1
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Wang Z, Chen J, Yu L, Zhang C, Rao W, Chan PWH. Gold-Catalyzed Cascade Cycloisomerization of 3-Allyloxy-1,6-diynes to Cyclopropyl- and Cyclobutyl-Fused Benzofurans and Chromen-3a(1 H)-ols. Org Lett 2024; 26:2635-2640. [PMID: 38526487 DOI: 10.1021/acs.orglett.4c00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
A synthetic method for the efficient preparation of partially hydrogenated benzo[f]cyclobuta[cd]cyclopenta[h]benzofurans and cyclopropa[c]chromen-3a(1H)-ols that relies on the gold(I)-catalyzed cascade cycloisomerization of 3-allyloxy-1,6-diynes is described.
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Affiliation(s)
- Zeliang Wang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Jichao Chen
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Lei Yu
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Chunyu Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Weidong Rao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
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2
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Zhu S, Ye Z, Chen MJ, Wang L, Wang YZ, Zhang KN, Li WB, Ding HM, Li Z, Zhang J. Mechanistic study on the side arm effect in a palladium/Xu-Phos-catalyzed enantioselective alkoxyalkenylation of γ-hydroxyalkenes. Nat Commun 2023; 14:7611. [PMID: 37993423 PMCID: PMC10665319 DOI: 10.1038/s41467-023-43202-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/03/2023] [Indexed: 11/24/2023] Open
Abstract
Recently, the asymmetric bifunctionalization of alkenes has received much attention. However, the development of enantioselective alkoxyalkenylation has posed a considerable challenge and has lagged largely behind. Herein, we report a new palladium-catalyzed enantioselective alkoxyalkenylation reaction, using a range of primary, secondary, and tertiary γ-hydroxy-alkenes with alkenyl halides. By employing newly identified Xu-Phos (Xu8 and Xu9) with a suitable side-arm adjacent to the PCy2 motif, a series of allyl-substituted tetrahydrofurans were obtained in good yields with up to 95% ee. Besides (E)-alkenyl halides, (Z)-alkenyl halide was also examined and provided the corresponding (Z)-product as a single diastereomer, supporting a stereospecific oxidative addition and reductive elimination step. Moreover, deuterium labeling and VCD experiments were employed to determine a cis-oxypalladation mechanism. DFT calculations helped us gain deeper insight into the side-arm effect on the chiral ligand. Finally, the practicability of this method is further demonstrated through a gram-scale synthesis and versatile transformations of the products.
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Affiliation(s)
- Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Zihao Ye
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China
| | - Ming-Jie Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Lei Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, P.R. China
| | - Yu-Zhuo Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Ke-Nan Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Wen-Bo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Han-Ming Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China.
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P.R. China.
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P.R. China.
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, P.R. China.
- School of Chemistry & Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, P.R. China.
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3
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Sar S, Ghorai P. An Intramolecular Umpolung Cascade Kukhtin-Ramirez Reaction/Michael Addition-Initiated Cyclization: Stereoselective Synthesis of Tetrasubstituted Cyclopropane Fused 1-Indanones. Org Lett 2023; 25:1946-1951. [PMID: 36920108 DOI: 10.1021/acs.orglett.3c00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Herein, we disclose a fascinating highly stereoselective P(NMe2)3 mediated intramolecular deoxygenative umpolung cascade Michael addition-initiated cyclopropanation with a diverse substrate adaptability. This methodology creates a new horizon for expedient access to valuable 6,5,3-fused scaffolds having an all-carbon quaternary stereocenter via Kukhtin-Ramirez (K-R) adduct formation, with excellent diastereoselectivity and yields under metal-free ambient conditions. A few functional group transformations have also been performed successfully. Additionally, an asymmetric catalytic attempt using (R)-(+)-H8-BINOL has delivered good enantioselectivity.
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Affiliation(s)
- Suman Sar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal 462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal 462066, India
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4
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Tu Y, Xu B, Wang Q, Dong H, Zhang ZM, Zhang J. Palladium/TY-Phos-Catalyzed Asymmetric Heck/Tsuji-Trost Reaction of o-Bromophenols with 1,3-Dienes. J Am Chem Soc 2023; 145:4378-4383. [PMID: 36795796 DOI: 10.1021/jacs.2c12752] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
2,3-Dihydrobenzofurans are crucial building blocks in the synthesis of natural products and pharmaceutical molecules. However, their asymmetric synthesis has been a long-standing formidable challenge so far. In this work, we developed a highly enantioselective Pd/TY-Phos-catalyzed Heck/Tsuji-Trost reaction of o-bromophenols with various 1,3-dienes, allowing expedient access to chiral substituted 2,3-dihydrobenzofurans. This reaction features excellent regio- and enantiocontrol, high functional group tolerance, and easy scalability. More importantly, the demonstration of this method as a highly valuable tool for the construction of optically pure natural products (R)-tremetone and fomannoxin is highlighted.
