1
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Jagannathan JR, Ma Y, Curole BJ, Grayson SM, Fenton OS, Leibfarth FA. Regioselective Palladium-Catalyzed Chain-Growth Allylic Amination Polymerization of Vinyl Aziridines. J Am Chem Soc 2024; 146:15264-15274. [PMID: 38801413 DOI: 10.1021/jacs.4c02599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Organometallic-mediated chain growth polymerization of readily accessible chemical building blocks is responsible for important commercial and technological advances in polymer science, but the incorporation of heteroatoms into the polymer backbone through these mechanisms remains a challenge. Transition metal π-allyl complexes are well-developed organometallic intermediates for carbon-heteroatom bond formation in small-molecule catalysis yet remain underexplored in polymer science. Here, we developed a regioselective palladium-phosphoramidite-catalyzed chain-growth allylic amination polymerization of vinyl aziridines for the synthesis of novel nitrogen-rich polymers via ambiphilic π-allyl complexes. The polymerization accessed a linear microstructure with four carbons between each nitrogen, which is challenging to achieve through other chain-growth polymerization approaches. The highly regioselective allylic amination polymerization demonstrated the characteristics of a controlled polymerization and was able to achieve molar masses exceeding 20 kg mol-1 with low dispersities (D̵ < 1.3). The identification of the polymer structure and well-defined chain ends were supported by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and chain extension experiments demonstrate opportunities for building more complex materials from this method. A Hammett study was performed to understand the role of the catalyst and monomer structure on regioselectivity, and the data supported a mechanism wherein regioselectivity was primarily controlled by the ligand-metal complex. Postpolymerization desulfonylation provided access to a novel polyamine that demonstrated broad anticancer activity in vitro, which highlights the benefits of unlocking novel polyamine microstructures through regioselective chain-growth allylic amination polymerization.
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Affiliation(s)
- Jake R Jagannathan
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Yutian Ma
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Brennan J Curole
- Department of Chemistry, Tulane University, 6400 Freret Street, 2015 Percival Stern Hall, New Orleans, Louisiana 70118, United States
| | - Scott M Grayson
- Department of Chemistry, Tulane University, 6400 Freret Street, 2015 Percival Stern Hall, New Orleans, Louisiana 70118, United States
| | - Owen S Fenton
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Frank A Leibfarth
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
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2
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Zhang FP, Wang RH, Li JF, Chen H, Hari Babu M, Ye M. Intermolecular Carbophosphination of Alkynes with Phosphole Oxides via Ni-Al Bimetal-Catalyzed C-P Bond Activation. Angew Chem Int Ed Engl 2023; 62:e202314701. [PMID: 37846814 DOI: 10.1002/anie.202314701] [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: 09/30/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
Intermolecular carbophosphination reaction of alkynes or alkenes with unreactive C-P bonds remains an elusive challenge. Herein, we used a Ni-Al bimetallic catalyst to realize an intermolecular carbophosphination reaction of alkynes with 5-membered phosphole oxides, providing a series of 7-membered phosphepines in up to 94 % yield.
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Affiliation(s)
- Feng-Ping Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Rong-Hua Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Jiang-Fei Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Hao Chen
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Madala Hari Babu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Mengchun Ye
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
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3
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Wang Q, Fan T, Song J. Cooperative Isothiourea/Iridium-Catalyzed Asymmetric Annulation Reactions of Vinyl Aziridines with Pentafluorophenyl Esters. Org Lett 2023. [PMID: 36815719 DOI: 10.1021/acs.orglett.2c04124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Chiral γ-lactam-containing skeletons are important motifs in bioactive natural products, pharmaceuticals, and bioactive molecules. Herein, we report a general and modular platform to access chiral γ-lactam compounds via an ITU/Ir cooperatively catalyzed [3 + 2] asymmetric annulation reaction of vinyl aziridines with pentafluorophenyl esters. Through the Lewis base and transition metal cooperative catalytic regime, a broad range of optically active γ-lactams were generated in good yields (up to 92%) with high asymmetric induction (up to 98% ee). Furthermore, the utility of this synthetic protocol was also demonstrated by the expedient preparation of diverse enantioenriched architectures.
