1
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Zeng L, Liu S, Lan Y, Gao L. Catalytic asymmetric oxa-Diels-Alder reaction of acroleins with simple alkenes. Nat Commun 2023; 14:3511. [PMID: 37316484 DOI: 10.1038/s41467-023-39184-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/30/2023] [Indexed: 06/16/2023] Open
Abstract
The catalytic asymmetric inverse-electron-demand oxa-Diels-Alder (IODA) reaction is a highly effective synthetic method for creating enantioenriched six-membered oxygen-containing heterocycles. Despite significant effort in this area, simple α,β-unsaturated aldehydes/ketones and nonpolarized alkenes are seldom utilized as substrates due to their low reactivity and difficulties in achieving enantiocontrol. This report describes an intermolecular asymmetric IODA reaction between α-bromoacroleins and neutral alkenes that is catalyzed by oxazaborolidinium cation 1f. The resulting dihydropyrans are produced in high yields and excellent enantioselectivities over a broad range of substrates. The use of acrolein in the IODA reaction produces 3,4-dihydropyran with an unoccupied C6 position in the ring structure. This unique feature is utilized in the efficient synthesis of (+)-Centrolobine, demonstrating the practical synthetic utility of this reaction. Additionally, the study found that 2,6-trans-tetrahydropyran can undergo efficient epimerization into 2,6-cis-tetrahydropyran under Lewis acidic conditions. This structural core is widespread in natural products.
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Affiliation(s)
- Lei Zeng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Shihan Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China.
- ZhengZhou JiShu Institute of AI Science, Zhengzhou, 450000, P. R. China.
| | - Lizhu Gao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China.
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2
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Gan Z, Cui D, Zhang H, Feng Y, Huang L, Gui Y, Gao L, Song Z. Trityl Cation-Catalyzed Hosomi-Sakurai Reaction of Allylsilane with β,γ-Unsaturated α-Ketoester to Form γ,γ-Disubstituted α-Ketoesters. Molecules 2022; 27:molecules27154730. [PMID: 35897907 PMCID: PMC9331905 DOI: 10.3390/molecules27154730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 12/10/2022] Open
Abstract
(Ph3C)[BPh(F)4]-catalyzed Hosomi-Sakurai allylation of allylsilanes with β,γ-unsaturated α-ketoesters has been developed to give γ,γ-disubstituted α-ketoesters in high yields with excellent chemoselectivity. Preliminary mechanistic studies suggest that trityl cation dominates the catalysis, while the silyl cation plays a minor role.
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Affiliation(s)
| | | | | | | | | | | | - Lu Gao
- Correspondence: (L.G.); (Z.S.)
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3
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Copper Catalyzed Inverse Electron Demand [4+2] Cycloaddition for the Synthesis of Oxazines. Catalysts 2022. [DOI: 10.3390/catal12050526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A copper catalyzed tandem CuAAC/ring cleavage/[4+2] annulation reaction of terminal ynones, sulfonyl azides, and imines has been developed to synthesize the functionalized oxazines under mild conditions. Particularly, the intermediate N-sulfonyl acylketenimines undergo cycloaddition of an inverse electron demand Diels–Alder reaction with imines and a series of 1,3-oxazine derivatives were obtained successfully in good yields.
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4
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Zeng L, Lei Q, Rao W, Gao L. Catalytic Diastereoselective Hetero-Diels-Alder Reaction of α-Haloacroleins with Alkenes: Construction of 3,4-Dihydropyran. Org Lett 2022; 24:2115-2119. [PMID: 35266718 DOI: 10.1021/acs.orglett.2c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this Letter, a catalytic diastereoselective hetero-Diels-Alder reaction of α-haloacroleins with less polarized alkenes was developed, and the resulting 3,4-dihydropyrans were produced in high yields with a broad substate scope. Mechanism studies showed that 3,4-dihydropyran was produced from the ring expansion of cyclobutane, which was generated in the ring contraction of the initially formed unstable 3,4-dihydropyran conformer.
