1
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Yang KC, Zheng SL, Wen Z, Zhang YS, Ni HL, Chen L. Dehydrative alkynylation of 3-hydroxyisoindolinones with terminal alkynes for the synthesis of 3-alkynylated 3,3-disubstituted isoindolinones. Org Biomol Chem 2024; 22:3453-3458. [PMID: 38596838 DOI: 10.1039/d4ob00190g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
A brand-new procedure for the synthesis of 3-alkynylated 3,3-disubstituted isoindolinones has been disclosed via a HOTf or Fe(OTf)3-catalyzed dehydrative alkynylation of 3-hydroxyisoindolinones with terminal alkynes. Aryl, alkenyl and alkyl terminal alkynes are suitable to couple with a broad range of 3-hydroxyisoindolinones to afford the desired products in moderate to good yields. This protocol features the use of an inexpensive catalyst, mild reaction conditions, broad substrate scope and easy elaboration of the products.
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Affiliation(s)
- Kai-Cheng Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
| | - Shi-Lu Zheng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
| | - Zhong Wen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
| | - Yu-Shan Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
| | - Hai-Liang Ni
- College of Chemistry and Materials Science, Sichuan Normal University, 5 Jing An Road, Chengdu 610066, P. R. China
| | - Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
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2
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Svestka D, Bobal P, Waser M, Otevrel J. Asymmetric Organocatalyzed Transfer Hydroxymethylation of Isoindolinones Using Formaldehyde Surrogates. Org Lett 2024; 26:2505-2510. [PMID: 38502794 PMCID: PMC10985653 DOI: 10.1021/acs.orglett.4c00818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
The piperidine-based Takemoto catalyst has been successfully employed in a novel asymmetric transfer hydroxymethylation of activated isoindolinones, allowing us to prepare the enantioenriched hydroxymethylated adducts in good to excellent yields (48-96%) and enantiopurities (81:19-97:3 e.r.). To increase the reaction rate without compromising the selectivity, carefully optimized formaldehyde surrogates were employed, providing a convenient source of anhydrous formaldehyde with a base-triggered release. The substrate scope, including 34 entries, showed the considerable generality of the asymmetric transformation, and most entries exhibited complete conversions in 24-48 h. A scale-up experiment and multiple enantioselective downstream transformations were also carried out, suggesting the prospective synthetic utility of the products.
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Affiliation(s)
- David Svestka
- Department
of Chemical Drugs, Faculty of Pharmacy, Masaryk University, Palackeho 1, 612 00 Brno, Czechia
| | - Pavel Bobal
- Department
of Chemical Drugs, Faculty of Pharmacy, Masaryk University, Palackeho 1, 612 00 Brno, Czechia
| | - Mario Waser
- Institute
of Organic Chemistry, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Jan Otevrel
- Department
of Chemical Drugs, Faculty of Pharmacy, Masaryk University, Palackeho 1, 612 00 Brno, Czechia
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3
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Wang L, Wang Y, Wu S, Yan CG, Zhang C, Zhang J, Han Y. Enantioselective Synthesis of Isoindolinone by Palladium-Catalyzed Aminoalkynylation of O-Phenyl Hydroxamic Ethers with Alkynes. J Am Chem Soc 2024; 146:4320-4326. [PMID: 38335536 DOI: 10.1021/jacs.3c12996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
A highly efficient palladium-catalyzed asymmetric tandem aza-Heck/Sonogashira coupling reaction of O-phenyl hydroxamic ethers with terminal alkynes is described. This protocol enables versatile access to challenging chiral isoindolinone derivatives bearing a quaternary stereogenic center. The palladium-catalyzed aminoalkynylation reaction shows broad functional group tolerance and allows the straightforward preparation of isoindolinones with high efficiency and excellent enantioselectivity under mild conditions. DFT calculations were performed to disclose the reaction mechanism and the origins of the enantioselectivity.
