1
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Dey S, Charlack AD, Durham AC, Zhu J, Wang Y, Wang YM. Synthesis of 1,3-Enynes by Iron-Catalyzed Propargylic C-H Functionalization: An Alkyne Analogue for the Eschenmoser Methenylation. Org Lett 2024; 26:3355-3360. [PMID: 38604973 PMCID: PMC11059102 DOI: 10.1021/acs.orglett.4c00696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/13/2024]
Abstract
A two-step protocol for the conversion of alkyl-substituted alkynes to 1,3-enynes is reported. In this α-methenylation process, an iron-catalyzed propargylic C-H functionalization delivers tetramethylpiperidine-derived homopropargylic amines which undergo facile Cope elimination upon N-oxidation to afford the enyne products. A range of aryl alkyl and dialkyl acetylenes were found to be suitable substrates for this process, which constitutes an alkyne analogue for the Eschenmoser methenylation of carbonyl derivatives. In addition, a new bench-stable precatalyst for iron-catalyzed propargylic C-H functionalization is reported.
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Affiliation(s)
- Shalini Dey
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Aaron D. Charlack
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Austin C. Durham
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jin Zhu
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Yidong Wang
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
- School
of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Yi-Ming Wang
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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2
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Pati SS, Mishra A, Das JP. Regio- and Stereocontrolled Hydrohalogenation of Ynamides with N-Halosuccinimides (NXS) as the Halogen Source: Synthesis of ( E)-α-Haloenamides. J Org Chem 2024; 89:1727-1735. [PMID: 38237061 DOI: 10.1021/acs.joc.3c02436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Presented herein is a facile stereoselective construction of synthetically versatile chiral and achiral (E)-α-haloenamides under mild conditions utilizing N-halosuccinimides and diphenylphosphine oxide. This reaction is metal-free, mild, efficient, very rapid, and practical and highlights the synthetic versatility of ynamides. The reaction has a broad substrate scope; both chiral and achiral ynamides have been transformed into the corresponding (E)-α-haloenamides within a very short period of time without compromising selectivity or complexity.
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Affiliation(s)
- Subhransu S Pati
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, Ravenshaw University, Cuttack 753003, India
| | - Archana Mishra
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, Ravenshaw University, Cuttack 753003, India
| | - Jaya P Das
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, Ravenshaw University, Cuttack 753003, India
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3
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Zhang Y, Guo H, Wu Q, Bi X, Shi E, Xiao J. Stereoselective synthesis of ( E)-α,β-unsaturated esters: triethylamine-catalyzed allylic rearrangement of enol phosphates. RSC Adv 2023; 13:13511-13515. [PMID: 37181505 PMCID: PMC10173029 DOI: 10.1039/d3ra02430j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023] Open
Abstract
α,β-Unsaturated esters are key structural motifs widely distributed in various biologically active molecules, and their Z/E-stereoselective synthesis has always been considered highly attractive in organic synthesis. Herein, we present a >99% (E)-stereoselective one-pot synthetic approach towards β-phosphoroxylated α,β-unsaturated esters via a mild trimethylamine-catalyzed 1,3-hydrogen migration of the corresponding unconjugated intermediates derived from the solvent-free Perkow reaction between low-cost 4-chloroacetoacetates and phosphites. Versatile β,β-disubstituted (E)-α,β-unsaturated esters were thus afforded with full (E)-stereoretentivity by cleavage of the phosphoenol linkage via Negishi cross-coupling. Moreover, a stereoretentive (E)-rich mixture of a α,β-unsaturated ester derived from 2-chloroacetoacetate was obtained and both isomers were easily afforded in one operation.