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Affiliation(s)
- Lei Zeng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Qian Lei
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lizhu Gao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
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5
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Ball-Jones NR, Cobo AA, Armstrong BM, Wigman B, Fettinger JC, Hein JE, Franz AK. Ligand-Accelerated Catalysis in Scandium(III)-Catalyzed Asymmetric Spiroannulation Reactions. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas R. Ball-Jones
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
| | - Angel A. Cobo
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
| | - Brittany M. Armstrong
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
| | - Benjamin Wigman
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
| | - James C. Fettinger
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
| | - Jason E. Hein
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Annaliese K. Franz
- Department of Chemistry, One Shields Ave, University of California, Davis, California 95616, United States
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6
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Zhang MC, Wang DC, Qu GR, Guo HM. Catalytic Asymmetric Synthesis of Chiral Thiohydantoins via Domino Cyclization Reaction of β,γ-Unsaturated α-Ketoester and N,N'-Dialkylthiourea. Org Chem Front 2022. [DOI: 10.1039/d2qo00669c] [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
The first catalytic asymmetric route to synthesize chiral thiohydantoins containing a quaternary stereogenic center has been established utilizing a chiral phosphoric acid-catalyzed domino cyclization reaction of N,N'-dialkyl thioureas with β,γ-unsaturated...
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7
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Jin M, Tang C, Li Y, Yang S, Yang YT, Peng L, Li XN, Zhang W, Zuo Z, Gagosz F, Wang LL. Enantioselective access to tricyclic tetrahydropyran derivatives by a remote hydrogen bonding mediated intramolecular IEDHDA reaction. Nat Commun 2021; 12:7188. [PMID: 34893616 PMCID: PMC8664811 DOI: 10.1038/s41467-021-27521-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/25/2021] [Indexed: 11/22/2022] Open
Abstract
Inverse-electron-demand-hetero-Diels-Alder reactions of alkenes with α,β-unsaturated keto compounds allow rapid access to the tetrahydropyran ring found in numerous natural products and bioactive molecules. Despite its synthetic interest, catalytic asymmetric versions of this process remain underdeveloped, especially regarding the use of non-activated alkenes reacting with α,β-unsaturated ketone or aldehyde, for which no report can be found in the literature. Herein, we describe the catalytic inverse-electron-demand-hetero-Diels-Alder reactions between neutral alkenes and an α,β-unsaturated ketones or aldehydes to produce a variety of trans-fused [5,6,8] tricyclic structures containing a central, chiral tetrahydropyran ring. This complex transformation, which is achieved using a chiral phosphoric acid, allows for the formation of four stereogenic centers in a single step with high regio-, diastereo- and enantioselectivity (up to 99% ee). Such level of stereocontrol could be achieved by a key remote double hydrogen atom bonding interaction between the linear substrate and the catalyst. Although the hetero-Diels–Alder reaction is a staple of organic chemistry, catalytic asymmetric versions of the inverse-electron demand variant often require specially engineered substrates for the reaction to work. Here the authors cyclize non-activated alkenes with α,β-unsaturated ketones or aldehydes to form chiral fused heterocycles using a chiral phosphoric acid catalyst.
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Affiliation(s)
- Min Jin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China
| | - Congyun Tang
- School of Food and Chemical Engineering, Shaoyang University, 422000, Shaoyang, PR China
| | - Yingying Li
- School of Chemical Engineering, Sichuan University of Science & Engineering, 643000, Zigong, PR China
| | - Shuai Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China
| | - Ying-Tao Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China
| | - Lin Peng
- School of Food and Chemical Engineering, Shaoyang University, 422000, Shaoyang, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China
| | - Wenjing Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, 450001, Zhengzhou, Henan Province, PR China.
| | - Zhili Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China.
| | - Fabien Gagosz
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5, Ottawa, Canada
| | - Liang-Liang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, PR China.
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8
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Lewis acid-catalyzed [4 + 2] cycloaddition of 3-alkyl-2-vinylindoles with β,γ-unsaturated α-ketoesters. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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9
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Connon R, Roche B, Rokade BV, Guiry PJ. Further Developments and Applications of Oxazoline-Containing Ligands in Asymmetric Catalysis. Chem Rev 2021; 121:6373-6521. [PMID: 34019404 PMCID: PMC8277118 DOI: 10.1021/acs.chemrev.0c00844] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 12/27/2022]
Abstract
The chiral oxazoline motif is present in many ligands that have been extensively applied in a series of important metal-catalyzed enantioselective reactions. This Review aims to provide a comprehensive overview of the most significant applications of oxazoline-containing ligands reported in the literature starting from 2009 until the end of 2018. The ligands are classified not by the reaction to which their metal complexes have been applied but by the nature of the denticity, chirality, and donor atoms involved. As a result, the continued development of ligand architectural design from mono(oxazolines), to bis(oxazolines), to tris(oxazolines) and tetra(oxazolines) and variations thereof can be more easily monitored by the reader. In addition, the key transition states of selected asymmetric transformations will be given to illustrate the features that give rise to high levels of asymmetric induction. As a further aid to the reader, we summarize the majority of schemes with representative examples that highlight the variation in % yields and % ees for carefully selected substrates. This Review should be of particular interest to the experts in the field but also serve as a useful starting point to new researchers in this area. It is hoped that this Review will stimulate both the development/design of new ligands and their applications in novel metal-catalyzed asymmetric transformations.
