1
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Naulin E, Lombard M, Gandon V, Retailleau P, Elslande EV, Neuville L, Masson G. Enantioselective and Regiodivergent Synthesis of Dihydro-1,2-oxazines from Triene-Carbamates via Chiral Phosphoric Acid-Catalysis. J Am Chem Soc 2023; 145:26504-26515. [PMID: 38011838 DOI: 10.1021/jacs.3c12015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Conjugated trienes are fascinating building blocks for the rapid construction of complex polycyclic compounds. However, limited success has been achieved due to the challenging regioselectivity control. Herein, we report an enantio- and diastereoselective process allowing to regioselectively control the functionalization of NH-triene-carbamates. Synthesis of chiral cis-3,6-dihydro-2H-1,2-oxazines is achieved by a chiral phosphoric acid catalyzed Nitroso-Diels-Alder cycloaddition involving [(1E,3E,5E)-hexa-1,3,5-trien-1-yl]carbamates. Moreover, modular access to three different regioisomers with excellent diastereoselectivities and high to excellent enantioselectivities is obtained by a careful choice of the reaction conditions. A computational study reveals that the regioselectivity is influenced by the steric demand of the substituents at the 6-position of the triene, as well as noncovalent interactions between the two cycloaddition partners. Utility of each regioisomeric cycloadduct is highlighted by a variety of synthetic transformations.
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Affiliation(s)
- Emma Naulin
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
| | - Marine Lombard
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Saclay, 17 Avenue des Sciences, Orsay 91400, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
| | - Elsa Van Elslande
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
- HitCat, Seqens-CNRS Joint Laboratory, Seqens'Lab, 8 Rue de Rouen, Porcheville 78440, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, Gif-sur-Yvette Cedex 91198, France
- HitCat, Seqens-CNRS Joint Laboratory, Seqens'Lab, 8 Rue de Rouen, Porcheville 78440, France
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2
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Cheng L, Wang M, Yang Y, Wang Z, Zhu Y, Kong L, Li Y. Stereoselective Synthesis of 1,3,5-Trienes from Alkynones and Allyl Carbonyl Compounds Through C-C σ-Bond Cleavage under Transition-Metal-Free Conditions. Org Chem Front 2022. [DOI: 10.1039/d2qo00617k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An atom-economical transition-metal-free protocol for the stereoselective synthesis of conjugated trienes has been developed. These transformations were realized through base promoted C-C σ-bond cleavage reactions of allyl carbonyl compounds. This...
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3
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Elagamy A, Althagafi I, Pratap R. Step-wise and one-pot synthesis of highly substituted conjugated trienes from 2-oxobenzo[ h]chromenes/2 H-pyran-2-ones. Org Biomol Chem 2021; 19:3901-3910. [PMID: 33949600 DOI: 10.1039/d1ob00314c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient route for the synthesis of conjugated trienes via nitroethane-mediated ring contraction of 2-oxobenzo[h]chromenes/2H-pyran-2-ones followed by decarboxylative rearrangement of the obtained spirobutenolides and butenolides is described. The (E)-isomer of trienes was obtained by step-wise and one-pot approaches from 2-oxobenzo[h]chromenes. Butenolides 4a-l as new substrates have been developed for the construction of trienes. The mixture of the (E)- and (Z)-isomers of spirobutenolides undergoes decarboxylative rearrangement in the presence of sodium ethoxide as a base to yield the (E)-isomer of trienes, while the (E)-isomer of butenolides reacts to give a mixture of (2E,4E)- and (2E,4Z)-isomers of trienes in an almost steady ratio of 45 : 55 or 1 : 1.2. The structure and geometry of the obtained butenolides and trienes were confirmed by single-crystal X-ray analysis.
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Affiliation(s)
- Amr Elagamy
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| | - Ismail Althagafi
- Chemistry Department, Faculty of Science, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
| | - Ramendra Pratap
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
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4
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Ramesh P, Satyanarayana G. Palladium-Catalyzed Aerobic Oxidative Coupling of ortho-(Alkynyl)styrenes with Allylic Alcohols via 6-endo-dig Cyclization: Regioselective Construction of Polysubstituted Naphthalenes. J Org Chem 2019; 84:12856-12870. [DOI: 10.1021/acs.joc.9b01240] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Perla Ramesh
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502285 Telangana, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502285 Telangana, India
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5
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Dou X, Liu N, Yao J, Lu T. Rhodium-Catalyzed Homocoupling of γ-Alkylated tert-Propargylic Alcohols. Org Lett 2017; 20:272-275. [DOI: 10.1021/acs.orglett.7b03663] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaowei Dou
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Na Liu
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jian Yao
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Tao Lu
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, Nanjing 210009, China
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6
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Mao XF, Zhu XP, Li DY, Liu PN. Cu-Catalyzed Cascade Annulation of Alkynols with 2-Azidobenzaldehydes: Access to 6H-Isochromeno[4,3-c]quinoline. J Org Chem 2017; 82:7032-7039. [PMID: 28553980 DOI: 10.1021/acs.joc.7b00937] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A copper-catalyzed cascade reaction of alkynols and 2-azidobenzaldehydes has been achieved, giving 6H-isochromeno[4,3-c]quinoline in yields of 40-81%. This reaction provides a novel, concise strategy for rapidly constructing compounds with fused N- and O-containing heterocycles. In contrast to previously reported reactions of alkynols in which the first step is intramolecular cycloisomerization, the first step in this novel reaction of alkynols is entropically unfavorable intermolecular addition. The resulting hemiacetal intermediate then undergoes intramolecular cyclization and aromatization to afford the product.