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Affiliation(s)
- Qiannan Wang
- Institutes of Physical Science and Information Technology, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230601, China
| | - Tao Fan
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jin Song
- Institutes of Physical Science and Information Technology, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230601, China
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4
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Nair VV, Arunprasath D, Solai P, Sekar G. Synergistic Dual Amine/Transition Metal Catalysis ‐ Recent Advances. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Pandidurai Solai
- IIT Madras: Indian Institute of Technology Madras Department of Chemistry INDIA
| | - Govindasamy Sekar
- Indian Institute of Technology Madras Department of Chemistry IIT Campus 600 036 Chennai INDIA
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5
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Chakraborty N, Das B, Rajbongshi KK, Patel BK. Combined Power of Organo‐ and Transition Metal Catalysis in Organic Synthesis. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nikita Chakraborty
- Indian Institute of Technology Guwahati Chemistry Indian Institute of Technology GuwahatiDepartment of ChemistryNorth Guwahati 781039 Guwahati INDIA
| | - Bubul Das
- Indian Institute of Technology Guwahati Chemistry Indian Institute of Technology GuwahatiDepartment of ChemistryNorth Guwahati 781039 Guwahati INDIA
| | - Kamal K. Rajbongshi
- Indian Institute of Technology Guwahati Chemistry Indian Institute of Technology GuwahatiDepartment of ChemistryNorth Guwahati 781039 Guwahati INDIA
| | - Bhisma K Patel
- Indian Institute of Technology Guwahati Chemistry North Guwahati-781 039 781 039 Guwahati INDIA
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6
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Zhang J, Chen Y, Wang Q, Shen J, Liu Y, Deng W. Transition Metal-Catalyzed Asymmetric Cyclizations Involving Allyl or Propargyl Heteroatom-Dipole Precursors. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202206028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Li YY, Li S, Fan T, Zhang ZJ, Song J, Gong LZ. Enantioselective Formal [4 + 3] Annulations to Access Benzodiazepinones and Benzoxazepinones via NHC/Ir/Urea Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04541] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yang-Yang Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Shuai Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Tao Fan
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Zi-Jing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Jin Song
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Hefei, 230026, China
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8
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Wang J, Zhao L, Li C, Zhao L, Zhao K, Hu Y, Hu L. Iridium‐Catalyzed [4+3] Cyclization of
ortho
‐Tosylaminophenyl‐Substituted
para
‐Quinone Methides with Vinylic Oxiranes/Vinyl Aziridines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Junwei Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Lin Zhao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Caihong Li
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Lei Zhao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Kun Zhao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Yang Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine School of Pharmacy Nanjing University of Chinese Medicine Nanjing P. R. China
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9
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Yang C, Yang ZX, Ding CH, Xu B, Hou XL. Development of Dipolarophiles for Catalytic Asymmetric Cycloadditions through Pd-π-Allyl Zwitterions. CHEM REC 2021; 21:1442-1454. [PMID: 33570239 DOI: 10.1002/tcr.202000177] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/22/2021] [Indexed: 02/03/2023]
Abstract
The development of new and efficient methodology for the construction of optically active molecules is of great interest in both synthetic organic and medicinal chemistry fields. To this end, the personal account summarizes our studies on the development of electron-deficient alkenes, allenes, and alkynes containing single activator as new dipolarophiles for Pd-catalyzed asymmetric cycloaddition reactions. These new dipolarophiles can participate in Pd-catalyzed asymmetric [3+2] and [4+2] cycloadditions through Pd-π-allyl 1,3- and 1,4-zwitterions in-situ generated by the reaction of Pd(0) catalyst with vinyl aziridines, vinyl epoxides, vinyl cyclopropanes, 4-vinyl-1,3-dioxan-2-ones, and vinyl benzoxazinanones. These [3+2] and [4+2] cycloadditions provide efficient approaches to a wide range of enantiomerically enriched five- and six-membered ring compounds containing contiguous chiral centers with high to excellent chemo-, diastereo-, and enantioselectivities. The utilities of these protocols are demonstrated by transformation of the cycloadducts into other useful chiral building blocks. DFT calculations reveal the dissimilar reactivity of different electron deficient alkenes and rationalize the mechanism and stereo-control of the reaction. A Pd-catalyzed inverse [3+2] cycloaddition is disclosed.
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Affiliation(s)
- Cun Yang
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, 200444, P. R. of China
| | - Zhi-Xiong Yang
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, 200444, P. R. of China
| | - Chang-Hua Ding
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, 200444, P. R. of China
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, 200444, P. R. of China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), 345 Lingling Road, Shanghai, 200032, P. R. of China
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10
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Xiao S, Chen B, Jiang Q, He L, Chu WD, He CY, Liu QZ. Palladium-catalyzed asymmetric [3 + 2] cycloaddition of vinyl aziridines and α,β-unsaturated imines generated in situ from aryl sulfonyl indoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00408e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The first palladium-catalyzed asymmetric formal [3 + 2] cycloaddition of vinyl aziridines and in situ generated unsaturated imines has been established.