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Affiliation(s)
- Robert Connon
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Brendan Roche
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Balaji V. Rokade
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
| | - Patrick J. Guiry
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
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10
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Xiong Y, Han XX, Lu Y, Wang HJ, Zhang M, Liu XW. Highly diastereoselective synthesis of trifluoromethyl containing spiro[pyrrolidin-3,2′-oxindoles] from N-2,2,2-trifluoroethylsubstituted isatin imines and β,γ-unsaturated α-keto esters. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Mo Y, Zhang X, Yao Y, Duan C, Ye L, Shi Z, Zhao Z, Li X. Construction of Chiral Isotetronic Acid-Fused Thiochromane via Doubly Annulative Strategy. J Org Chem 2021; 86:4448-4456. [PMID: 33651601 DOI: 10.1021/acs.joc.0c02878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A sulfa-Michael/aldol/lactonization cascade reaction has been established to construct isotetronic acid-fused thiochromanes in a highly stereoselective fashion (≥11:1 dr, 35-98% ee). The tricyclic products were obtained in 35-99% isolated yields in the presence of a bifunctional squaramide. Three reactive sites of β,γ-unsaturated α-ketoester, including the less-explored ester carbonyl group, were sequentially utilized to construct two fused heterocycles in a one-pot operation.
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Affiliation(s)
- Yiran Mo
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuehuan Zhang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Yongqi Yao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Cong Duan
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhichuan Shi
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
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12
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Lin X, Liu Y, Li C. Allylsilane Reagent-Controlled Divergent Asymmetric Catalytic Reactions of 2-Naphthoquinone-1-methide. Chemistry 2020; 26:14173-14180. [PMID: 32815199 DOI: 10.1002/chem.202002814] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/29/2020] [Indexed: 12/26/2022]
Abstract
Herein, the first allylsilane reagent-controlled divergent asymmetric Hosomi-Sakurai conjugate allylation and hetero-Diels-Alder (HDA) with 2-naphthoquinone-1-methide (2-Nap-Q-1-M) under the catalysis of ScIII /Feng ligand complex is reported. With these methods, a variety of uniquely substituted chiral allyl-functionalized diaryl compounds and naphthopyran products were obtained in a straightforward and highly stereoselective (up to 96.5:3.5 e.r.) manner under mild conditions. Moreover, it is demonstrated that 2-Nap-Q-1-M can serve as an efficient diene for a side asymmetric Diels-Alder (D-A) reaction. This principle can provide a straightforward access to hydrophenalene in an optically active form, which represents a structural core of various natural products and bioactive molecules.
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Affiliation(s)
- Xiangfeng Lin
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Yan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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13
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Wen KG, Peng YY, Zeng XP. Advances in the catalytic asymmetric synthesis of quaternary carbon containing cyclobutanes. Org Chem Front 2020. [DOI: 10.1039/d0qo00685h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The advances in the catalytic asymmetric synthesis of quaternary carbon containing cyclobutanes are described.
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Affiliation(s)
- Kai-Ge Wen
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education and Jiangxi Key Laboratory of Green Chemistry
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
| | - Yi-Yuan Peng
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education and Jiangxi Key Laboratory of Green Chemistry
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
| | - Xing-Ping Zeng
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education and Jiangxi Key Laboratory of Green Chemistry
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
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14
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Synthesis of chiral spiro-cyclopentene/cyclopentadiene-oxindoles through an asymmetric [3 + 2] cycloaddition of isatin-derived MBH carbonates and β,γ-unsaturated α-keto esters. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Thiourea-catalyzed asymmetric domino Michael-cyclization reaction of 3-isothiocyanato oxindoles with β,γ-unsaturated α-keto esters for the synthesis of spirocyclic oxindoles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.02.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Hatano M, Sakamoto T, Mochizuki T, Ishihara K. Tris(pentafluorophenyl)borane‐Assisted Chiral Phosphoric Acid Catalysts for Enantioselective Inverse‐Electron‐Demand Hetero‐Diels‐Alder Reaction of α,β‐Substituted Acroleins. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900104] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Manabu Hatano
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Tatsuhiro Sakamoto
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Takuya Mochizuki
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Kazuaki Ishihara
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
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17
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Wong CR, Hummel G, Cai Y, Schaus SE, Panek JS. [4 + 2]-Cycloaddition and 1,4-Addition of ortho-Quinone Methides by a Chiral Crotyl Silane. Org Lett 2019; 21:32-35. [PMID: 30557029 DOI: 10.1021/acs.orglett.8b03395] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anhydrous FeCl3 in the presence of 2,6-lutidine promotes the substrate-controlled enantioselective [4 + 2]-cycloaddition and crotylation reaction between an enantioenriched ( S, E)-crotyl silane and in situ generated ortho-quinone methides ( oQMs). The reaction produces both the chiral chroman and crotylation products in a ratio reflective of the electronic nature of the parent oQM with overall combined yields up to 96%. A ring-opening and elimination sequence was subsequently developed to provide direct access to the crotylation products, containing two contiguous tertiary carbon stereocenters, in good yields and enantioselectivities.