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Affiliation(s)
- Yulong Zhang
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Huichuang Guo
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Qian Wu
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Enxue Shi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Junhua Xiao
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
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4
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Horbaczewskyj CS, Fairlamb IJS. Pd-Catalyzed Cross-Couplings: On the Importance of the Catalyst Quantity Descriptors, mol % and ppm. Org Process Res Dev 2022; 26:2240-2269. [PMID: 36032362 PMCID: PMC9396667 DOI: 10.1021/acs.oprd.2c00051] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 12/26/2022]
Abstract
![]()
This Review examines parts per million (ppm) palladium
concentrations
in catalytic cross-coupling reactions and their relationship with
mole percentage (mol %). Most studies in catalytic cross-coupling
chemistry have historically focused on the concentration ratio between
(pre)catalyst and the limiting reagent (substrate), expressed as mol
%. Several recent papers have outlined the use of “ppm level”
palladium as an alternative means of describing catalytic cross-coupling
reaction systems. This led us to delve deeper into the literature
to assess whether “ppm level” palladium is a practically
useful descriptor of catalyst quantities in palladium-catalyzed cross-coupling
reactions. Indeed, we conjectured that many reactions could, unknowingly,
have employed low “ppm levels” of palladium (pre)catalyst,
and generally, what would the spread of ppm palladium look like across
a selection of studies reported across the vast array of the cross-coupling
chemistry literature. In a few selected examples, we have examined
other metal catalyst systems for comparison with palladium.
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Affiliation(s)
| | - Ian J. S. Fairlamb
- University of York, Heslington, York, North Yorkshire, YO10 5DD, United Kingdom
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5
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Yokose D, Nagashima Y, Kinoshita S, Nogami J, Tanaka K. Enantioselective Synthesis of Axially Chiral Styrene‐Carboxylic Esters by Rhodium‐Catalyzed Chelation‐Controlled [2+2+2] Cycloaddition. Angew Chem Int Ed Engl 2022; 61:e202202542. [DOI: 10.1002/anie.202202542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Daisuke Yokose
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Suzuka Kinoshita
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Juntaro Nogami
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
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6
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Yokose D, Nagashima Y, Kinoshita S, Nogami J, Tanaka K. Enantioselective Synthesis of Axially Chiral Styrene‐Carboxylic Esters by Rhodium‐Catalyzed Chelation‐Controlled [2+2+2] Cycloaddition. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daisuke Yokose
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Suzuka Kinoshita
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Juntaro Nogami
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
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7
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Ubba E, Nawaz Khan FR, Teja C, Dalavai R. One Pot Sequential Aldol condensation - Michael Addition – Sonogashira, and Heck Arylation toward Highly Functionalized Quinolines. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2039225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Eethamukkala Ubba
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology,, Vellore, India
| | - Fazlur-Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology,, Vellore, India
| | - Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology,, Vellore, India
| | - Ramesh Dalavai
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology,, Vellore, India
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8
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Liu T, Liu Y, Guo W. Alkynyl-induced construction of stereodefined polysubstituted conjugated enynes via Pd-catalyzed allylic arylations. Org Chem Front 2022. [DOI: 10.1039/d2qo00511e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The alkynyl-induced construction of polysubstituted conjugated enynes with exclusive (Z)-configurations via Pd-catalyzed allylic arylations is described.