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Affiliation(s)
- Shan Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Bo Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Qin Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Long He
- College of Chemistry and Materials Engineering
- Guiyang University
- Guiyang 550005
- China
| | - Wen-Dao Chu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Cheng-Yu He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
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11
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de la Cruz-Sánchez P, Pàmies O. Metal-π-allyl mediated asymmetric cycloaddition reactions. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Wu SL, Li N, Yin GW, Xu Z, Ye F, Li L, Cui YM, Xu LW. Catalytic asymmetric cycloaddition of unsymmetrical EWG-activated alkenes to fully substituted pyrrolidines bearing three different carbonyl groups. Chem Commun (Camb) 2019; 55:14363-14366. [PMID: 31720613 DOI: 10.1039/c9cc07738c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A unique 1,3-dipolar [3+2] cycloaddition of alkyl 4-oxo-4-arylbut-2-enoates bearing two different electron-withdrawing groups was completed by using the silver/(R)-DTBM-Segphos catalyst system, which gives the corresponding fully substituted pyrrolidines with four stereogenic centers in good yields and with excellent enantioselectivities (up to 98% ee).
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Affiliation(s)
- Shi-Lu Wu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
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13
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Khan I, Shah BH, Zhao C, Xu F, Zhang YJ. Pd-Catalyzed Asymmetric Allylic Cycloaddition of N-Containing Allylic Carbonates with Isocyanates. Org Lett 2019; 21:9452-9456. [DOI: 10.1021/acs.orglett.9b03662] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ijaz Khan
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Babar Hussain Shah
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Can Zhao
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Feng Xu
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital South Campus, 6600 Nanfeng Highway, Shanghai 201400, P.R. China
| | - Yong Jian Zhang
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
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14
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Žabka M, Kocian A, Bilka S, Andrejčák S, Šebesta R. Transformation of Racemic Azlactones into Enantioenriched Dihydropyrroles and Lactones Enabled by Hydrogen-Bond Organocatalysis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Matej Žabka
- Department of Organic Chemistry; Faculty of Natural Science; Comenius University in Bratislava; Mlynska dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Adrián Kocian
- Department of Organic Chemistry; Faculty of Natural Science; Comenius University in Bratislava; Mlynska dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Stanislav Bilka
- Department of Organic Chemistry; Faculty of Natural Science; Comenius University in Bratislava; Mlynska dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Samuel Andrejčák
- Department of Organic Chemistry; Faculty of Natural Science; Comenius University in Bratislava; Mlynska dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry; Faculty of Natural Science; Comenius University in Bratislava; Mlynska dolina, Ilkovičova 6 84215 Bratislava Slovakia
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15
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Wang K, Li Y, Ma G, Yi M, Zhu B. Highly Efficient and Diastereoselective Construction of Tricyclic Pyrrolidine‐Fused Benzo[
b
]thiophene 1,1‐dioxide Derivatives
via
1,3‐Dipolar [3 + 2] Cycloaddition. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kai‐Kai Wang
- College of Chemistry and Chemical EngineeringXinxiang University Xinxiang 453000 People's Republic of China
| | - Yan‐Li Li
- Medical CollegeXinxiang University Xinxiang 453000 People's Republic of China
| | - Guo‐Yang Ma
- College of Chemistry and Chemical EngineeringXinxiang University Xinxiang 453000 People's Republic of China
| | - Meng‐Hao Yi
- College of Chemistry and Chemical EngineeringXinxiang University Xinxiang 453000 People's Republic of China
| | - Bao‐Ku Zhu
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationZhejiang University Hangzhou 310058 People's Republic of China
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16
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Kamlar M, Franc M, Císařová I, Gyepes R, Veselý J. Formal [3+2] cycloaddition of vinylcyclopropane azlactones to enals using synergistic catalysis. Chem Commun (Camb) 2019; 55:3829-3832. [PMID: 30869671 DOI: 10.1039/c8cc06500d] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The present study reports the asymmetric cyclization of enals with vinylcyclopropane azlactones efficiently catalyzed by the combination of achiral Pd(0) complexes and chiral secondary amines. Corresponding spirocyclic azlactones were produced in high yields with moderate diastereoselectivities and excellent enantioselectivities. This protocol provides an efficient and easily-performed route to spirocyclic scaffolds, and densely functionalized cyclopentanes containing quaternary carbon centers.