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Affiliation(s)
- Youshao Tu
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Bing Xu
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Qian Wang
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Honglin Dong
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Zhan-Ming Zhang
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
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5
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Zhang J, Xu W, Xu MH. Low Coordination State Rh I -Complex as High Performance Catalyst for Asymmetric Intramolecular Cyclopropanation: Construction of penta-Substituted Cyclopropanes. Angew Chem Int Ed Engl 2023; 62:e202216799. [PMID: 36602264 DOI: 10.1002/anie.202216799] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/06/2023]
Abstract
A simple, broad-scope rhodium(I)/chiral diene catalytic system for challenging asymmetric intramolecular cyclopropanation of various tri-substituted allylic diazoacetates was successfully developed. The low coordination state RhI -complex exhibits an extraordinarily high degree of tolerance to the variation in the extent of substitution of the allyl double bond, thus allowing the efficient construction of a wide range of penta-substituted, fused-ring cyclopropanes bearing three contiguous stereogenic centers, including two quaternary carbon stereocenters, in a highly enantioselective manner with ease at catalyst loading as low as 0.1 mol %. The stereoinduction mode of this RhI -carbene-directed asymmetric intramolecular cyclopropanation was investigated by DFT calculations, indicating that π-π stacking interactions between the aromatic rings of chiral diene ligand and diazo substrate play a key role in the control of the reaction enantioselectivity.
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Affiliation(s)
- Junyou Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Weici Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ming-Hua Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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6
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Bharath Kumar P, Raju CE, Chandubhai PH, Sridhar B, Karunakar GV. Gold(I)-Catalyzed Regioselective Cyclization to Access Cyclopropane-Fused Tetrahydrobenzochromenes. Org Lett 2022; 24:6761-6766. [DOI: 10.1021/acs.orglett.2c02564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Perla Bharath Kumar
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Chittala Emmaniel Raju
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Patel Hinal Chandubhai
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Balasubramanian Sridhar
- Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Galla V. Karunakar
- Fluoro and Agrochemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
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7
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Mishra S, Urvashi, Patil NT. Chiral Ligands for Au(I), Au(III), and Au(I)/Au(III) Redox Catalysis. Isr J Chem 2022. [DOI: 10.1002/ijch.202200039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sampoorna Mishra
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Urvashi
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
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8
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Total synthesis of merodesmosine. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Wang Y, Wu S, Wang L, Sun J, Yan CG, Han Y. Synthesis of dihydropyrazoles enabled by Pd-catalyzed carboamination of alkenyl hydrazones with alkenyl and aryl halides. Org Chem Front 2022. [DOI: 10.1039/d2qo00653g] [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 synthesis of dihydropyrazoles enabled by Pd-catalyzed carboamination of alkenyl hydrazones with alkenyl or aryl halides is described. This method provides a practical and efficient route towards the synthesis of functionalized dihydropyrazoles.
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Affiliation(s)
- Yinqiang Wang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Shuaijie Wu
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Lei Wang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ying Han
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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10
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Michelet V. Gold-Catalyzed Reactions Towards Diversity: From Simple Substrates to Functionalized Carbo- and Heterocycles. CHEM REC 2021; 21:3884-3896. [PMID: 34747571 DOI: 10.1002/tcr.202100253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/23/2021] [Indexed: 12/29/2022]
Abstract
The field of gold catalysis has been in constant expansion during the last twenty years. Based on the precept of π-activation of unsaturated simple substrates, several new rearrangements have been discovered, implying aryl, alkyne, alkene or keto derivatives as key partners. In this personal account, the main contributions in the field of gold catalysis from our group will be highlighted, emphasizing the recent reports, starting from 1,6- and 1,5-enynes and then moving to keto-ynes derivatives. The gold-catalyzed reactions will be presented starting from classical skeletal rearrangements (cycloisomerization) and then domino processes. In each part, the presentation of asymmetric versions will be highlighted.