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Affiliation(s)
- Teng Liu
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
| | - Yin Liu
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
| | - Wusheng Guo
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
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9
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Kong Y, Cao T, Zhu S. TEMPO‐Regulated
Regio‐ and Stereoselective
Cross‐Dihalogenation
with Dual Electrophilic X
+
Reagents. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yi Kong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou Guangdong 510640 China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou Guangdong 510640 China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou Guangdong 510640 China
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10
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Lei YR, Liang JY, Wang YJ, Chen Z. Preparation of vincinal hetero 1,2-dihalo-olefins by using aqueous hydrohalic acid. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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11
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Puli VS, Subburu M, Bhongiri Y, Tripathi A, Prasad K, Chatterjee A, Pola S, Chetti P. New Indolo[3,2-b]indole based small organic molecules for Organic Thin Film Transistors (OTFTs): A combined experimental and DFT Study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129491] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Ashida Y, Tanabe Y. Stereocomplementary and Parallel Syntheses of Multi-Substituted (E)-, (Z)-Stereodefined α,β-Unsaturated Esters: Application to Drug Syntheses. CHEM REC 2020; 20:1410-1429. [PMID: 32931154 DOI: 10.1002/tcr.202000076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022]
Abstract
Ubiquitous α,β-unsaturated esters are well recognized as key structural olefin scaffolds in organic chemistry. (E)- and (Z)-steroselectivity is the most critical issue in their synthesis, however, (E)- and (Z)- stereocomplementary synthetic methods remain quite limited. The present account discloses general (E)-, (Z)-stereocomplementary syntheses of a variety of α,β-unsaturated esters from highly accessible (E)-, (Z)-stereodefined enol tosylates derived from β-ketoesters and α-formyl esters. Step 1 toward the stereocomplementary preparation of (E)-, (Z)-stereodefined enol tosylates is implemented by using inexpensive reagents under mild reaction conditions. Step 2 toward the highly stereoretentive synthesis of (E)- and (Z)-stereodefined α,β-unsaturated esters involves Suzuki-Miyaura, Negishi, Sonogashira, Iron-catalyzed, Mizoroki-Heck, and Buchwald-Hartwig cross-coupling reactions. Notably, this strategy was successfully applied for parallel drug syntheses of (E)- and (Z)-zimelidine, (E)- and (Z)-tamoxifen, and Merck's cyclopropane pharmacophore. Representative successful utilizations by other groups are also introduced.
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Affiliation(s)
- Yuichiro Ashida
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo, 669-1337, Japan
| | - Yoo Tanabe
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo, 669-1337, Japan
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13
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Zeng X, Liu S, Yang Y, Yang Y, Hammond GB, Xu B. Regio- and Stereoselective Synthesis of 1,2-Dihaloalkenes Using In-Situ-Generated ICl, IBr, BrCl, I2, and Br2. Chem 2020; 6:1018-1031. [PMID: 32685767 DOI: 10.1016/j.chempr.2020.03.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We describe a catalyst-free 1,2-trans-dihalogenation of alkynes with an unprecedented substrate scope and exclusive regio- and stereoselectivity. This versatile dihalogenation system-a combination of NX1S electrophile and alkali metal halide (MX2) in acetic acid-is applicable for diverse categories of alkynes (electron-rich or poor alkynes, internal and terminal alkynes, or heteroatoms such as O-, N-, S-substituted alkynes). The hydrogen bonding donor solvent acetic acid is essential for the in-situ generation of X1X2 electrophile, including ICl, IBr, BrCl, I2, and Br2.
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Affiliation(s)
- Xiaojun Zeng
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Yuhao Yang
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Yi Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA.,Lead Contact
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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14
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Ashida Y, Nakata K, Yoshitake D, Sato Y, Miyazaki Y, Tanabe Y. (
E
)‐,(
Z
)‐Stereodefined α‐Chloro‐β‐tosyloxy‐α,β‐unsaturated Esters: Sequential Cross‐Couplings for (
E
)‐,(
Z
)‐Stereo Complementary Synthesis of Fully‐Substituted α,β‐Unsaturated Esters. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuichiro Ashida
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Kohei Nakata
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Daisuke Yoshitake
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Yuka Sato
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Yukie Miyazaki
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Yoo Tanabe
- Department of Chemistry School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
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15
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Yu P, Bismuto A, Morandi B. Iridium-Catalyzed Hydrochlorination and Hydrobromination of Alkynes by Shuttle Catalysis. Angew Chem Int Ed Engl 2020; 59:2904-2910. [PMID: 31769578 PMCID: PMC7028031 DOI: 10.1002/anie.201912803] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Indexed: 11/20/2022]
Abstract
Described herein are two different methods for the synthesis of vinyl halides by a shuttle catalysis based iridium-catalyzed transfer hydrohalogenation of unactivated alkynes. The use of 4-chlorobutan-2-one or tert-butyl halide as donors of hydrogen halides allows this transformation in the absence of corrosive reagents, such as hydrogen halides or acid chlorides, thus largely improving the functional-group tolerance and safety profile of these reactions compared to the state-of-the-art. This method has granted access to alkenyl halide compounds containing acid-sensitive groups, such as tertiary alcohols, silyl ethers, and acetals. The synthetic value of those methodologies has been demonstrated by gram-scale synthesis where low catalyst loading was achieved.