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Affiliation(s)
- Martin Kamlar
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Praha 2, Czech Republic.
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17
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Wei HR, Xing YY, Liu JB, Wang WJ, Huang F, Sun CZ, Chen DZ. A mechanism exploration of stereodivergent coupling of aldehydes and alkynes catalyzed synergistically by rhodium and amine. Org Chem Front 2019. [DOI: 10.1039/c9qo00667b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stereodivergent coupling of alkynes and aldehydes with a synergistic catalyst approach using rhodium and amine.
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Affiliation(s)
- Hao-Ran Wei
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - Yang-Yang Xing
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - Jian-Biao Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - Wen-Juan Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - Fang Huang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - Chuan-Zhi Sun
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
| | - De-Zhan Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
- Shandong Normal University
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18
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Cao J, Liu JY, Zhang YM, Wang ZY, Xu PF. Synergistic promotion by intramolecular hydrogen bonding: a bi-functionally catalyzed cascade reaction for the synthesis of enantiopure chromenopyrrolidines. Org Chem Front 2019. [DOI: 10.1039/c8qo01208c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An effective organocatalytic asymmetric cascade reaction of o-hydroxy aromatic aldimines and β,γ-unsaturated-α-ketoesters was developed.
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Affiliation(s)
- Jian Cao
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P.R. China
- Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-Containing Mineral Resources & School of Mineral Processing and Bioengineering
| | - Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P.R. China
| | - Yi-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P.R. China
| | - Zhu-Yin Wang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P.R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P.R. China
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19
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Lv XJ, Chen YH, Liu YK. Two Competitive but Switchable Organocatalytic Cascade Reaction Pathways: The Diversified Synthesis of Chiral Acetal-Containing Bridged Cyclic Compounds. Org Lett 2018; 21:190-195. [PMID: 30576161 DOI: 10.1021/acs.orglett.8b03654] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The organocatalytic enantioselective synthesis of methanobenzodioxepine derivatives bearing a 6,6,5-bridged ring system is presented. The m-CPBA-triggered in situ α-oxidation of β-oxoesters to provide the required but unstable α-hydroxy-β-dicarbonyl substrates is the key to this three-step sequence, providing the desired cyclic acetals with excellent stereoselectivities containing two bridgehead and one fully substituted stereocenters. It is noteworthy that the absence of m-CPBA furnished the acetal products bearing a 6,6,6-bridged ring system with similar good results from the same starting materials.
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Affiliation(s)
- Xue-Jiao Lv
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
| | - Ying-Han Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
| | - Yan-Kai Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266003 , China
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20
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Yang PJ, Qi L, Liu Z, Yang G, Chai Z. Lewis Acid Catalyzed Dynamic Kinetic Asymmetric Transformation of Racemic N-Sulfonylaziridines. J Am Chem Soc 2018; 140:17211-17217. [DOI: 10.1021/jacs.8b10217] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Pei-Jun Yang
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Ling Qi
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Zhen Liu
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Gaosheng Yang
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Zhuo Chai
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
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21
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Spielmann K, Tosi E, Lebrun A, Niel G, van der Lee A, de Figueiredo RM, Campagne JM. Vinyl-aziridines and cyclopropanes in Pd-catalyzed (3+2)-cycloaddition reactions with cyclic N-sulfonyl imines. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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You ZH, Chen YH, Tang Y, Liu YK. Organocatalytic Asymmetric Synthesis of Spiro-Bridged and Spiro-Fused Heterocyclic Compounds Containing Chromane, Indole, and Oxindole Moieties. Org Lett 2018; 20:6682-6686. [PMID: 30354166 DOI: 10.1021/acs.orglett.8b02731] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Following the reactivity inversion strategy, two different two-step sequences were designed and successfully applied to the asymmetric synthesis of spiro-bridged and spiro-fused heterocyclic compounds, which combined chromane, indole, and oxindole, three potential pharmacophores, in one molecule. The power of these two organocatalytic pathways is underscored by mild reaction conditions and high efficiency in the production of synthetically challenging, but biologically important heterocyclic products, which could be transformed into more biologically interesting heterocyclic structures.