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Affiliation(s)
- Christopher R Wong
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Gerald Hummel
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Yongqi Cai
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Scott E Schaus
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - James S Panek
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
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18
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Niwa Y, Miyake M, Hayakawa I, Sakakura A. Catalytic enantioselective Hosomi–Sakurai reaction of α-ketoesters promoted by chiral copper(ii) complexes. Chem Commun (Camb) 2019; 55:3923-3926. [DOI: 10.1039/c9cc01159e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first catalytic enantioselective Hosomi−Sakurai reaction of α-ketoesters.
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Affiliation(s)
- Yutaro Niwa
- Graduate School of Natural Science and Technology, Okayama University
- Okayama
- Japan
| | - Mayu Miyake
- Graduate School of Natural Science and Technology, Okayama University
- Okayama
- Japan
| | - Ichiro Hayakawa
- Graduate School of Natural Science and Technology, Okayama University
- Okayama
- Japan
| | - Akira Sakakura
- Graduate School of Natural Science and Technology, Okayama University
- Okayama
- Japan
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19
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Hu X, Zhou Y, Lu Y, Zou S, Lin L, Liu X, Feng X. Catalytic Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reaction of Dioxopyrrolidines with Hetero-Substituted Alkenes. J Org Chem 2018; 83:8679-8687. [PMID: 29870249 DOI: 10.1021/acs.joc.8b00839] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A highly efficient enantioselective inverse-electron-demand hetero-Diels-Alder reaction of dioxopyrrolidines with heterosubstituted alkenes has been realized by using a N, N'-dioxide/Ni(II) complex as the catalyst. A series of chiral bicyclic dihydropyranes were generated in excellent yields, good dr, and excellent ee values. Besides, a catalytic cycle with a possible transition state was proposed.
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Affiliation(s)
- Xinyue Hu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China
| | | | - Yan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China
| | - Sijia Zou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , 610064 , People's Republic of China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin , People's Republic of China
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20
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Ren H, Song XY, Wang SR, Wang L, Tang Y. Highly Enantioselective Nickel-Catalyzed Oxa-[3+3]-annulation of Phenols with Benzylidene Pyruvates for Chiral Chromans. Org Lett 2018; 20:3858-3861. [DOI: 10.1021/acs.orglett.8b01442] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hai Ren
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Xiang-Yang Song
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Sunewang R. Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Lijia Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
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21
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Desimoni G, Faita G, Quadrelli P. Forty Years after “Heterodiene Syntheses with α,β-Unsaturated Carbonyl Compounds”: Enantioselective Syntheses of 3,4-Dihydropyran Derivatives. Chem Rev 2018; 118:2080-2248. [DOI: 10.1021/acs.chemrev.7b00322] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Desimoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Giuseppe Faita
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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22
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He XL, Zhao HR, Duan CQ, Du W, Chen YC. Remote Asymmetric Oxa-Diels–Alder Reaction of 5-Allylic Furfurals via Dearomatizative Tetraenamine Catalysis. Org Lett 2018; 20:804-807. [PMID: 29355329 DOI: 10.1021/acs.orglett.7b03942] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiao-Long He
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Hui-Ru Zhao
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | | | - Wei Du
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- College
of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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23
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Png ZM, Zeng H, Ye Q, Xu J. Inverse-Electron-Demand Diels-Alder Reactions: Principles and Applications. Chem Asian J 2017; 12:2142-2159. [DOI: 10.1002/asia.201700442] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/06/2017] [Indexed: 01/12/2023]
Affiliation(s)
- Zhuang Mao Png
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
| | - Huining Zeng
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
| | - Qun Ye
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
| | - Jianwei Xu
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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24
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Wang L, Lv J, Li S, Luo S. Divergent Coupling of β,γ-Unsaturated α-Ketoesters with Simple Olefins: Vinylation and [2 + 2] Cycloaddition. Org Lett 2017. [PMID: 28640629 DOI: 10.1021/acs.orglett.7b01291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalytic direct conjugate addition and [2 + 2] cycloaddition reactions of β,γ-unsaturated α-ketoesters with simple olefins have been developed, affording vinylation products and functionalized cyclobutanes, respectively, in good yields with high regioselectivity.