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Affiliation(s)
- Peng Yu
- Laboratorium für Organische Chemie ETH ZürichVladimir-Prelog-Weg 3, HCI8093ZürichSwitzerland
- Max-Planck-Institut für KohlenforschungKaiser-Wihelm-Platz 145470Mülheim an der RuhrGermany
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie ETH ZürichVladimir-Prelog-Weg 3, HCI8093ZürichSwitzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH ZürichVladimir-Prelog-Weg 3, HCI8093ZürichSwitzerland
- Max-Planck-Institut für KohlenforschungKaiser-Wihelm-Platz 145470Mülheim an der RuhrGermany
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16
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Yu P, Bismuto A, Morandi B. Iridium‐katalysierte Hydrochlorierung und Hydrobromierung von Alkinen durch Shuttlekatalyse. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peng Yu
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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17
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Li J, Devi Laishram R, Chen J, Xu D, Shi G, Lv H, Fan R, Fan B. Regioselective Hydroiodination of Alkynes by in situ‐Generated HI. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiayan Li
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Ronibala Devi Laishram
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Dandan Xu
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Guangrui Shi
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Haiping Lv
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Ruifeng Fan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yunnan, Kunming 650500 China
- School of Chemistry and EnvironmentYunnan Minzu University Yunnan, Kunming 650500 China
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18
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Zhang Y, Xu J, Guo H. Light-Induced Intramolecular Iodine-Atom Transfer Radical Addition of Alkyne: An Approach from Aryl Iodide to Alkenyl Iodide. Org Lett 2019; 21:9133-9137. [DOI: 10.1021/acs.orglett.9b03519] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China
| | - Jincheng Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China
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19
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Wu J, Deng X, Yoshikai N. Stereocontrolled Synthesis of Halovinylbenziodoxoles by Hydro- and Iodochlorination of Ethynylbenziodoxoles. Chemistry 2019; 25:7839-7842. [PMID: 31020740 DOI: 10.1002/chem.201901543] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/23/2019] [Indexed: 12/12/2022]
Abstract
We report herein the synthesis of highly substituted and stereochemically well-defined vinylbenziodoxole (VBX) derivatives through hydrochlorination and iodochlorination of ethynylbenziodoxoles. The hydrochlorination is achieved using pyridine hydrochloride as an HCl source in an anti-fashion under mild, open-air conditions to afford a 2-chlorinated VBX product, which serves as a useful building block for the stereoselective synthesis of trisubstituted alkenes. Meanwhile, iodochlorination with iodine monochloride proceeds in an unusual syn-pathway, stereoselectively affording a tetrasubstituted VBX derivative.
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Affiliation(s)
- Junliang Wu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.,College of Chemistry and Molecular Engineering, Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Xiaozhou Deng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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20
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Lin EE, Wu JQ, Schäfers F, Su XX, Wang KF, Li JL, Chen Y, Zhao X, Ti H, Li Q, Ou TM, Glorius F, Wang H. Regio- and stereoselective synthesis of tetra- and triarylethenes by N-methylimidodiacetyl boron-directed palladium-catalysed three-component coupling. Commun Chem 2019. [DOI: 10.1038/s42004-019-0137-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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21
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Fujii Y, Tamura Y, Hashimoto N, Endo N, Iwasawa T. Stereo‐Defined Synthetic Route to (
E
)‐ and (
Z
)‐Tamoxifen Derived from(
E
)‐1‐Bromo‐2‐iodoalkenes. ChemistrySelect 2019. [DOI: 10.1002/slct.201900324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoshino Fujii
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Yuka Tamura
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Nako Hashimoto
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Naoki Endo
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Tetsuo Iwasawa
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
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22
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Galster M, Löppenberg M, Galla F, Börgel F, Agoglitta O, Kirchmair J, Holl R. Phenylethylene glycol-derived LpxC inhibitors with diverse Zn2+-binding groups. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Kumar R, Singh RM. Metal-free POCl3 promoted stereoselective hydrochlorination of ethynylated azaheterocycles. Org Biomol Chem 2019; 17:5990-5996. [DOI: 10.1039/c9ob00841a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient stereoselective hydrochlorination of ethynylated azaheterocycles was achieved using POCl3 as a chlorinating agent under metal-free reaction conditions.