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Affiliation(s)
- Lei Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yinqiang Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Shuaijie Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chaoshen Zhang
- Department of Chemistry. The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| | - Junliang Zhang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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4
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Zhu Z, Wu Q, Song X, Ni Q. Thermodynamic Controlled Regioselective C1-Functionalization of Indolizines with 3-Hydroxyisoindolinones via Brønsted Acid Catalyzed aza-Friedel-Crafts Reaction. J Org Chem 2024; 89:2794-2799. [PMID: 38294192 DOI: 10.1021/acs.joc.3c02522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
A Brønsted acid catalyzed aza-Friedel-Crafts reaction of indolizines with 3-hydroxyisoindolinones has been established, which constructs isoindolinone derivatives bearing a tetrasubstituted stereocenter in good to high yields and enantioselectivities. Notably, this strategy provides a new access to C1-functionalization of indolizines with excellent regioselectivities. Moreover, this intriguing C1-regioselective transformation was induced under thermodynamic control.
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Affiliation(s)
- Zhiming Zhu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Qianling Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
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5
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Liu H, Chai YX, Yang JJ, Miao D, Wang MY, Jiang T, Sun YY, Lu X, Sun Q, Li JH, Zhu YP. Palladium/Norbornene Cooperative Catalysis Bifunctionalization: Acylation/Cyanation of Aryl Iodides by Cleaving C-CN Bond of Aryl Acyl Nitrile. Org Lett 2024. [PMID: 38194611 DOI: 10.1021/acs.orglett.3c03838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
A palladium/norbornene catalyzed two-component coupling process involving acylation/cyanation of aryl iodides is reported. In this work, aryl acyl nitrile compounds are cleverly selected to provide both nitrile and acyl sources by palladium-catalyzed cleavage of the C-CN bond as both an electrophilic reagent and a termination reagent. This is the first example of C-CN bond cleavage bifunctionalization of aryl iodides. After a series of important NBE derivatives are screened, the products resulting from the bifunctionalization of aryl iodides are smoothly obtained. This strategy has a wide range of substrates and good functional group compatibility. Moreover, this synthetic protocol demonstrated a good application for the synthesis of diverse O,N,C-substituted isoindolinones.
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Affiliation(s)
- Hang Liu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Yi-Xin Chai
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Jun-Jie Yang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Dan Miao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Meng-Yao Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Ting Jiang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Yuan-Yuan Sun
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surface & Fujian Provincial Key Laboratory for Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yan-Ping Zhu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
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6
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Zhong J, Pan R, Lin X. Enantioselective synthesis of α-tetrasubstituted (1-indolizinyl) (diaryl)-methanamines via chiral phosphoric acid catalysis. RSC Adv 2024; 14:1106-1113. [PMID: 38174273 PMCID: PMC10759308 DOI: 10.1039/d3ra07636a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
An enantioselective Friedel-Crafts reaction of cyclic α-diaryl N-acyl imines with indolizines catalyzed by a chiral spirocyclic phosphoric acid has been developed. The asymmetric transformation proceeds smoothly to afford α-tetrasubstituted (1-indolizinyl) (diaryl)methanamines in good yields with up to 98% ee under mild conditions.
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Affiliation(s)
- Jialing Zhong
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Rihuang Pan
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
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7
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Tang WX, Chen KQ, Sun DQ, Chen XY. Photoinduced halogen-bonding enabled synthesis of oxindoles and isoindolinones from aryl iodides. Org Biomol Chem 2023; 21:715-718. [PMID: 36412116 DOI: 10.1039/d2ob01818g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report the use of halogen bonding (XB) for the generation of aryl radicals from aryl halides under blue light irradiation and applied it in radical generation/1,5-hydrogen-atom transfer/radical cyclization cascade reactions for the synthesis of oxindoles and isoindolinones. On the basis of experimental studies, we propose that DBU can serve as a suitable XB acceptor with aryl halides for the formation of a photoactive electron donor and acceptor complex.