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Affiliation(s)
- Véronique Michelet
- Côte d'Azur University, Institut de Chimie de Nice, UMR 7272 CNRS, Valrose Park, Faculty of Sciences, 06108, Nice Cedex 2, France
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11
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Zhao G, Wu Y, Wu HH, Yang J, Zhang J. Pd/GF-Phos-Catalyzed Asymmetric Three-Component Coupling Reaction to Access Chiral Diarylmethyl Alkynes. J Am Chem Soc 2021; 143:17983-17988. [PMID: 34699199 DOI: 10.1021/jacs.1c09742] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Significant attention has been given in the past few years to the selective transformations of N-tosylhydrazones to various useful compounds. However, the development of enantioselective versions poses considerable challenges. Herein we report a Pd-catalyzed enantioselective three-component coupling of N-tosylhydrazone, aryl halide, and terminal alkyne under mild conditions utilizing a novel chiral sulfinamide phosphine ligand (GF-Phos), which provides a facile access to chiral diarylmethyl alkynes, which are useful synthons in organic synthesis as well as exist as the skeleton in many bioactive molecules. A pair of enantiomers of the product could be easily prepared using the same chiral ligand by simply changing the aryl substituents of the N-tosylhydrazone and aryl halide. The salient features of this reaction include the readily available starting materials, general substrate scope, high enantioselectivity, ease of scale-up, mild reaction conditions, and versatile transformations.
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Affiliation(s)
- Guofeng Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People's Republic of China
| | - Yi Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People's Republic of China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People's Republic of China
| | - Junfeng Yang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People's Republic of China.,Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
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12
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Zuccarello G, Escofet I, Caniparoli U, Echavarren AM. New-Generation Ligand Design for the Gold-Catalyzed Asymmetric Activation of Alkynes. Chempluschem 2021; 86:1283-1296. [PMID: 34472729 PMCID: PMC8457203 DOI: 10.1002/cplu.202100232] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Indexed: 01/01/2023]
Abstract
Gold(I) catalysts are ideal for the activation of alkynes under very mild conditions. However, unlike allenes or alkenes, the triple bond of alkynes cannot be prochiral. In addition, the linear coordination displayed by gold(I) complexes places the chiral ligand far away from the substrate resulting in an inefficient transfer of chiral information. This poses a significant challenge for the achievement of high enantiocontrol in gold(I)-catalyzed reactions of alkynes. Although considerable progress on enantioselective gold(I)-catalyzed transformations has recently been achieved, the asymmetric activation of non-prochiral alkyne-containing small molecules still represents a great challenge. Herein we summarize recent advances in intra- and intermolecular enantioselective gold(I)-catalyzed reactions involving alkynes, discussing new chiral ligand designs that lie at the basis of these developments. We also focus on the mode of action of these catalysts, their possible limitations towards a next-generation of more efficient ligand designs. Finally, square planar chiral gold(III) complexes, which offer an alternative to chiral gold(I) complexes, are also discussed.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Ulysse Caniparoli
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
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13
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Simultaneous construction of axial and planar chirality by gold/TY-Phos-catalyzed asymmetric hydroarylation. Nat Commun 2021; 12:4609. [PMID: 34326337 PMCID: PMC8322429 DOI: 10.1038/s41467-021-24678-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/30/2021] [Indexed: 11/24/2022] Open
Abstract
The simultaneous construction of two different chiralities via a simple operation poses considerable challenge. Herein a cationic gold-catalyzed asymmetric hydroarylation of ortho-alkynylaryl ferrocenes derivatives is developed, which enable the simultaneous construction of axial and planar chirality. The here identified TY-Phos derived gold complex is responsible for the high yield, good diastereoselectivity (>20:1 dr), high enantioselectivities (up to 99% ee) and mild conditions. The catalyst system also shows potential application in the synthesis of chiral biaryl compounds. The cause of high enantioselectivity of this hydroarylation is investigated with density functional theory caculation. The simultaneous construction of two different types of chiralities is challenging. Here, the authors report a cationic gold-catalyzed asymmetric hydroarylation of ortho-alkynylaryl ferrocene derivatives, which enabled the simultaneous construction of axial and planar chirality.