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Affiliation(s)
- Ritush Kumar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
- Department of Chemistry
- Institute of Science
| | - Radhey M. Singh
- Department of Chemistry
- Institute of Science
- Centre of Advanced Study
- Banaras Hindu University
- Varanasi-221005
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24
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Wang XD, Wu JJ, Sun X, Yang WC, Zhu J, Wu L. Allenylphosphine Oxides as Starting Materials for the Synthesis of Conjugated Enynes: Boosting the Catalytic Performance by MOF Encapsulated Palladium Nanoparticles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800486] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiao-Dong Wang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Jin-Jin Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Xue Sun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Wen-Chao Yang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Jie Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
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25
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Cao W, Chen P, Wang L, Wen H, Liu Y, Wang W, Tang Y. A Highly Regio- and Stereoselective Syntheses of α-Halo Enamides, Vinyl Thioethers, and Vinyl Ethers with Aqueous Hydrogen Halide in Two-Phase Systems. Org Lett 2018; 20:4507-4511. [PMID: 30004711 DOI: 10.1021/acs.orglett.8b01809] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free regio- and stereoselective method is achieved for the preparation of ( E)-configured α-halo enamides, vinyl thioethers, and vinyl ethers using aqueous HX (X = F, Cl, Br, I), which features high functional group compatibility and regio- and stereoselectivity, mild conditions, high efficiency, and rapid transformation. Additionally, the isomers could be yielded readily from the ( E)-configured α-halo enamides via photocatalysis or under Sonogashira coupling conditions.
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Affiliation(s)
- Wei Cao
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China
| | - Ping Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , P. R. China
| | - Hao Wen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China
| | - Yu Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China
| | - Wanshu Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China
| | - Yu Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Yushan Road , Qingdao 266003 , P. R. China.,Laboratory for Marine Drugs and Bioproducts Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237 , P. R. China
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26
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Ye C, Qian B, Li Y, Su M, Li D, Bao H. Iron-Catalyzed Dehydrative Alkylation of Propargyl Alcohol with Alkyl Peroxides To Form Substituted 1,3-Enynes. Org Lett 2018; 20:3202-3205. [PMID: 29786445 DOI: 10.1021/acs.orglett.8b01043] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This paper reports a new method for the generation of substituted 1,3-enynes, whose synthesis by other methods could be a challenge. The dehydrative decarboxylative cascade coupling reaction of propargyl alcohol with alkyl peroxides is enabled by an iron catalyst and alkylating reagents. Primary, secondary, and tertiary alkyl groups can be introduced into 1,3-enynes, affording various substituted 1,3-enynes in moderate to good yields. Mechanistic studies suggest the involvement of a radical-polar crossover pathway.
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Affiliation(s)
- Changqing Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. China.,University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Bo Qian
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. China
| | - Min Su
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. China.,University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
| | - Daliang Li
- Biomedical Research Center of South China & College of Life Science , Fujian Normal University , No. 1 Keji Road, Shangjie , Fuzhou , Fujian 350117 , P. R. China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Center for Excellence in Molecular Synthesis, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. China.,University of Chinese Academy of Sciences , Beijing , 100049 , P. R. China
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27
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Zhao Z, Murphy GK. Chlorination of phenylallene derivatives with 1-chloro-1,2-benziodoxol-3-one: synthesis of vicinal-dichlorides and chlorodienes. Beilstein J Org Chem 2018; 14:796-802. [PMID: 29719576 PMCID: PMC5905278 DOI: 10.3762/bjoc.14.67] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 03/22/2018] [Indexed: 11/23/2022] Open
Abstract
Allyl and vinyl chlorides represent important structural motifs in organic chemistry. Herein is described the chemoselective and regioselective reaction of aryl- and α-substituted phenylallenes with the hypervalent iodine (HVI) reagent 1-chloro-1,2-benziodoxol-3-one. The reaction typically results in vicinal dichlorides, except with proton-containing α-alkyl substituents, which instead give chlorinated dienes as the major product. Experimental evidence suggests that a radical mechanism is involved.