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Affiliation(s)
- Xiao-Feng Mao
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, China
| | - Xiao-Ping Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, China
| | - Deng-Yuan Li
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, China
| | - Pei-Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, China
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7
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Mao XF, Zhu XP, Li DY, Jiang LL, Liu PN. Cascade reaction of alkynols with 1-(2-aminophenyl)prop-2-ynols to form a fused 5,5,6-tricyclic system: formation of four bonds in a single reaction. Chem Commun (Camb) 2017; 53:8608-8611. [DOI: 10.1039/c7cc04126h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel cascade reaction of internal alkynols with 1-(2-aminophenyl)prop-2-ynols has been developed to form a new N,O-containing fused 5,5,6-tricyclic skeleton.
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Affiliation(s)
- Xiao-Feng Mao
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Xiao-Ping Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Deng-Yuan Li
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Liang-Liang Jiang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Pei-Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
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8
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Petrone DA, Ye J, Lautens M. Modern Transition-Metal-Catalyzed Carbon–Halogen Bond Formation. Chem Rev 2016; 116:8003-104. [DOI: 10.1021/acs.chemrev.6b00089] [Citation(s) in RCA: 394] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- David A. Petrone
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
| | - Juntao Ye
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
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9
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Shi JL, Zhang JC, Wang BQ, Hu P, Zhao KQ, Shi ZJ. Fe-Promoted Chlorobenzylation of Terminal Alkynes through Benzylic C(sp3)–H Bond Functionalization. Org Lett 2016; 18:1238-41. [DOI: 10.1021/acs.orglett.5b02472] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiang-Ling Shi
- College
of Chemistry and Material Chemistry, Sichuan Normal University, Sichuan 610066, China
| | - Ji-Cheng Zhang
- Beijing
National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Bi-Qin Wang
- College
of Chemistry and Material Chemistry, Sichuan Normal University, Sichuan 610066, China
| | - Ping Hu
- College
of Chemistry and Material Chemistry, Sichuan Normal University, Sichuan 610066, China
| | - Ke-Qing Zhao
- College
of Chemistry and Material Chemistry, Sichuan Normal University, Sichuan 610066, China
| | - Zhang-Jie Shi
- Beijing
National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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10
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Zheng M, Huang L, Tong Q, Wu W, Jiang H. Oxypalladation Initiating the Oxidative Heck Reaction with Alkenyl Alcohols: Synthesis of Isocoumarin-Alkanones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501451] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Zhou P, Liu W, Qiu H. Synthesis of Functionalized 3-Bromoindenes via Pd(II)-catalyzed Tandem Reactions of o-(Alkynyl)styrenes: Taking Dioxygen as Sole Oxidant. CHEM LETT 2015. [DOI: 10.1246/cl.150756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Zhou
- School of Chemical Engineering, Guangdong University of Petrochemical Technology
| | - Weibing Liu
- School of Chemical Engineering, Guangdong University of Petrochemical Technology
| | - Huihua Qiu
- School of Chemical Engineering, Guangdong University of Petrochemical Technology
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12
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Tunable Cascade Reactions of Alkynols with Alkynes under Combined Sc(OTf)3
and Rhodium Catalysis. Angew Chem Int Ed Engl 2015; 55:373-7. [DOI: 10.1002/anie.201508914] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Indexed: 11/07/2022]
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13
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Li DY, Chen HJ, Liu PN. Tunable Cascade Reactions of Alkynols with Alkynes under Combined Sc(OTf)3
and Rhodium Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508914] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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14
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Liu RR, Lu CJ, Zhang MD, Gao JR, Jia YX. Palladium-Catalyzed Three-Component Cascade Reaction: Facial Access to Densely Functionalized Indolizines. Chemistry 2015; 21:7057-60. [DOI: 10.1002/chem.201500569] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Indexed: 11/10/2022]
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15
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Intermolecular Asymmetric Carboesterification of Alkenes by Using Chiral Amine Auxiliaries under O2: Synthesis of Enantioenriched α-Methylene-γ-Lactones through Chloropalladation of Alkynes. Chemistry 2015; 21:6708-12. [DOI: 10.1002/chem.201500397] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Indexed: 01/07/2023]
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16
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Zhang Z, Ouyang L, Wu W, Li J, Zhang Z, Jiang H. Palladium-Catalyzed Intermolecular Oxyvinylcyclization of Alkenes with Alkynes: An Approach to 3-Methylene γ-Lactones and Tetrahydrofurans. J Org Chem 2014; 79:10734-42. [DOI: 10.1021/jo501606c] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Zhenming Zhang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lu Ouyang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jianxiao Li