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14
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6-Enynes with Gold(I)-Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021; 60:9339-9344. [PMID: 33576560 PMCID: PMC8251978 DOI: 10.1002/anie.202017035] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 12/16/2022]
Abstract
Chiral gold(I)-cavitand complexes have been developed for the enantioselective alkoxycyclization of 1,6-enynes. This enantioselective cyclization has been applied for the first total synthesis of carbazole alkaloid (+)-mafaicheenamine C and its enantiomer, establishing its configuration as R. The cavity effect was also evaluated in the cycloisomerization of dienynes. A combination of experiments and theoretical studies demonstrates that the cavity of the gold(I) complexes forces the enynes to adopt constrained conformations, which results in the high observed regio- and stereoselectivities.
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Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
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15
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6‐Enynes with Gold(I)‐Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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16
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Jiang JJ, Wong MK. Recent Advances in the Development of Chiral Gold Complexes for Catalytic Asymmetric Catalysis. Chem Asian J 2021; 16:364-377. [PMID: 33386691 DOI: 10.1002/asia.202001375] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/29/2020] [Indexed: 12/12/2022]
Abstract
Asymmetric gold catalysis has been rapidly developed in the past ten years. Breakthroughs have been made by rational design and meticulous selection of chiral ligands. This review summarizes newly developed gold-catalyzed enantioselective organic transformations and recent progress in ligand design (since 2016), organized according to different types of chiral ligands, including bisphosphine ligands, monophosphine ligands, phosphite-derived ligands, and N-heterocyclic carbene ligands for asymmetric gold(I) catalysis as well as heterocyclic carbene ligands and oxazoline ligands for asymmetric gold(III) catalysis.
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Affiliation(s)
- Jia-Jun Jiang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Man-Kin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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17
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Abstract
Three- and four-membered rings, widespread motifs in nature and medicinal chemistry, have fascinated chemists ever since their discovery. However, due to energetic considerations, small rings are often difficult to assemble. In this regard, homogeneous gold catalysis has emerged as a powerful tool to construct these highly strained carbocycles. This review aims to provide a comprehensive summary of all the major advances and discoveries made in the gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their corresponding heterocyclic or heterosubstituted analogs.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Cristina Garcı A-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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18
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Lin T, Pan Z, Tu Y, Zhu S, Wu H, Liu Y, Li Z, Zhang J. Design and Synthesis of TY‐Phos and Application in Palladium‐Catalyzed Enantioselective Fluoroarylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008262] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tao‐Yan Lin
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Zhangjin Pan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Youshao Tu
- College of Chemistry and Life Science Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 China
| | - Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Hai‐Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China
| | - Yu Liu
- College of Chemistry and Life Science Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 China
| | - Zhiming Li
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
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19
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Lin TY, Pan Z, Tu Y, Zhu S, Wu HH, Liu Y, Li Z, Zhang J. Design and Synthesis of TY-Phos and Application in Palladium-Catalyzed Enantioselective Fluoroarylation of gem-Difluoroalkenes. Angew Chem Int Ed Engl 2020; 59:22957-22962. [PMID: 32893388 DOI: 10.1002/anie.202008262] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/07/2020] [Indexed: 01/10/2023]
Abstract
The first example of highly enantioselective fluoroarylation of gem-difluoroalkenes with aryl halides is presented by using a new chiral sulfinamide phosphine (Sadphos) type ligand TY-Phos. N-Me-TY-Phos can be easily synthesized on a gram scale from readily available starting materials in three steps. Salient features of this work including readily available starting materials, good yields, high enantioselectivities as well as broad substrate scope make this approach very practical and attractive. Notably, the asymmetric synthesis of an analogue of a biologically active molecule is also reported.
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Affiliation(s)
- Tao-Yan Lin
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhangjin Pan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Youshao Tu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China
| | - Shuai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yu Liu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
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20
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Chu H, Cheng J, Yang J, Guo Y, Zhang J. Asymmetric Dearomatization of Indole by Palladium/PC‐Phos‐Catalyzed Dynamic Kinetic Transformation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010164] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Haoke Chu
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Jie Cheng
- Stake Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai China
| | - Junfeng Yang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Yin‐Long Guo
- Stake Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
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21
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Chu H, Cheng J, Yang J, Guo YL, Zhang J. Asymmetric Dearomatization of Indole by Palladium/PC-Phos-Catalyzed Dynamic Kinetic Transformation. Angew Chem Int Ed Engl 2020; 59:21991-21996. [PMID: 32851748 DOI: 10.1002/anie.202010164] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Indexed: 01/08/2023]
Abstract
A palladium-catalyzed intermolecular dynamic kinetic asymmetric dearomatization of 3-arylindoles with internal alkynes was developed with the use of achiral Xantphos and chiral sulfinamide phosphine ligand (PC-Phos) as the co-ligands. This method could deliver various spiro[indene-1,3'-indole] compounds in good yields (up to 95 % yield) with up to 98 % ee. The salient features of the transformation include the use of readily available substrates, ease of scale-up and the versatile functionalization of the products. The mechanistic experiments gave some insights on active intermediates.