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Affiliation(s)
- Zhensheng Zhao
- Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, N2L3G1, ON, Canada
| | - Graham K Murphy
- Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, N2L3G1, ON, Canada
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28
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Zeng X, Liu S, Hammond GB, Xu B. Hydrogen-Bonding-Assisted Brønsted Acid and Gold Catalysis: Access to Both ( E)- and ( Z)-1,2-Haloalkenes via Hydrochlorination of Haloalkynes. ACS Catal 2018; 8:904-909. [PMID: 30410816 PMCID: PMC6207084 DOI: 10.1021/acscatal.7b03563] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/10/2017] [Indexed: 12/23/2022]
Abstract
![]()
We
have developed an efficient synthesis of both (Z)-
and (E)-chlorohaloalkenes via hydrochlorination
of haloalkynes, based on two distinct hydrogen-bond-network-assisted
catalytic systems: Brønsted acid catalysis and gold catalysis.
Both systems offer high stereoselectivity, good chemical yields, and
diverse functional group tolerance.
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Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Gerald B. Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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29
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Maji B, Bhattacharya A, Hazra S. Halogen-Induced Friedel-Crafts Alkenylation Reactions with Haloalkynes: Direct Access to gem
-1, 1-Dihaloalkenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201702265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Biswajit Maji
- Department of Chemistry; Indira Gandhi National Tribal University; Amarkantak, Madhya Pradesh India
| | - Aditya Bhattacharya
- Department of Chemistry; Indira Gandhi National Tribal University; Amarkantak, Madhya Pradesh India
| | - Sunit Hazra
- Centre for Applied Chemistry; Central University of Jharkhand, Brambe; Ranchi, Jharkhand - 835205 India
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30
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Endo N, Iwasawa T. Stereo-defined synthesis of differentially all-carbon tetrasubstituted alkenes derived from ( E )-1-bromo-2-iodoalkenes. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Wang X, Studer A. Regio- and Stereoselective Radical Perfluoroalkyltriflation of Alkynes Using Phenyl(perfluoroalkyl)iodonium Triflates. Org Lett 2017; 19:2977-2980. [PMID: 28517935 PMCID: PMC5460293 DOI: 10.1021/acs.orglett.7b01215] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
![]()
A method
for regio- and stereoselective anti-addition of the perfluoroalkyl
and the triflate group of phenyl(perfluoroalkyl)iodonium
triflates to alkynes is presented. The radical reaction uses cheap
CuCl as a smart initiator and can be conducted in gram scale. The
perfluoroalkyltriflated products are readily further functionalized,
rendering this transformation valuable.