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Affiliation(s)
- Le Wang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jian Lv
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071, China
| | - Sujia Li
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071, China
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25
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Xie M, Lin L, Feng X. Catalytic Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reactions. CHEM REC 2017; 17:1184-1202. [PMID: 28508470 DOI: 10.1002/tcr.201700006] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Indexed: 02/05/2023]
Abstract
In this review, the recent developments in catalytic asymmetric inverse-electron-demand hetero-Diels-Alder reaction, which is recognized as one of the most powerful routes to construct highly functionalized and enantioenriched six-membered heterocycles, are described. The article is organized on the basis of different kinds of electron-deficient heterodienes, including α,β-unsaturated ketones/aldehydes, o-benzoquinones, α,β-unsaturated imines, N-aryl imines, o-benzoqinone imides, and other aza-olefins.
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Affiliation(s)
- Mingsheng Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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26
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Reddel JCT, Wang W, Koukounas K, Thomson RJ. Triflimide-catalyzed allylsilane annulations of benzylic alcohols for the divergent synthesis of indanes and tetralins. Chem Sci 2016; 8:2156-2160. [PMID: 28507668 PMCID: PMC5407261 DOI: 10.1039/c6sc04762a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022] Open
Abstract
The development of a triflimide-catalyzed annulation of benzylic alcohols with allylsilanes for the synthesis of indane or tetralin structures is reported. In this fragment coupling reaction, complexity is built rapidly from readily available starting materials to yield diverse sets of products with up to three contiguous stereocenters. Indanes or tetralins can be generated from common precursors depending on the structure of the allylsilane reagent used. The concise synthesis of several lignan natural products highlights the utility of this newly devised methodology.
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Affiliation(s)
- Jordan C T Reddel
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Weiwei Wang
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Kalli Koukounas
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Regan J Thomson
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
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27
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Shi ML, Zhan G, Zhou SL, Du W, Chen YC. Asymmetric Inverse-Electron-Demand Oxa-Diels-Alder Reaction of Allylic Ketones through Dienamine Catalysis. Org Lett 2016; 18:6480-6483. [PMID: 27978681 DOI: 10.1021/acs.orglett.6b03384] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A remote β,γ-regioselective asymmetric inverse-electron-demand oxa-Diels-Alder reaction between allylic ketones and α-cyano-α,β-unsaturated ketones has been developed through induced extended dienamine catalysis of a cinchona-derived primary amine. A spectrum of densely substituted dihydropyran frameworks were efficiently produced with excellent enantioselectivity and fair to exclusive diastereoselectivity.
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Affiliation(s)
- Ming-Lin Shi
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Gu Zhan
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Su-Lan Zhou
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Wei Du
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Ying-Chun Chen
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China.,College of Pharmacy, Third Military Medical University , Shapingba, Chongqing 400038, China
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28
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Gan Z, Chu Z, Hu J, Su Z, Hu C, Gao L, Song Z. Tunable reactivity of geminal bis(silyl) enol derivatives leading to selective exo-IEDDA or Sakurai allylation with a β,γ-unsaturated ketoester. Chem Commun (Camb) 2016; 52:10137-40. [PMID: 27457733 DOI: 10.1039/c6cc04593f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Two contrasting pathways in a SnCl4-catalyzed reaction of geminal bis(silyl) enol derivatives with β,γ-unsaturated ketoesters have been achieved by tuning the R group in the enol moiety. While the electron-donating Bn-substituted enol ether undergoes an exo-selective inverse-electron-demand Diels-Alder (IEDDA) reaction to give dihydropyran, the electron-withdrawing Ac-substituted enol ester reacts as an allylsilane to provide a Sakurai-allylated product with predominant syn-selectivity.