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Affiliation(s)
- Zhi-Hao You
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
| | - Ying-Han Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China
| | - Yu Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266003 , China
| | - Yan-Kai Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266003 , China
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23
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Meazza M, Kamlar M, Jašíková L, Formánek B, Mazzanti A, Roithová J, Veselý J, Rios R. Synergistic formal ring contraction for the enantioselective synthesis of spiropyrazolones. Chem Sci 2018; 9:6368-6373. [PMID: 30310564 PMCID: PMC6115638 DOI: 10.1039/c8sc00913a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 06/28/2018] [Indexed: 01/10/2023] Open
Abstract
We report the first ring contraction/formal [6 + 2] cycloaddition using synergistic Pd(0)/secondary amine catalysis, obtaining [5,5]-spiropyrazolone derivatives in excellent yields and stereoselectivities. We detected the key palladium activated intermediate in its protonated form by mass spectrometry and characterized its structure by infrared spectroscopy and DFT calculations, allowing us to propose a conceivable mechanistic pathway for this reaction.
The rapid generation of molecular complexity from simple reactants is a key challenge in organic synthesis. Spiro compounds, underrepresented 3D motifs in chemical libraries, represent a challenge due to the creation of spiro quaternary carbon and the need to control the 3D shape in one step. Herein, we report the first ring contraction/formal [6 + 2] cycloaddition using synergistic Pd(0)/secondary amine catalysis, obtaining [5,5]-spiropyrazolone derivatives in excellent yields and stereoselectivities. We demonstrate that this reaction has a broad scope of early and late stage derivatization that will benefit the creation of highly valuable chemical libraries using spiropyrazolone motifs. We detected the key palladium activated intermediate in its protonated form by mass spectrometry and characterized its structure by infrared spectroscopy and DFT calculations, allowing us to propose a conceivable mechanistic pathway for this reaction.
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Affiliation(s)
- Marta Meazza
- Faculty of Natural & Environmental Sciences , University of Southampton , Highfield Campus , Southampton , SO17 1BJ , UK .
| | - Martin Kamlar
- Department of Organic Chemistry , Faculty of Science , Charles University , Hlavova 2030/8 , 128 43 , Prague 2 , Czech Republic
| | - Lucie Jašíková
- Department of Organic Chemistry , Faculty of Science , Charles University , Hlavova 2030/8 , 128 43 , Prague 2 , Czech Republic
| | - Bedřich Formánek
- Department of Organic Chemistry , Faculty of Science , Charles University , Hlavova 2030/8 , 128 43 , Prague 2 , Czech Republic
| | - Andrea Mazzanti
- Department of Industrial Chemistry "Toso Montanari" , School of Science , University of Bologna , Viale Risorgimento 4 , 40136 , Bologna , Italy
| | - Jana Roithová
- Department of Organic Chemistry , Faculty of Science , Charles University , Hlavova 2030/8 , 128 43 , Prague 2 , Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry , Faculty of Science , Charles University , Hlavova 2030/8 , 128 43 , Prague 2 , Czech Republic
| | - Ramon Rios
- Faculty of Natural & Environmental Sciences , University of Southampton , Highfield Campus , Southampton , SO17 1BJ , UK .
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24
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Lin TY, Wu HH, Feng JJ, Zhang J. Chirality Transfer in Rhodium(I)-Catalyzed [3 + 2]-Cycloaddition of Vinyl Aziridines and Oxime Ethers: Atom-Economical Synthesis of Chiral Imidazolidines. Org Lett 2018; 20:3587-3590. [DOI: 10.1021/acs.orglett.8b01378] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tao-Yan Lin
- 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
| | - Hai-Hong 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
| | - Jian-Jun Feng
- 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
- 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
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25
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Cayuelas A, Larrañaga O, Selva V, Nájera C, Akiyama T, Sansano JM, de Cózar A, Miranda JI, Cossío FP. Cooperative Catalysis with Coupled Chiral Induction in 1,3-Dipolar Cycloadditions of Azomethine Ylides. Chemistry 2018; 24:8092-8097. [DOI: 10.1002/chem.201801433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Alberto Cayuelas
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Olatz Larrañaga
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
| | - Verónica Selva
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Carmen Nájera
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science; Gakushuin University; 1-5-1 Mejiro Toshima-ku Tokyo, 171-8588 Japan
| | - José M. Sansano
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Abel de Cózar
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science; 48011 Bilbao Spain
| | | | - Fernando P. Cossío
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
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26
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Xu MM, Wang HQ, Mao YJ, Mei GJ, Wang SL, Shi F. Cooperative Catalysis-Enabled Asymmetric α-Arylation of Aldehydes Using 2-Indolylmethanols as Arylation Reagents. J Org Chem 2018; 83:5027-5034. [DOI: 10.1021/acs.joc.8b00228] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Meng-Meng Xu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Hai-Qing Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yu-Jia Mao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Guang-Jian Mei