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Affiliation(s)
- Xi Wang
- Institute of Organic Chemistry, University of Münster , Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Institute of Organic Chemistry, University of Münster , Corrensstrasse 40, 48149 Münster, Germany
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32
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Regio-selective cyanation of ( Z )-(1,2-dibromo-2-arylvinyl)triisopropylsilane with suppression of halogen elimination. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Wu C, Liu Z, Zhang Z, Ye F, Deng G, Zhang Y, Wang J. Copper(I)-Catalyzed Stereoselective Synthesis of (E
)-α-Alkynyl-α,β-unsaturated Esters from a Terminal Alkyne, Diazoesters and Aldehydes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chenggui Wu
- 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 People's Republic of China
- College of Chemistry and Chemical Engineering; Hunan Normal University; Changsha 410081 People's Republic of China
| | - Zhenxing Liu
- 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 People's Republic of China
| | - Zhikun 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 People's Republic of China
| | - Fei Ye
- 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 People's Republic of China
| | - Guisheng Deng
- College of Chemistry and Chemical Engineering; Hunan Normal University; Changsha 410081 People's Republic of China
| | - Yan 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 People's Republic of China
| | - Jianbo Wang
- 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 People's Republic of China
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34
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Jiao J, Wang S, Chen C, Liu Q, Xi C. Directly Oxidative Cross-Coupling between Alkenylzirconocene and Alkynylcopper Reagents. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiajia Jiao
- Institute
of Chemistry and Chemical Engineering, Hebei Normal University, Shijiazhuang 050091, People’s Republic of China
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Sheng Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Qingbin Liu
- Institute
of Chemistry and Chemical Engineering, Hebei Normal University, Shijiazhuang 050091, People’s Republic of China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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35
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Endo N, Kanaura M, Iwasawa T. Elucidation of reaction process through β-halogen elimination in CuCN-mediated cyanation of (E)-1-bromo-2-iodoalkene. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Prabagar B, Nayak S, Mallick RK, Prasad R, Sahoo AK. Triphenylphosphine promoted regio and stereoselective α-halogenation of ynamides. Org Chem Front 2016. [DOI: 10.1039/c5qo00345h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Metal free α-halogenation of ynamides at room temperature.
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Affiliation(s)
- B. Prabagar
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Sanatan Nayak
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | | | - Rangu Prasad
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Akhila K. Sahoo
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
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37
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Paju A, Kostomarova D, Matkevitš K, Laos M, Pehk T, Kanger T, Lopp M. 3-Alkyl-1,2-cyclopentanediones by Negishi cross-coupling of a 3-bromo-1,2-cyclopentanedione silyl enol ether with alkylzinc reagents: an approach to 2-substituted carboxylic acid γ-lactones, homocitric and lycoperdic acids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Dérien S, Klein H, Bruneau C. Selective ruthenium-catalyzed hydrochlorination of alkynes: one-step synthesis of vinylchlorides. Angew Chem Int Ed Engl 2015; 54:12112-5. [PMID: 26329762 DOI: 10.1002/anie.201505144] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Indexed: 11/08/2022]
Abstract
An unprecedented ruthenium-catalyzed direct and selective alkyne hydrochlorination is reported and leads to vinylchlorides in excellent yields with atom economy. The reaction proceeds at room temperature from terminal alkynes and provides a variety of chloroalkenes. Only the regioisomer resulting from the formal Markovnikov addition is selectively formed. Mechanistic studies show the stereoselective syn addition of HCl to alkynes at room temperature and suggest a chloro hydrido Ru(IV) species as a key intermediate of the reaction.
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Affiliation(s)
- Sylvie Dérien
- Institut des Sciences Chimiques de Rennes-UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu 35042 Rennes (France).
