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Zhao W, Wang W, Zhou H, Liu Q, Ma Z, Huang H, Chang M. An Asymmetric Hydrogenation/N-Alkylation Sequence for a Step-Economical Route to Indolizidines and Quinolizidines. Angew Chem Int Ed Engl 2023; 62:e202308836. [PMID: 37643998 DOI: 10.1002/anie.202308836] [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: 06/23/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 08/31/2023]
Abstract
The direct catalytic asymmetric hydrogenation of pyridines for the synthesis of piperidines remains a challenge. Herein, we report a one-pot asymmetric hydrogenation of pyridines with subsequent N-alkylation using a traceless Brønsted acid activation strategy. Catalyzed by an iridium-BINAP complex, the substrates undergo ketone reduction, cyclization and pyridine hydrogenation in sequence to form indolizidines and quinolizidines. The absolute configuration of the stereocenter of the alcohol is retained and influences the formation of the second stereocenter. Experimental and theoretical mechanistic studies reveal that the chloride anion and certain noncovalent interactions govern the stereoselectivity of the cascade reaction throughout the catalytic process.
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Affiliation(s)
- Wei Zhao
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Wenji Wang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Huan Zhou
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Qishan Liu
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Zhiqing Ma
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Haizhou Huang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Mingxin Chang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
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2
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Wang Q, Li S, Yang G, Zou X, Yin X, Feng J, Chen H, Yang C, Zhang L, Lu C, Yue G. DABCO-Catalyzed Mono-/Diallylation of N-Unsubstituted Isatin N,N′-Cyclic Azomethine Imine 1,3-Dipoles with Morita-Baylis-Hillman Carbonates. Molecules 2023; 28:molecules28073002. [PMID: 37049765 PMCID: PMC10095907 DOI: 10.3390/molecules28073002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023] Open
Abstract
Allylation of N-unsubstituted isatin N,N′-cyclic azomethine imines with Morita-Baylis-Hillman carbonates in the presence of 1–10 mol% DABCO in DCM at room temperature, rapidly gave N-allylated and N, β-diallylated isatin N,N′-cyclic azomethine imine 1,3-dipoles in moderate to high yields. The reaction features mild reaction conditions, easily practical operation, and short reaction times in most cases. Furthermore, the alkylated products were transformed into novel bicyclic spiropyrrolidine oxoindole derivatives through the [3+2] or [3+3]-cycloaddition with maleimides or Knoevenagel adducts.
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3
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K 2CO 3-Promoted Formal [3+3]-Cycloaddition of N-Unsubstituted Isatin N, N'-Cyclic Azomethine Imine 1,3-Dipoles with Knoevenagel Adducts. Molecules 2023; 28:molecules28031034. [PMID: 36770700 PMCID: PMC9921867 DOI: 10.3390/molecules28031034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The synthesis of dicyclic spiropyridazine oxoindole derivatives by using [3+3]-cycloaddition of N-unsubstituted isatin N,N'-cyclic azomethine imine 1,3-dipoles was reported. The products bearing two consecutive stereocenters, including spiroquaternary stereocenters in one ring structure, can be effectively obtained in moderate to excellent yields (20-93%) and low to moderate diastereoselectivities (1:9-10:1 dr). The synthesized compounds (>35 examples) were characterized by single-crystal XRD, FTIR, NMR, and mass spectral analysis.
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4
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Development of catalyst-free approach to synthesize novel spiro[indoline-3,1′-pyrazolo[1,2-a]pyrazoles] via 1,3-dipolar cycloaddition. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134170] [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]
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Borah B, Raju Chowhan L. Recent updates on the stereoselective synthesis of structurally functionalized spiro-oxindoles mediated by isatin N, N´‑cyclic azomethine imine 1, 3-dipoles. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Osipov DV, Korzhenko KS, Rashchepkina DA, Artemenko AA, Demidov OP, Shiryaev VA, Osyanin VA. Catalyst-free formal [3 + 2] cycloaddition of stabilized N, N-cyclic azomethine imines to 3-nitrobenzofurans and 3-nitro-4 H-chromenes: access to heteroannulated pyrazolo[1,2- a]pyrazoles. Org Biomol Chem 2021; 19:10156-10168. [PMID: 34778893 DOI: 10.1039/d1ob01377g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We have studied the [3 + 2]-cycloaddition of various N,N-cyclic azomethine imines to 3-nitrobenzofurans. This process is a rare example of their dearomatization. We have also extended this process to the related 3-nitro-4H-chromenes as dipolarophiles. Both reactions provide access to benzofuro- and chromeno-condensed pyrazolo[1,2-a]pyrazoles with 100% atom economy in a diastereoselective manner under mild eco-friendly conditions. Finally, on the basis of DFT calculations, the mechanistic insights into the mentioned [3 + 2]-cycloadditions and explanations of the experimentally determined limitations of the method are given. Hirshfeld atomic charge values of push-pull heterocycles were suggested as a criterion for a priori assessment of the possibility of their dipolar cycloaddition with N,N-cyclic azomethine imines.