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Affiliation(s)
- Zubao Gan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Zhiwen Chu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Jia Hu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Zhishan Su
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lu Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Zhenlei Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China. and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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29
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Yang L, Huang W, He XH, Yang MC, Li X, He G, Peng C, Han B. Stereoselective Synthesis of Hydropyrano[3,2-b
]indoles via
Organocatalytic Asymmetric Inverse-Electron-Demand Oxa-Diels-Alder Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600465] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lei Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Xiang-Hong He
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Ming-Cheng Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Xiang Li
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Gu He
- State Key Laboratory of Biotherapy; West China Hospital; Sichuan University; Chengdu 610041 People's Republic of China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
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30
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Liu Q, Wang L, Kang Q, Zhang XP, Tang Y. Cy‐SaBOX/Copper(II)‐Catalyzed Highly Diastereo‐ and Enantioselective Synthesis of Bicyclic N,O Acetals. Angew Chem Int Ed Engl 2016; 55:9220-3. [DOI: 10.1002/anie.201603911] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/23/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Qiong‐Jie Liu
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Lijia Wang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qi‐Kai Kang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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31
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Liu Q, Wang L, Kang Q, Zhang XP, Tang Y. Cy‐SaBOX/Copper(II)‐Catalyzed Highly Diastereo‐ and Enantioselective Synthesis of Bicyclic N,O Acetals. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603911] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Qiong‐Jie Liu
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Lijia Wang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qi‐Kai Kang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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32
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Henrion S, Carboni B, Cossío FP, Roisnel T, Villalgordo JM, Carreaux F. Stereospecific Synthesis of α-Amino Allylsilane Derivatives through a [3,3]-Allyl Cyanate Rearrangement. Mild Formation of Functionalized Disiloxanes. J Org Chem 2016; 81:4633-44. [PMID: 27163288 DOI: 10.1021/acs.joc.6b00505] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient asymmetric synthesis of α-amino allylsilane derivatives is reported. The strategy is based on a [3,3]-allyl cyanate sigmatropic rearrangement from enantioenriched γ-hydroxy alkenylsilyl compounds. The isocyanate intermediate can be trapped by several nucleophiles, opening the way for the preparation of unknown chiral functionalized compounds such as the α-ureido allylsilanes as well as carbamate derivatives. A computational study was conducted to rationalize the complete 1,3-chirality transfer of this kind of rearrangement. Moreover, starting from products bearing a phenyldimethyl silyl substituent, the α-amino silane derivatives or the corresponding disiloxanes can be obtained under hydrogenation conditions in an exclusive way according to the used catalyst.
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Affiliation(s)
- Sylvain Henrion
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263, avenue du Général Leclerc, Campus de Beaulieu, Bâtiment 10A, 35042 Cedex Rennes, France
| | - Bertrand Carboni
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263, avenue du Général Leclerc, Campus de Beaulieu, Bâtiment 10A, 35042 Cedex Rennes, France
| | - Fernando P Cossío
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) , PO Manuel Lardizabal 3, 20018 San Sebastián/Donostia, Spain
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263, avenue du Général Leclerc, Campus de Beaulieu, Bâtiment 10A, 35042 Cedex Rennes, France
| | - Jose M Villalgordo
- VillaPharma Research, Parque Tecnológico de Fuente Álamo , Ctra El Estrecho-Lobosillo, Av. Azul, E-30320, Murcia, Spain
| | - François Carreaux
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263, avenue du Général Leclerc, Campus de Beaulieu, Bâtiment 10A, 35042 Cedex Rennes, France
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33
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Sawamura Y, Ogura Y, Nakatsuji H, Sakakura A, Ishihara K. Enantioselective bromocyclization of 2-geranylphenols induced by chiral phosphite-urea bifunctional catalysts. Chem Commun (Camb) 2016; 52:6068-71. [PMID: 27020117 DOI: 10.1039/c6cc00229c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chiral phosphite-urea bifunctional catalysts have been developed for the enantioselective bromocyclization of 2-geranylphenols with N-bromophthalimide (NBP) for the first time. The chiral triaryl phosphite moiety activates NBP to generate a bromophosphonium ion. On the other hand, the urea moiety interacts with a hydroxyl group of the substrate through hydrogen bonding interactions. Enantioselectivity is effectively induced through two-point attractive interactions between the catalyst and the substrate.
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Affiliation(s)
- Yasuhiro Sawamura
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan.
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34
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Li JL, Yang KC, Li Y, Li Q, Zhu HP, Han B, Peng C, Zhi YG, Gou XJ. Asymmetric synthesis of bicyclic dihydropyrans via organocatalytic inverse-electron-demand oxo-Diels–Alder reactions of enolizable aliphatic aldehydes. Chem Commun (Camb) 2016; 52:10617-20. [DOI: 10.1039/c6cc05001h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An unprecedented highly enantioselective amine catalyzed oxo-IEDDA reaction of cyclic enones with enolizable aldehydes including aqueous acetaldehyde has been developed.