| | - Hubert Klein
- Institut des Sciences Chimiques de Rennes-UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu 35042 Rennes (France)
| | - Christian Bruneau
- Institut des Sciences Chimiques de Rennes-UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu 35042 Rennes (France)
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39
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Saputra MA, Ngo L, Kartika R. Synthesis of Vinyl Chlorides via Triphosgene–Pyridine Activation of Ketones. J Org Chem 2015; 80:8815-20. [DOI: 10.1021/acs.joc.5b01137] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mirza A. Saputra
- Department of Chemistry, Louisiana State University, 232 Choppin
Hall, Baton
Rouge, Louisiana 70803, United States
| | - Ly Ngo
- Department of Chemistry, Louisiana State University, 232 Choppin
Hall, Baton
Rouge, Louisiana 70803, United States
| | - Rendy Kartika
- Department of Chemistry, Louisiana State University, 232 Choppin
Hall, Baton
Rouge, Louisiana 70803, United States
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40
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Dérien S, Klein H, Bruneau C. Selective Ruthenium-Catalyzed Hydrochlorination of Alkynes: One-Step Synthesis of Vinylchlorides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505144] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Xie M, Wang J, Fang K, Wang S, Yan L. Regio- and stereoselective synthesis of (E)-β-halo alkenyl ketones/sulfones via haloallylation of alkynyl ketones/sulfones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.098] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Sproul KC, Chalifoux WA. Highly Regio- and Diastereoselective Formation of Tetrasubstituted (Z)-1,2-Dihaloalkenes from the Halogenation of Trimethylsilyl Alkynes with ICl. Org Lett 2015; 17:3334-7. [DOI: 10.1021/acs.orglett.5b01558] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyle C. Sproul
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
| | - Wesley A. Chalifoux
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
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43
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Ashida Y, Sato Y, Suzuki T, Ueno K, Kai KI, Nakatsuji H, Tanabe Y. (E)-,(Z)-Parallel Preparative Methods for Stereodefined β,β-Diaryl- and α,β-Diaryl-α,β-unsaturated Esters: Application to the Stereocomplementary Concise Synthesis of Zimelidine. Chemistry 2015; 21:5934-45. [DOI: 10.1002/chem.201405150] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Indexed: 11/07/2022]
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44
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Yauchi Y, Ide M, Shiogai R, Chikugo T, Iwasawa T. Regio- and Stereoselective Synthesis of Vicinal (Z)-Dihaloalkenylsilanes from Silyl Ethynylarenes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Iwasawa T. Synthetic Development of Multi-tunable Halovinyl Scaffolds for Differentially Substituted Olefin Template Strategy. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.1212] [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]
Affiliation(s)
- Tetsuo Iwasawa
- Department of Materials Chemistry, Faculty of Science & Technology, Ryukoku University
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46
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Nakatsuji H, Ashida Y, Hori H, Sato Y, Honda A, Taira M, Tanabe Y. (E)- and (Z)-stereodefined enol phosphonates derived from β-ketoesters: stereocomplementary synthesis of fully-substituted α,β-unsaturated esters. Org Biomol Chem 2015; 13:8205-10. [DOI: 10.1039/c5ob01097g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile, robust, and stereocomplementary synthesis of fully-substituted (E)- and (Z)-stereodefined α,β-unsaturated esters 3 from accessible α-substituted β-ketoesters 1via (E)- and (Z)-enol phosphonates was achieved.
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Affiliation(s)
- Hidefumi Nakatsuji
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yuichiro Ashida
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Hiroshi Hori
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yuka Sato
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Atsushi Honda
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Mayu Taira
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yoo Tanabe
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
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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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Synthesis of cis-1,2-dichlorovinylsulfones via Fe-catalyzed regio- and stereoselective addition of sulfonyl chlorides to aromatic chloroalkynes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Rossi D, Pedrali A, Marra A, Pignataro L, Schepmann D, Wünsch B, Ye L, Leuner K, Peviani M, Curti D, Azzolina O, Collina S. Studies on the Enantiomers of as Neuroprotective Agents: Isolation, Configurational Assignment, and Preliminary Biological Profile. Chirality 2013; 25:814-22. [DOI: 10.1002/chir.22223] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 06/19/2013] [Accepted: 06/19/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Alice Pedrali
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Luca Pignataro
- Dipartimento di Chimica; Università degli Studi di Milano, Istituto di Scienze e Tecnologie Molecolari (ISTM) del CNR; Milan Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry; University of Münster; Münster Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry; University of Münster; Münster Germany
| | - Lian Ye
- Molecular & Clinical Pharmacy; FAU Erlangen/Nuremberg; Erlangen Germany
| | - Kristina Leuner
- Molecular & Clinical Pharmacy; FAU Erlangen/Nuremberg; Erlangen Germany
| | - Marco Peviani
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology; University of Pavia; Pavia Italy
| | - Daniela Curti
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology; University of Pavia; Pavia Italy
| | - Ornella Azzolina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
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