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Affiliation(s)
- Haoke Chu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Jie Cheng
- Stake Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Junfeng Yang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Yin-Long Guo
- Stake Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
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22
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Synergy of activating substrate and introducing C-H···O interaction to achieve Rh2(II)-catalyzed asymmetric cycloisomerization of 1,n-enynes. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9794-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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23
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Zhou F, Zhu L, Pan BW, Shi Y, Liu YL, Zhou J. Catalytic enantioselective construction of vicinal quaternary carbon stereocenters. Chem Sci 2020; 11:9341-9365. [PMID: 34094201 PMCID: PMC8162142 DOI: 10.1039/d0sc03249b] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This review summarizes the advances in the catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, highlights the application of known protocols in the total synthesis of natural products, and outlines the synthetic opportunities. This review summarizes the advances in catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, and outlines the synthetic opportunities.![]()
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Affiliation(s)
- Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China
| | - Lei Zhu
- School of Chemistry and Materials Science, Hubei Engineering University Hubei 432000 P. R. China
| | - Bo-Wen Pan
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yang Shi
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 510006 P. R. China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
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24
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Zhao S, Zang ZL, Li S, Wen X, Wang C, Guo J, He Y. Iridium-Catalyzed Cycloisomerization of N-Tethered 1,7-Enynes: Construction of an Azabicyclo[5.1.0]octene System. J Org Chem 2020; 85:9321-9330. [PMID: 32551602 DOI: 10.1021/acs.joc.0c00516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient method for the synthesis of azabicyclo[5.1.0]octenes through cycloisomerization of nitrogen-tethered 1,7-enynes catalyzed by [IrCp*Cl2]2 was developed. With appropriately designed substrates, this method could be easily employed to generate complex fused ring systems such as [6-6-3-7], [5-6-3-7], [7-6-3-7], and [8-6-3-7] ring systems, which enriches the diversity of the cyclopropane-fused polycycle library, and has potential applications in SAR studies of pharmaceutically interesting compounds and total synthesis of natural products.
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Affiliation(s)
- Sheng Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Zhong-Lin Zang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Siyu Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Xumei Wen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Chenhui Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Jian Guo
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
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25
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Tao M, Tu Y, Liu Y, Wu H, Liu L, Zhang J. Pd/Xiang-Phos-catalyzed enantioselective intermolecular carboheterofunctionalization under mild conditions. Chem Sci 2020; 11:6283-6288. [PMID: 32953024 PMCID: PMC7473404 DOI: 10.1039/d0sc01391a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/29/2020] [Indexed: 01/01/2023] Open
Abstract
A mild and practical Pd/Xiang-Phos-catalyzed enantioselective intermolecular carboheterofunctionalization reaction of 2,3-dihydrofurans is developed, leading to various optically active fused furoindolines and tetrahydrofurobenzofurans. The key to this transformation is employing two newly modified N-Me-Xiang-Phos ligands ((S, R S)- N-Me-X4/X5) as chiral ligands under mild conditions. Moreover, this synthetic methodology can be efficiently applied to a variety of complex polysubstituted heterocycles with high chemo-, regio-, and enantio-selectivities via introducing diverse substituents on furan rings, which were hard to access by other routes.
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Affiliation(s)
- Mengna Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Youshao Tu
- College of Chemistry and Life Science , Advanced Institute of Materials Science , Changchun University of Technology , 2055 Yanan Street , Changchun , 130012 , P. R. China
| | - Yu Liu
- College of Chemistry and Life Science , Advanced Institute of Materials Science , Changchun University of Technology , 2055 Yanan Street , Changchun , 130012 , P. R. China
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Lu Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Junliang Zhang
- Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 200438 , P. R. China .