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shu-Liang Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
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27
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Suo JJ, Liu W, Du J, Ding CH, Hou XL. Diastereo- and Enantioselective Palladium-Catalyzed Dearomative [3+2] Cycloaddition of 3-Nitroindoles. Chem Asian J 2018; 13:959-963. [DOI: 10.1002/asia.201800133] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Jia-Jia Suo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- University of Chinese Academy of Sciences; Beijing China
| | - Wei Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Juan Du
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- University of Chinese Academy of Sciences; Beijing China
| | - Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences.; China
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28
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Zhang JQ, Tong F, Sun BB, Fan WT, Chen JB, Hu D, Wang XW. Pd-Catalyzed Asymmetric Dearomative Cycloaddition for Construction of Optically Active Pyrroloindoline and Cyclopentaindoline Derivatives: Access to 3a-Aminopyrroloindolines. J Org Chem 2018; 83:2882-2891. [DOI: 10.1021/acs.joc.8b00046] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jun-Qi Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Feifei Tong
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Bing-Bing Sun
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wei-Tai Fan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jun-Bo Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Dandan Hu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xing-Wang Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
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29
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Meazza M, Polo V, Merino P, Rios R. Synergistic catalysis: enantioselective cyclopropanation of alkylidene benzoxazoles by Pd(ii) and secondary amine catalysis. Scope, limitations and mechanistic insight. Org Chem Front 2018. [DOI: 10.1039/c7qo00858a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective synergistic cascade cyclopropanation/NHC catalyzed ring opening has been reported. DFT calculations have been performed to confirm the mechanism.
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Affiliation(s)
- Marta Meazza
- School of Chemistry
- University of Southampton
- Southampton
- UK
| | - Victor Polo
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Campus San Francisco
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Campus San Francisco
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Ramon Rios
- School of Chemistry
- University of Southampton
- Southampton
- UK
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30
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31
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Zhu CZ, Feng JJ, Zhang J. Divergent synthesis of functionalized pyrrolidines and γ-amino ketones via rhodium-catalyzed switchable reactions of vinyl aziridines and silyl enol ethers. Chem Commun (Camb) 2018; 54:2401-2404. [DOI: 10.1039/c8cc00279g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Rhodium-catalyzed enantiospecific intermolecular [3+2] cycloadditions and ring-opening reactions of vinylaziridines with silyl enol ethers have been developed to synthesize functionalized pyrrolidines and γ-amino ketones, respectively.
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Affiliation(s)
- Chao-Ze Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jian-Jun Feng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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32
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Liu XL, Zhang XL, Xia AB, Guo YJ, Meng CH, Xu DQ. Tryptophan/copper-catalyzed aromatization reaction of chiral cyclohexanones to phenols. Org Biomol Chem 2017; 15:5126-5130. [PMID: 28594034 DOI: 10.1039/c7ob01114h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
By merging organocatalysis with copper catalysis, a highly efficient stereospecific approach for the synthesis of chiral phenols from cyclohexanones has been developed for the first time. The aromatization reaction proceeds through the in situ formation of enone intermediates and further subsequent bromination/dehydrobromination reactions. And a series of functionalized phenol derivatives are obtained in good yields (up to 89%) and good to excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Xue-Li Liu
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China.
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33
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Liao Y, Zhou B, Xia Y, Liu X, Lin L, Feng X. Asymmetric [3 + 2] Cycloaddition of 2,2′-Diester Aziridines To Synthesize Pyrrolidine Derivatives. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00787] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yuting Liao
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Baixin Zhou
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yong Xia
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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34
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Quintard A, Rodriguez J. Organocatalytic Activation of Diethyl Glutaconate for the Diastereo- and Enantioselective Assembly of NH-Free 2,3,4-Trisubstituted Pyrrolidines. Org Lett 2017; 19:722-725. [DOI: 10.1021/acs.orglett.7b00014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrien Quintard
- Aix-Marseille Univ, CNRS,
Centrale Marseille, iSm2, Marseille, France
| | - Jean Rodriguez
- Aix-Marseille Univ, CNRS,
Centrale Marseille, iSm2, Marseille, France
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