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Melder JJ, Heldner ML, Kugler R, Ziegenhagen LA, Rominger F, Rudolph M, Hashmi ASK. Easy Access to Functionalized Indolines and Tetrahydroquinolines via a Photochemical Cascade Cyclization Reaction. J Am Chem Soc 2024; 146:14521-14527. [PMID: 38743878 DOI: 10.1021/jacs.4c00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Herein, the development of a light-mediated synthesis of functionalized indolines and tetrahydroquinolines is reported. These structural motifs are considered as highly valuable targets, attributed to their widespread occurrence in pharmaceuticals and natural products. The gold-mediated approach offers a direct route to functionalized indolines in yields of up to 81% under mild photochemical conditions. Thereby, easily accessible Boc-protected N-aryl-allylamine and homoallylamine derivatives were reacted with sp3-hybridized haloalkanes in an intermolecular cascade cyclization reaction. A broad scope of substrates, including a variety of different substituents on the aromatic backbone as well as various haloalkanes, could be utilized. Indoline derivatives, which are functionalized in position 2, are also accessible by applying ortho-allylic anilines. Moreover, the synthetic appeal was demonstrated for a total synthesis of the anti-inflammatory agent AN669 in three reaction steps in an overall yield of 64%.
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Affiliation(s)
- Julian J Melder
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Maxi L Heldner
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Robin Kugler
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Levi A Ziegenhagen
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Bieszczad B, Chen X, Zard SZ. An Ionic-Radical Approach to Vicinally Functionalized Cyclopentanones and Cyclohexanones. Org Lett 2022; 24:9370-9374. [PMID: 36534058 DOI: 10.1021/acs.orglett.2c03671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A versatile strategy to access vicinally functionalized cyclopentanones and cyclohexanones is described. It takes advantage of new reagents, α-xanthyl enones, which can be prepared from the reaction of xanthate salts with the corresponding epoxyketones under mild conditions. β-Functionalization of these compounds can be performed by conjugate additions without affecting the xanthate moiety. This significantly expands the pool of xanthate substrates, allowing the synthesis of open chain and fused bicyclic building blocks useful in the synthesis of natural products.
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Affiliation(s)
- Bartosz Bieszczad
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, Palaiseau Cedex 91128 Cedex, France
| | - Xuan Chen
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, Palaiseau Cedex 91128 Cedex, France
| | - Samir Z Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, Palaiseau Cedex 91128 Cedex, France
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3
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Zard SZ. The Xanthate Route to Indolines, Indoles, and their Aza Congeners. Chemistry 2020; 26:12689-12705. [DOI: 10.1002/chem.202001341] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/17/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Samir Z. Zard
- Laboratoire de Synthèse Organique, UMR 7652 Ecole Polytechnique 91128 Palaiseau France
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Wang SY, Shi XC, Laborda P. Indole-based melatonin analogues: Synthetic approaches and biological activity. Eur J Med Chem 2020; 185:111847. [DOI: 10.1016/j.ejmech.2019.111847] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/01/2019] [Accepted: 11/01/2019] [Indexed: 12/11/2022]
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Deerberg J, Prasad SJ, Sfouggatakis C, Eastgate MD, Fan Y, Chidambaram R, Sharma P, Li L, Schild R, Müslehiddinoğlu J, Chung HJ, Leung S, Rosso V. Stereoselective Bulk Synthesis of CCR2 Antagonist BMS-741672: Assembly of an All-cis (S,R,R)-1,2,4-Triaminocyclohexane (TACH) Core via Sequential Heterogeneous Asymmetric Hydrogenations. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00282] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Joerg Deerberg
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Siva J. Prasad
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Chris Sfouggatakis
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Martin D. Eastgate
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Yu Fan
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Ramakrishnan Chidambaram
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Praveen Sharma
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Li Li
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Richard Schild
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Jale Müslehiddinoğlu
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Hyei-Jha Chung
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Simon Leung
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Victor Rosso
- Chemical and Synthetic
Development, Bristol-Myers
Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08901, United States
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Pan C, Chen R, Shao W, Yu JT. Metal-free radical addition/cyclization of alkynoates with xanthates towards 3-(β-carbonyl)coumarins. Org Biomol Chem 2016; 14:9033-9. [DOI: 10.1039/c6ob01732k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dilauroyl peroxide-promoted radical carboannulation of alkynoates with xanthates was developed, affording 4-aryl-3-(β-carbonyl) coumarins in moderate to good yields.