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Zhicai Zhang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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17
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Horino Y, Takahashi Y, Koketsu K, Abe H, Tsuge K. Practical and Convenient Synthesis of 1,6-Di- or 1,2,5,6-Tetra-arylhexa-1,3,5-trienes by the Dimerization of Pd(0)-Complexed Alkenylcarbenes Generated from π-Allylpalladium Intermediates. Org Lett 2014; 16:3184-7. [DOI: 10.1021/ol501643x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshikazu Horino
- Department of Applied Chemistry and ‡Department of Chemistry, Graduate School of
Science and Engineering, University of Toyama, Gofuku, Toyama 930-855, Japan
| | - Yu Takahashi
- Department of Applied Chemistry and ‡Department of Chemistry, Graduate School of
Science and Engineering, University of Toyama, Gofuku, Toyama 930-855, Japan
| | - Kaori Koketsu
- Department of Applied Chemistry and ‡Department of Chemistry, Graduate School of
Science and Engineering, University of Toyama, Gofuku, Toyama 930-855, Japan
| | - Hitoshi Abe
- Department of Applied Chemistry and ‡Department of Chemistry, Graduate School of
Science and Engineering, University of Toyama, Gofuku, Toyama 930-855, Japan
| | - Kiyoshi Tsuge
- Department of Applied Chemistry and ‡Department of Chemistry, Graduate School of
Science and Engineering, University of Toyama, Gofuku, Toyama 930-855, Japan
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18
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Li DY, Shi KJ, Mao XF, Chen GR, Liu PN. Transition Metal-Free Cascade Reactions of Alkynols to Afford Isoquinolin-1(2H)-one and Dihydroisobenzofuran Derivatives. J Org Chem 2014; 79:4602-14. [DOI: 10.1021/jo5006312] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Deng Yuan Li
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 China
| | - Ke Ji Shi
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 China
| | - Xiao Feng Mao
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 China
| | - Guo Rong Chen
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 China
| | - Pei Nian Liu
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237 China
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19
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Xu Y, Zhao J, Chen H, Wu W, Jiang H. A convenient regioselective synthesis of cyclopentadienones via palladium-catalyzed [2+2+1] cyclocarbonylation of alkynes. Chem Commun (Camb) 2014; 50:2488-90. [DOI: 10.1039/c3cc48308h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Gao Y, Wu W, Huang H, Huang Y, Jiang H. Palladium-catalyzed intermolecular [3 + 2] carbocyclization of alkynols and propiolates: an efficient entry to halo-cyclopentadienes. Chem Commun (Camb) 2014; 50:846-8. [DOI: 10.1039/c3cc47310d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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21
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Wang Q, Huang L, Wu X, Jiang H. Nucleopalladation Triggering the Oxidative Heck Reaction: A General Strategy to Diverse β-Indole Ketones. Org Lett 2013; 15:5940-3. [DOI: 10.1021/ol4027683] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Qian Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Liangbin Huang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Xia Wu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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22
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Ghosh M, Ahmed A, Dhara S, Ray JK. Synthesis of phenanthridine and its analogues via aerobic ligand-free domino Suzuki coupling–Michael addition reaction catalyzed by in situ generated palladium-nanoparticles in water. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.089] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Muzart J. Three to seven C–C or C–heteroatom bonds from domino reactions involving a Heck process. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.061] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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24
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Wu W, Gao Y, Jiang H, Huang Y. Palladium-Catalyzed Bond Reorganization of 1,3-Diynes: An Entry to Diverse Functionalized 1,5-Dien-3-ynes. J Org Chem 2013; 78:4580-6. [DOI: 10.1021/jo400276e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Wanqing Wu
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic
of China
| | - Yang Gao
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic
of China
| | - Huanfeng Jiang
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic
of China
| | - Yubing Huang
- School of Chemistry
and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic
of China
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25
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Sabbasani VR, Mamidipalli P, Lu H, Xia Y, Lee D. Subtle electronic effects in metal-free rearrangement of allenic alcohols. Org Lett 2013; 15:1552-5. [PMID: 23517176 DOI: 10.1021/ol400331r] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A general and stereoselective rearrangement of allenic alcohols to (E,E)-1,3-dien-2-yl triflates and chlorides was developed under metal-free conditions. Subtle electronic effects of the alkyl and aryl substituents on the carbon bearing the hydroxyl group has a profound impact on the reaction rate and efficiency such that vinyl triflates were obtained from electron-deficient substrates and trimethylsilyl triflate whereas vinyl chlorides were generated with an electron-rich substrate and trimethylsilyl chloride.
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Affiliation(s)
- Venkata R Sabbasani
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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