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , CAS , 345 Lingling Road , Shanghai 200032 , P. R. China
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26
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Laher R, Marin C, Michelet V. When Gold Meets Perfumes: Synthesis of Olfactive Compounds via Gold-Catalyzed Cycloisomerization Reactions. Org Lett 2020; 22:4058-4062. [PMID: 32250122 DOI: 10.1021/acs.orglett.0c00843] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient, and mild synthetic route for the preparation of functionalized volatile oxa-bicyclo[4.1.0]-hept-4-ene (29 compounds, 44-98% isolated yields) has been developed relying on the association of IPrAuCl with NaBArF. The remarkable selectivity was demonstrated on a 1 g and 25 g scale with low catalyst loadings. The synthetic utility of these low-molecular-weight enols was further demonstrated by the derivatization of some adducts and by the unprecedented olfactory evaluation of all bicyclic derivatives.
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Affiliation(s)
- Romain Laher
- University Côte d'Azur, Institut de Chimie de Nice, UMR 7272 CNRS, Valrose Park, Faculty of Sciences, Nice 06108 CEDEX 2, France
| | - Christophe Marin
- Expressions Parfumées, 136 chemin de St Marc, Grasse 06130, France
| | - Véronique Michelet
- University Côte d'Azur, Institut de Chimie de Nice, UMR 7272 CNRS, Valrose Park, Faculty of Sciences, Nice 06108 CEDEX 2, France
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27
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Wang L, Zhang K, Wang Y, Li W, Chen M, Zhang J. Enantioselective Synthesis of Isoxazolines Enabled by Palladium‐Catalyzed Carboetherification of Alkenyl Oximes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912408] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 China
| | - Kenan Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Yuzhuo Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Mingjie Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 China
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28
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Wu G, Liu Y, Yang Z, Jiang T, Katakam N, Rouh H, Ma L, Tang Y, Ahmed S, Rahman AU, Huang H, Unruh D, Li G. Enantioselective assembly of multi-layer 3D chirality. Natl Sci Rev 2020; 7:588-599. [PMID: 34692078 PMCID: PMC8289020 DOI: 10.1093/nsr/nwz203] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 01/17/2023] Open
Abstract
The first enantioselective assembly of sandwich-shaped organo molecules has been achieved by conducting dual asymmetric Suzuki-Miyaura couplings and nine other reactions. This work also presents the first fully C-C anchored multi-layer 3D chirality with optically pure enantiomers. As confirmed by X-ray diffraction analysis that this chiral framework is featured by a unique C2 -symmetry in which a nearly parallel fashion consisting of three layers: top, middle and bottom aromatic rings. Unlike the documented planar or axial chirality, the present chirality shows its top and bottom layers restrict each other from free rotation, i.e., this multi-layer 3D chirality would not exist if either top or bottom layer is removed. Nearly all multi-layered compounds showed strong luminescence of different colors under UV irradiation, and several randomly selected samples displayed aggregation-induced emission (AIE) properties. This work is believed to have broad impacts on chemical, medicinal and material sciences including optoelectronic materials in future.
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Affiliation(s)
- Guanzhao Wu
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yangxue Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Zhen Yang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Tao Jiang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Nandakumar Katakam
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Liulei Ma
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Sultan Ahmed
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Anis U Rahman
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hongen Huang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Guigen Li
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
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29
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Liu X, Wang Y, Zhou J, Yu Y, Cao H. Triflic Acid-Catalyzed Cycloisomerization of 1,6-Enynes: Facile Access to Carbo- and Azaheterocycles. J Org Chem 2020; 85:2406-2414. [PMID: 31870155 DOI: 10.1021/acs.joc.9b03112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new and efficient strategy for enynes cyclization catalyzed by triflic acid has been described. Various valuable carbocycle-fused and heterocycle-fused ketones were easily accessed by the formation of new C-C and C-O bond under benign reaction conditions. This protocol also provides another opportunity to construct polycyclic single-nitrogen ketones via a cation-induced cascade cyclization of polyenynes. Furthermore, antiviral bioassays revealed that a few compounds exhibited good antiviral activity against tobacco mosaic virus at a concentration of 200 μg mL-1.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yuhan Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
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30
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Wang L, Zhang K, Wang Y, Li W, Chen M, Zhang J. Enantioselective Synthesis of Isoxazolines Enabled by Palladium‐Catalyzed Carboetherification of Alkenyl Oximes. Angew Chem Int Ed Engl 2020; 59:4421-4427. [DOI: 10.1002/anie.201912408] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/05/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Lei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 China
| | - Kenan Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Yuzhuo Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Mingjie Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 China
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31
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Inoue H, Phan Thi Thanh N, Fujisawa I, Iwasa S. Synthesis of Forms of a Chiral Ruthenium Complex Containing a Ru-C olefin(sp 2) Bond and Their Application to Catalytic Asymmetric Cyclopropanation Reactions. Org Lett 2020; 22:1475-1479. [PMID: 31990195 DOI: 10.1021/acs.orglett.0c00050] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organometallic complexes [Ru-Colefin(sp2)-Ru(II)-Pheox 2a-2d] containing a Ru-Colefin(sp2) bond have been prepared from unsaturated chiral oxazoline derivatives and evaluated for asymmetric cyclopropanation reactions. The corresponding optically active cyclopropanes were obtained with high yields and high stereoselectivities (≥99/<1 trans/cis, 99% trans ee). The enantioselectivities were found to be affected by the geminal substituent on the Ru-C(sp2) bond. In particular, Ru(II)-Prox catalyst 2c, in which there was no geminal substituent on the metal, was shown to have the highest enantioselectivities.