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Affiliation(s)
- Wen-Xin Tang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Kun-Quan Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
| | - De-Qun Sun
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Xiang-Yu Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China. .,Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou, Shandong Province 256606, P. R. China
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8
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Khajuria C, Sadhu MM, Unhale RA, Singh VK. Chiral phosphoric acid-catalyzed reaction between C-alkynyl imine precursor and thiol: Access to highly enantioenriched alkynyl isoindolinones with N,S-ketal framework. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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9
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Bhosale VA, Císařová I, Kamlar M, Veselý J. Catalytic asymmetric addition to cyclic N-acyl-iminium: access to sulfone-bearing contiguous quaternary stereocenters. Chem Commun (Camb) 2022; 58:9942-9945. [PMID: 35983733 DOI: 10.1039/d2cc02667h] [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
Herein, we report the first chiral phosphoric acid (CPA)-catalyzed asymmetric addition of α-fluoro(phenylsulfonyl)methane (FSM) derivatives to in situ generated cyclic N-acyliminium. This process enables metal-free expeditious access to sulfone and fluorine incorporating contiguous all substituted quaternary stereocenters ingrained in biorelevant isoindolinones in excellent stereoselectivities (up to 99% ee and up to 50 : 1 dr).
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Affiliation(s)
- Viraj A Bhosale
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Martin Kamlar
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
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10
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Kumar R, Jain VK, Jain N. Photoredox Hydroxy-arylation of the Terminal Double Bond of N-Substituted 3-Methyleneisoindolin-1-ones in Visible Light. J Org Chem 2022; 87:11939-11946. [PMID: 36041118 DOI: 10.1021/acs.joc.2c00607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mild and efficient ruthenium-catalyzed hydroxy-arylation of the terminal double bond of N-substituted 3-methyleneisoindolin-1-ones is described. The reaction takes place with aryl diazonium salt as the arylating reagent and water as the hydroxyl source in visible light at ambient temperature. The strategy entails vicinal difunctionalization of alkene and enables construction of 3-benzyl-3-hydroxyisoindolin-1-one heterocyclic scaffolds in moderate to good yields. C-C and C-O bonds are formed in one pot without any external additive and oxidant through an in situ generation of a carbocation intermediate in green light.
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Affiliation(s)
- Rohit Kumar
- Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India
| | - Vipin Kumar Jain
- Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India
| | - Nidhi Jain
- Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India
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11
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Zhong J, Pan R, Lin X. Enantioselective synthesis of α-tetrasubstituted (3-indolizinyl) (diaryl)methanamines via chiral phosphoric acid catalysis. RSC Adv 2022; 12:20499-20506. [PMID: 35919132 PMCID: PMC9284663 DOI: 10.1039/d2ra03750e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/11/2022] [Indexed: 11/21/2022] Open
Abstract
An enantioselective Friedel-Crafts reaction of cyclic α-diaryl N-acyl imines with indolizines catalyzed by a chiral spirocyclic phosphoric acid has been developed. The asymmetric transformation proceeds smoothly to afford α-tetrasubstituted (3-indolizinyl) (diaryl)methanamines in good yields with up to 98% ee under mild conditions.
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Affiliation(s)
- Jialing Zhong
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Rihuang Pan
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
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12
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Copper Catalyzed Oxidative Cascade Double Cyclization of 2‐Iodobenzamide Derivatives and Propargyl dicarbonyl Compounds for Accessing 3‐Hydroxy‐3‐furylisoindolinone derivatives. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200235] [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]
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13
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Wang T, Huang B, Wang YQ. Enantioselective Synthesis of Spiro Chroman‐Isoindolinones via Formal (4+2) Cycloaddition of In Situ‐Generated ortho‐Quinone Methides with 3‐Methylene Isoindolinones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200350] [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]
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14
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Zheng SL, Wen Z, Yang KC, Zeng Y, Chen L, Deng JF. Copper(II)-catalyzed direct dehydrative alkynylation of 2 H-chromene hemiketals with terminal alkynes to 2,2-disubstituted 2-alkynylated 2 H-chromenes. Org Biomol Chem 2022; 20:3785-3789. [PMID: 35438703 DOI: 10.1039/d2ob00481j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first copper-catalyzed direct dehydrative alkynylation of 2H-chromene hemiketals with terminal alkynes has been uncovered. The use of cheap and readily available CuCl2 as the catalyst allowed the preparation of various 2,2-disubstituted 2-alkynylated 2H-chromenes in moderate to good yields, which compensates for the limitation of the current methods only suited for the synthesis of 2-monosubsituted 2-alkynylated 2H-chromenes.