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Affiliation(s)
- Changduo Pan
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
- School of Petrochemical Engineering
| | - Rongzhen Chen
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
- School of Petrochemical Engineering
| | - Weile Shao
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
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Wang S, Huang X, Li B, Ge Z, Wang X, Li R. A metal-free synthesis of oxindoles by a radical addition-cyclization onto N-arylacrylamides with xanthates. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Charrier N, Liu Z, Zard SZ. Desulfonylative Radical Ring Closure onto Aromatics. A Modular Route to Benzazepin-2-ones and 5-Arylpiperidin-2-ones. Org Lett 2012; 14:2018-21. [DOI: 10.1021/ol3005276] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas Charrier
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Zhibo Liu
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
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Modglin JD, Dunham JC, Gibson CW, Lin CY, Coote ML, Poole JS. Computational Study of the Chemistry of 3-Phenylpropyl Radicals. J Phys Chem A 2011; 115:2431-41. [DOI: 10.1021/jp112257u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- James D. Modglin
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Jason C. Dunham
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Chad W. Gibson
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Ching Yeh Lin
- ARC Centre for Excellence for Free Radical Chemistry and Biotechnology, Research School of Chemistry, Australian National University, Canberra ACT 0200, Australia
| | - Michelle L Coote
- ARC Centre for Excellence for Free Radical Chemistry and Biotechnology, Research School of Chemistry, Australian National University, Canberra ACT 0200, Australia
| | - James S. Poole
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
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El Kaïm L, Grimaud L, Miranda LD, Vieu E, Cano-Herrera MA, Perez-Labrada K. New xanthate-based radical cyclization onto alkynes. Chem Commun (Camb) 2010; 46:2489-91. [DOI: 10.1039/b924207d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Affiliation(s)
- Béatrice Quiclet-Sire
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652 Ecole Polytechnique, 91128 Palaiseau Cedex, France
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13
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Bellezza F, Cipiciani A, Ruzziconi R, Spizzichino S. Nucleus- and side-chain fluorinated 3-substituted indoles by a suitable combination of organometallic and radical chemistry. J Fluor Chem 2008. [DOI: 10.1016/j.jfluchem.2007.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Majumdar KC, Basu PK, Chattopadhyay SK. Formation of five- and six-membered heterocyclic rings under radical cyclisation conditions. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.09.049] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Quiclet-Sire B, Zard SZ. Powerful CarbonCarbon Bond Forming Reactions Based on a Novel Radical Exchange Process. Chemistry 2006; 12:6002-16. [PMID: 16791885 DOI: 10.1002/chem.200600510] [Citation(s) in RCA: 180] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Xanthates and related derivatives have proved to be extremely useful for both inter- and intramolecular radical additions. The broad applicability of the intermolecular addition to un-activated olefins opens tremendous opportunities for synthesis, since various functional groups can be brought together under mild conditions and complex structures can be rapidly assembled. The presence of the xanthate in the product is also a powerful asset for further modifications, by both radical and non-radical pathways. Of special importance is the access to highly substituted aromatic and heteroaromatic derivatives and the synthesis of block polymers through a controlled radical polymerisation mediated by various thiocarbonylthio group containing agents (RAFT and MADIX processes).
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Affiliation(s)
- Béatrice Quiclet-Sire
- Laboratoire de Synthèse Organique associé au CNRS (UMR 7652), Département de Chimie, Ecole Polytechnique, 91128 Palaiseau, France
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Panchaud P, Ollivier C, Renaud P, Zigmantas S. Radical carboazidation: expedient assembly of the core structure of various alkaloid families. J Org Chem 2004; 69:2755-9. [PMID: 15074924 DOI: 10.1021/jo035843y] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A procedure for one-pot intermolecular radical addition of 2-iodoesters to terminal alkenes followed by azidation of the radical adduct has been developed. This sequential reaction represents an alkene carboazidation process. Its efficacy is demonstrated by the two-step preparation of various lactams such as pyrrolidinones, pyrrolizidinones, and indolizidinones. An easy access to spirolactams bearing an amino-substituted quaternary carbon center is also described. These compounds are important building blocks for the synthesis of numerous alkaloids such as, for instance, FR901483.
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Affiliation(s)
- Philippe Panchaud
- University of Berne, Department of Chemistry and Biochemistry, CH-3012 Berne, Switzerland
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Thomson DW, Commeureuc AGJ, Berlin S, Murphy JA. Efficient Route to the Pineal Hormone Melatonin by Radical-Based Indole Synthesis. SYNTHETIC COMMUN 2003. [DOI: 10.1081/scc-120024751] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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