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Affiliation(s)
- Hayato Inoue
- Department of Applied Chemistry and Life Science , Toyohashi University of Technology , 1-1 Hibarigaoka , Tempaku, Toyohashi , Aichi 441-8580 , Japan
| | - Nga Phan Thi Thanh
- Department of Applied Chemistry and Life Science , Toyohashi University of Technology , 1-1 Hibarigaoka , Tempaku, Toyohashi , Aichi 441-8580 , Japan
| | - Ikuhide Fujisawa
- Department of Applied Chemistry and Life Science , Toyohashi University of Technology , 1-1 Hibarigaoka , Tempaku, Toyohashi , Aichi 441-8580 , Japan
| | - Seiji Iwasa
- Department of Applied Chemistry and Life Science , Toyohashi University of Technology , 1-1 Hibarigaoka , Tempaku, Toyohashi , Aichi 441-8580 , Japan
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32
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Qi SS, Jiang ZH, Chu MM, Wang YF, Chen XY, Ju WZ, Xu DQ. Regioselective catalytic asymmetric N-alkylation of isoxazol-5-ones with para-quinone methides. Org Biomol Chem 2020; 18:2398-2404. [DOI: 10.1039/d0ob00393j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A highly regioselective and enantioselective N-alkylation of isoxazol-5-ones with para-quinone methides has been developed to obtain enantioenriched N-diarylmethane substituted isoxazolinones with high yields and enantioselectivities.
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Affiliation(s)
- Suo-Suo Qi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Zhen-Hui Jiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Ming-Ming Chu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Yi-Feng Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Xue-Yang Chen
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Wan-Zhen Ju
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
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33
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Fu S, Liu B. Recent progress in the synthesis of limonoids and limonoid-like natural products. Org Chem Front 2020. [DOI: 10.1039/d0qo00203h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recent progress in syntheses of limonoids and limonoid-like natural products is reviewed. The current “state-of-art” advance on novel synthetic strategy are summarized and future outlook will be presented.