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Affiliation(s)
- Dmitry V Osipov
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
| | - Kirill S Korzhenko
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
| | - Daria A Rashchepkina
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
| | - Alina A Artemenko
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
| | - Oleg P Demidov
- Department of Chemistry, North Caucasus Federal University, 1 Pushkin St., Stavropol 355009, Russia
| | - Vadim A Shiryaev
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
| | - Vitaly A Osyanin
- Department of Organic Chemistry, Chemical Technological Faculty, Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia.
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Yue G, Jiang D, Dou Z, Li S, Feng J, Zhang L, Chen H, Yang C, Yin Z, Song X, Liang X, Wang X, Lu C. Rapid umpolung Michael addition of isatin N, N′-cyclic azomethine imine 1,3-dipoles with chalcones. NEW J CHEM 2021. [DOI: 10.1039/d1nj00960e] [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
3,3-Disubstituted oxindoles were prepared rapidly in moderate to excellent yields with promising dr values by the t-BuONa-promoted Michael addition.
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Deepthi A, Thomas NV, Sruthi SL. An overview of the reactions involving azomethine imines over half a decade. NEW J CHEM 2021. [DOI: 10.1039/d1nj01090e] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Azomethine imines constitute a versatile class of 1,3-dipoles which was used extensively for biologically relevant N-heterocycle synthesis – a five-year recap.
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Affiliation(s)
- Ani Deepthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - Noble V. Thomas
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - S. L. Sruthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
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Kartikey KDD, Reddy MS, Chowhan LR. Isatin N,N′-cyclic azomethine imine 1, 3-dipole mediated regio and diastereoselective synthesis of isoxazole-containing spirooxindoles by an abnormal [3 + 2] cycloaddition. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152664] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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10
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Fang QY, Jin HS, Wang RB, Zhao LM. A Role for Isatin Azomethine Imines as a Dipolarophile in Cycloaddition Reactions. Org Lett 2020; 22:7358-7362. [PMID: 32875804 DOI: 10.1021/acs.orglett.0c02705] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unusual [2 + 3] cycloaddition of isatin azomethine imines (AIs) and in situ generated azaoxyallyl cations has been developed. It is the first example where AIs serve as the [C,O] 2-atom synthon in organic synthesis. This work not only reveals a new role of isatin AIs in cycloaddition reaction but also provides an efficient access to unprecedented spiroheterocycle compounds.
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Affiliation(s)
- Qing-Yun Fang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Ru-Bing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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Syntheses of 3,3-Disubstituted Dihydrobenzofurans, Indolines, Indolinones and Isochromanes by Palladium-Catalyzed Tandem Reaction Using Pd(PPh3)2Cl2/(±)-BINAP as a Catalytic System. Catalysts 2020. [DOI: 10.3390/catal10091084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A general procedure for the tandem arylation reaction of arylbromide with heteroaryl compounds was developed by using Pd(PPh3)2Cl2/(±)-BINAP (1,1′-Binaphthalene-2,2′-diylbis (diphenylphosphane)) as catalytic system. Both sulphur- and oxygen-containing heterocycles were also employed as an efficient reagent for arylation, which gave moderate to excellent yields with moderate to good regioselectivities (5:1 to > 20:1 ir (isomer ratio)). Except for dihydrobenzofurans, indolines and indolinones, this type of tandem reaction was also expanded to synthesize isochromanes. The synthesized new compounds were well characterized through different spectroscopic techniques, such as 1H and 13C NMR (nuclear magnetic resonance), and mass spectral analysis.
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