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Affiliation(s)
- Shi-Lu Zheng
- College of Food and Biological Engineering, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.,Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China.
| | - Zhong Wen
- Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China. .,Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China
| | - Kai-Cheng Yang
- Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China. .,Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China
| | - Yao Zeng
- Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China. .,Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China
| | - Long Chen
- Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China. .,Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China
| | - Jun-Feng Deng
- Institute for Advanced Study, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China. .,Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, P. R. China
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15
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Unhale RA, Sadhu MM, Singh VK. Chiral Brønsted Acid Catalyzed Enantioselective Synthesis of Spiro-Isoindolinone-Indolines via Formal [3 + 2] Cycloaddition. Org Lett 2022; 24:3319-3324. [PMID: 35507765 DOI: 10.1021/acs.orglett.2c00748] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel organocatalytic asymmetric formal [3 + 2] cycloaddition of 3-substituted 1H-indoles with in situ generated 3-hydroxy-isoindolinone-derived β,γ-alkynyl-α-ketimines has been developed. A variety of biologically relevant chiral spiro-isoindolinone-indolines were achieved with excellent yields (up to 99%) and enantioselectivity (up to 99% ee) under mild conditions. The gram-scale reaction of this methodology and several interesting transformations of the products have been demonstrated.
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Affiliation(s)
- Rajshekhar A Unhale
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Milon M Sadhu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India.,Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
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16
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Basson AJ, McLaughlin MG. Recent advancements in catalytic generation of N-Acyliminium ions and subsequent applications. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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17
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Yi ZJ, Sun JT, Yang TY, Yu XY, Han XL, Wei BG. Cu(OTf) 2-catalyzed C3 aza-Friedel-Crafts alkylation of indoles with N, O-acetals. Org Biomol Chem 2022; 20:2261-2270. [PMID: 35229848 DOI: 10.1039/d1ob02383g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An efficient approach to access functionalized indole derivatives has been developed through Cu(OTf)2-catalyzed C3 aza-Friedel-Crafts alkylation of substituted indoles 5a-5m, N-methyl-pyrrole with linear N,O-acetals 4a-4l. As a result, a series of C3 amide aza-alkylated indole derivatives 6a-6ag and 7 were synthesized in moderate to excellent yields.
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Affiliation(s)
- Zi-Juan Yi
- Key Laboratory of Theoretical Organic Chemistry Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China. .,Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Jian-Ting Sun
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Tian-Yu Yang
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Xian-Yong Yu
- Key Laboratory of Theoretical Organic Chemistry Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China.
| | - Xiao-Li Han
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China. .,Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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18
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Liu M, Li W, Huang M, Yan Y, Li M, Cao L, Zhang X. Enantioselective intramolecular Pictet–Spengler type annulation of indole-linked 3-methyleneisoindolin-1-ones. NEW J CHEM 2022. [DOI: 10.1039/d2nj00517d] [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
Asymmetric intramolecular Pictet–Spengler type annulation of indole-linked 3-methyleneisoindolin-1-ones provided isoindolinone fused tetrahydro β-carbolines with moderate to good enantioselectivities.
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Affiliation(s)
- Min Liu
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wenzhe Li
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Min Huang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yingkun Yan
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Min Li
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lianyi Cao
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaomei Zhang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Department of Chemistry, Xihua University, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
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Matišić M, Gredičak M. Enantioselective construction of a tetrasubstituted stereocenter in isoindolinones via an organocatalyzed reaction between ketones and 3-hydroxyisoindolinones. Chem Commun (Camb) 2021; 57:13546-13549. [PMID: 34842247 DOI: 10.1039/d1cc05761h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient enantioselective reaction between ketones and 3-hydroxyisoindolinones is described. In a reaction catalyzed by a chiral phosphoric acid, a broad range of ketones and in situ generated ketimines afforded isoindolinone derivatives comprising a tetrasubstituted stereocenter in high yields and enantioselectivities. The developed methodology is also suitable for the construction of compounds with vicinal stereogenic centers.
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Affiliation(s)
- Mateja Matišić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička c. 54, 10 000 Zagreb, Croatia.
| | - Matija Gredičak
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička c. 54, 10 000 Zagreb, Croatia.
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