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Affiliation(s)
- Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Kai-Chuan Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Yi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Qiang Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Hong-Ping Zhu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Yong-Gang Zhi
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Jun Gou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
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35
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Lv J, Zhang Q, Zhong X, Luo S. Asymmetric Latent Carbocation Catalysis with Chiral Trityl Phosphate. J Am Chem Soc 2015; 137:15576-83. [PMID: 26594778 DOI: 10.1021/jacs.5b11085] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Stable carbocations such as tritylium ions have been widely explored as organic Lewis acid catalysts and reagents in organic synthesis. However, achieving asymmetric carbocation catalysis remains elusive ever since they were first identified over one century ago. The challenges mainly come from their limited compatibility, scarcity of chiral carbocations, as well as the extremely low barrier to racemization of chiral carbenium ions. We reported here a latent concept for asymmetric carbocation catalysis. In this strategy, chiral trityl phosphate is employed as the carbocation precursor, which undergoes facile ionic dissociation upon mild external stimulation (e.g., acid, H-bonding, polar substrates) to form a catalytically active chiral ion pair for substrate activation and chiral induction. The latent strategy provides a solution for the long sought-after asymmetric carbocation catalysis as illustrated in three different enantioselective transformations.
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Affiliation(s)
- Jian Lv
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, China
| | - Qichao Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Xingren Zhong
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Sanzhong Luo
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, China
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36
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Hao X, Lin L, Tan F, Yin C, Liu X, Feng X. Ligand Control of Diastereodivergency in Asymmetric Inverse Electron Demand Diels–Alder Reaction. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01719] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiaoyu Hao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
| | - Fei Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
| | - Chengkai Yin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, People’s Republic of China
- Collaborative Innovation Center
of Chemical
Science and Engineering, Tianjin, People’s Republic of China
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37
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Mal K, Das S, Maiti NC, Natarajan R, Das I. ZnI2-Catalyzed Diastereoselective [4 + 2] Cycloadditions of β,γ-Unsaturated α-Ketothioesters with Olefins. J Org Chem 2015; 80:2972-88. [DOI: 10.1021/jo5024766] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kanchan Mal
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Supriya Das
- Structural Biology & Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Nakul C. Maiti
- Structural Biology & Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Ramalingam Natarajan
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Indrajit Das
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
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38
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Zhou Y, Lin L, Yin C, Wang Z, Liu X, Feng X. The N,N′-dioxide/Ni(ii)-catalyzed asymmetric inverse-electron-demand hetero-Diels–Alder reaction of methyleneindolinones with hetero-substituted alkenes. Chem Commun (Camb) 2015; 51:11689-92. [DOI: 10.1039/c5cc04245c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric inverse-electron-demand hetero-Diels–Alder reaction of methyleneindolinones with hetero-substituted alkenes catalyzed by chiral N,N′-dioxide/Ni(ii) complexes has been accomplished, affording dihydropyran-fused indoles in up to 99% yield, >95 : 5 dr and 99% ee.
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Affiliation(s)
- Yuhang Zhou
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Chengkai Yin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Zhengmeng Wang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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39
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Zhang Y, Yang N, Liu X, Guo J, Zhang X, Lin L, Hu C, Feng X. Reversal of enantioselective Friedel–Crafts C3-alkylation of pyrrole by slightly tuning the amide units of N,N′-dioxide ligands. Chem Commun (Camb) 2015; 51:8432-5. [DOI: 10.1039/c4cc10055g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Reversal enantioselective Friedel-Crafts alkylation of pyrrole with ligands derived from the same type of chiral source of L-ramipril, by slightly tuning the amide units has been realized.
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Affiliation(s)
- Yulong Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Na Yang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jing Guo
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiying Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Changwei Hu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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40
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41
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Luo W, Zhao J, Ji J, Lin L, Liu X, Mei H, Feng X. A catalytic asymmetric carbonyl–ene reaction of β,γ-unsaturated α-ketoesters with 5-methyleneoxazolines. Chem Commun (Camb) 2015; 51:10042-5. [DOI: 10.1039/c5cc02748a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A catalytic asymmetric carbonyl–ene reaction of β,γ-unsaturated α-ketoesters with 5-methyleneoxazolines was accomplished. The process was based on the utilization of a chiral N,N′-dioxide/MgII catalyst, providing the desired products with excellent outcomes.