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Affiliation(s)
- Shaomin Fu
- Key Laboratory of Green Chemistry &Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Bo Liu
- Key Laboratory of Green Chemistry &Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
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34
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Zhang P, Han J, Zhang J. Pd/PC‐Phos‐Catalyzed Enantioselective Intermolecular Denitrogenative Cyclization of Benzotriazoles with Allenes and N‐Allenamides. Angew Chem Int Ed Engl 2019; 58:11444-11448. [DOI: 10.1002/anie.201904805] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Pei‐Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Jie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
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36
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Zuccarello G, Mayans JG, Escofet I, Scharnagel D, Kirillova MS, Pérez-Jimeno AH, Calleja P, Boothe JR, Echavarren AM. Enantioselective Folding of Enynes by Gold(I) Catalysts with a Remote C2-Chiral Element. J Am Chem Soc 2019; 141:11858-11863. [PMID: 31290658 DOI: 10.1021/jacs.9b06326] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chiral gold(I) catalysts have been designed based on a modified JohnPhos ligand with a distal C2-2,5-diarylpyrrolidine that creates a tight binding cavity. The C2-chiral element is close to where the C-C bond formation takes place in cyclizations of 1,6-enynes. These chiral mononuclear catalysts have been applied for the enantioselective 5-exo-dig and 6-endo-dig cyclization of different 1,6-enynes as well as in the first enantioselective total synthesis of three members of the carexane family of natural products. Opposite enantioselectivities have been achieved in seemingly analogous reactions of 1,6-enynes, which result from different chiral folding of the substrates based on attractive aryl-aryl interactions.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
| | - Joan G Mayans
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
| | - Dagmar Scharnagel
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Mariia S Kirillova
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Alba H Pérez-Jimeno
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
| | - Pilar Calleja
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Jordan R Boothe
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
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37
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Li CL, Yu ZX. Asymmetric Synthesis of Azepine-Fused Cyclobutanes from Yne-Methylenecyclopropanes Involving Cyclopropanation/C–C Cleavage/Wagner–Meerwein Rearrangement and Reaction Mechanism. J Org Chem 2019; 84:9913-9928. [DOI: 10.1021/acs.joc.9b01071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chen-Long Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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38
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Zhang P, Han J, Zhang J. Pd/PC‐Phos‐Catalyzed Enantioselective Intermolecular Denitrogenative Cyclization of Benzotriazoles with Allenes and N‐Allenamides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pei‐Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Jie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
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39
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Zhang Y, Li Y, Pan B, Xu H, Liang H, Jiang X, Liu B, Tse M, Qiu L. Enantioselective Syntheses of Axially Chiral Phosphonates or Phosphine Oxides via Asymmetric Suzuki Reactions with Chiral Sulfinamide Monophosphine Ligands. ChemistrySelect 2019. [DOI: 10.1002/slct.201900980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaqi Zhang
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Yongsu Li
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Bendu Pan
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Hao Xu
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Hao Liang
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Xiaoding Jiang
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
| | - Binyun Liu
- Guangdong Toneset Science & Technology Co., LtdLiangtian Town, Baiyun District Guangzhou 510288 China
| | - Man‐Kin Tse
- Guangzhou Lee & Man Technology Company Limited 8 Huanshi Avenue South, Nansha Guangzhou 511457 China
| | - Liqin Qiu
- School of ChemistryGuangdong Key Lab of Chiral Molecules and Drug DiscoverySun Yat-Sen University No. 135 Xingangxi Road Guangzhou 510275 People's Republic of China
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40
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Wu Y, Xu B, Liu B, Zhang ZM, Liu Y. A new trifluoromethylated sulfonamide phosphine ligand for Ag(i)-catalyzed enantioselective [3 + 2] cycloaddition of azomethine ylides. Org Biomol Chem 2019; 17:1395-1401. [PMID: 30601527 DOI: 10.1039/c8ob02922a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A newly developed Ming-Phos ligand with a 3,5-bis(trifluoromethyl)phenyl substituent was demonstrated to be highly efficient for Ag-catalyzed asymmetric [3 + 2] cycloaddition reactions of azomethine ylides with maleimides, cyclopentene-1,3-diones, and N-(2-t-butylphenyl)maleimide. Being easily prepared on the gram scale in one step, the ligand in combination with a Ag catalyst enables the synthesis of a variety of highly functionalized bicyclic pyrrolidine derivatives in good yields and excellent enantioselectivities under mild conditions.
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Affiliation(s)
- Yuanqi Wu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
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41
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Cecchini C, Cera G, Lanzi M, Marchiò L, Malacria M, Maestri G. Diastereoselective bicyclization of enynols via gold catalysis. Org Chem Front 2019. [DOI: 10.1039/c9qo00963a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Steering the regiochemical outcome with a cationic gold–phosphite catalyst.
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Affiliation(s)
- Chiara Cecchini
- Università di Parma
- Dipartimento di Scienze Chimiche
- 43124 Parma
- Italy
| | - Gianpiero Cera
- Università di Parma
- Dipartimento di Scienze Chimiche
- 43124 Parma
- Italy
| | - Matteo Lanzi
- Università di Parma
- Dipartimento di Scienze Chimiche
- 43124 Parma
- Italy
| | - Luciano Marchiò
- Università di Parma
- Dipartimento di Scienze Chimiche
- 43124 Parma
- Italy
| | - Max Malacria
- Sorbonne Université
- Institut Parisien de Chimie Moleculaire
- UMR 8232
- 75252 Paris
- France
| | - Giovanni Maestri
- Università di Parma
- Dipartimento di Scienze Chimiche
- 43124 Parma
- Italy
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