2), ZrCp(2)MeCl, or ZrCp(2)Me(2) in conjunction with the use of a deficient amount (0.9 molar equivalent) of I(2) for subsequent iodinolysis.
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Affiliation(s)
- Guangwei Wang
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, Indiana 47907-2084, USA
| | - Gangguo Zhu
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, Indiana 47907-2084, USA
| | - Ei-ichi Negishi
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, Indiana 47907-2084, USA
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31
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Lipshutz BH, Butler T, Lower A, Servesko J. Enhancing Regiocontrol in Carboaluminations of Terminal Alkynes. Application to the One-Pot Synthesis of Coenzyme Q10. Org Lett 2007; 9:3737-40. [PMID: 17705500 DOI: 10.1021/ol701469e] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new "generations" of methodological advances are reported for the Negishi carboalumination of terminal alkynes. Use of simple, inexpensive additives that alter the Al-Zr complex formed between Me(3)Al and Cp(2)ZrCl(2) give rise to an especially effective reagent mix that results in virtually complete control of regiochemistry upon carboalumination of 1-alkynes. One timely application to coenzyme Q10 is highlighted. Regioisomers from subsequent coupling, which would otherwise be very difficult to separate, are avoided.
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Affiliation(s)
- Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
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