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Affiliation(s)
- Weiwei Luo
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jiannan Zhao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jie Ji
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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42
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Yao W, Dou X, Lu Y. Highly Enantioselective Synthesis of 3,4-Dihydropyrans through a Phosphine-Catalyzed [4+2] Annulation of Allenones and β,γ-Unsaturated α-Keto Esters. J Am Chem Soc 2014; 137:54-7. [DOI: 10.1021/ja5109358] [Citation(s) in RCA: 160] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Weijun Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Xiaowei Dou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
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43
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Eftekhari-Sis B, Zirak M. Chemistry of α-oxoesters: a powerful tool for the synthesis of heterocycles. Chem Rev 2014; 115:151-264. [PMID: 25423283 DOI: 10.1021/cr5004216] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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Zhou Y, Zhu Y, Lin L, Zhang Y, Zheng J, Liu X, Feng X. N,N'-dioxide/nickel(II)-catalyzed asymmetric inverse-electron-demand hetero-diels-alder reaction of β,γ-unsaturated α-ketoesters with enecarbamates. Chemistry 2014; 20:16753-8. [PMID: 25348771 DOI: 10.1002/chem.201403764] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Indexed: 12/17/2022]
Abstract
N,N'-Dioxide/nickel(II) complexes have been developed to catalyze the inverse-electron-demand hetero-Diels-Alder reaction of β,γ-unsaturated α-ketoesters with acyclic enecarbamates. After detailed screening of the reaction parameters, mild optimized reaction conditions were established, affording 3,4-dihydro-2H-pyranamines in up to 99 % yield, 99 % ee and more than 95:5 d.r. The catalytic system was also efficient for β-substituted acyclic enecarbamates, affording more challenging 2,3,4-trisubstituted 3,4-dihydro-2H-pyranamine with three contiguous stereogenic centers in excellent yields, diastereoselectivities, and enantioselectivities. The reaction could be scaled up to a gram scale with no deterioration of either enantioselectivity or yield. Based on these experiments and on previous reports, a possible transition state was proposed.
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Affiliation(s)
- Yuhang Zhou
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China), Fax: (+86) 28-85418249
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45
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Ball-Jones NR, Badillo JJ, Tran NT, Franz AK. Catalytic enantioselective carboannulation with allylsilanes. Angew Chem Int Ed Engl 2014; 53:9462-5. [PMID: 25045133 PMCID: PMC4795922 DOI: 10.1002/anie.201403607] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Indexed: 11/06/2022]
Abstract
The first catalytic asymmetric carboannulation with allylsilanes is presented. The enantioselective [3+2] annulation is catalyzed using a scandium(III)/indapybox complex with tetrakis-[3,5-bis(trifluoromethyl)phenyl]-borate (BArF) to enhance catalytic activity and control stereoselectivity. Functionalized cyclopentanes containing a quaternary carbon center are derived from alkylidene oxindole, coumarin, and malonate substrates with high stereoselectivity. The enantioselective 1,4-conjugate addition and enantioselective lactone formation (by trapping of the β-silyl carbocation) is also described.
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Affiliation(s)
- Nicolas R. Ball-Jones
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616 (USA)
| | - Joseph J. Badillo
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616 (USA)
| | - Ngon T. Tran
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616 (USA)
| | - Annaliese K. Franz
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616 (USA)
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46
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Gu J, Ma C, Li QZ, Du W, Chen YC. β,γ-Regioselective Inverse-Electron-Demand Aza-Diels–Alder Reactions with α,β-Unsaturated Aldehydes via Dienamine Catalysis. Org Lett 2014; 16:3986-9. [PMID: 25046480 DOI: 10.1021/ol501814p] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jing Gu
- Key
Laboratory of Drug-Targeting and Drug Delivery System of the Ministry
of Education, West China School of Pharmacy, and State Key Laboratory
of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chao Ma
- Key
Laboratory of Drug-Targeting and Drug Delivery System of the Ministry
of Education, West China School of Pharmacy, and State Key Laboratory
of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Qing-Zhu Li
- Key
Laboratory of Drug-Targeting and Drug Delivery System of the Ministry
of Education, West China School of Pharmacy, and State Key Laboratory
of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wei Du
- Key
Laboratory of Drug-Targeting and Drug Delivery System of the Ministry
of Education, West China School of Pharmacy, and State Key Laboratory
of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ying-Chun Chen
- Key
Laboratory of Drug-Targeting and Drug Delivery System of the Ministry
of Education, West China School of Pharmacy, and State Key Laboratory
of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- College
of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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47
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Ball-Jones NR, Badillo JJ, Tran NT, Franz AK. Catalytic Enantioselective Carboannulation with Allylsilanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403607] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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