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Merski I, Yin J, VanderLinden RT, Rainier JD. The Role of N-Substitution in Regio- and Stereoselective Vinylogous Imidonaphthoquinone (VINAquinone) [2 + 2] Photocycloadditions. Org Lett 2024; 26:4921-4925. [PMID: 38814707 DOI: 10.1021/acs.orglett.4c01418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Described in this manuscript are intramolecular [2 + 2] photocycloadditions of readily available vinylogous imidonaphthoquinones whose regio- and diastereoselectivity is dependent on the substitution on the vinylogous imide. When exposed to 419 nm light, 2° vinylogous imidonaphthoquinones give novel bridged tetracyclic aza-anthraquinones from a rare crossed [2 + 2] cycloaddition reaction. In contrast, exposure of the corresponding 3° substrates to white light leads to linear adducts. Also outlined here are auxiliary controlled diastereoselective reactions and cyclobutane fragmentations as a means of generating the spirofused γ-lactam moiety present in the ansalactam family of natural product.
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Affiliation(s)
- Ian Merski
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84108, United States
| | - Jinya Yin
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84108, United States
| | - Ryan T VanderLinden
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84108, United States
| | - Jon D Rainier
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84108, United States
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de Souza WC, Matsuo BT, Matos PM, Correia JTM, Santos MS, König B, Paixão MW. Photocatalyzed Intramolecular [2+2] Cycloaddition of N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides. Chemistry 2021; 27:3722-3728. [PMID: 32955792 DOI: 10.1002/chem.202003641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 02/05/2023]
Abstract
N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides are converted into natural product inspired scaffolds via iridium photocatalyzed intramolecular [2+2] photocycloaddition. The protocol has a broad substrate scope, whilst operating under mild reaction conditions. Tethering four components forming a trisubstituted cyclobutane core builds rapidly high molecular complexity. Our approach allows the design and synthesis of a variety of tetrahydrocyclobuta[c]quinolin-3(1H)-ones, in yields ranging between 20-99 %, and with excellent regio- and diastereoselectivity. Moreover, it was demonstrated that the intramolecular [2+2]-cycloaddition of 1,7-enynes-after fragmentation of the cyclobutane ring-leads to enyne-metathesis-like products.
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Affiliation(s)
- Wanderson C de Souza
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Bianca T Matsuo
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Priscilla M Matos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - José Tiago M Correia
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Marilia S Santos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil.,Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Marcio W Paixão
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
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Kaur N, Bhardwaj P, Devi M, Verma Y, Grewal P. Photochemical reactions in five and six-membered polyheterocycles synthesis. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1622732] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Meenu Devi
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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Blanco-Ania D, Aben RWM, van Berkom LWA, Scheeren HW, Rutjes FPJT. High-Pressure-Mediated Extension of the Privileged Steroid Scaffold. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301511] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Salim H, Piva O. A short access to highly strained spiranic compounds from ethyl 3-cyclobutylprop-2-enoate. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.02.172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Akritopoulou-Zanze I, Whitehead A, Waters JE, Henry RF, Djuric SW. Synthesis of novel and uniquely shaped 3-azabicyclo[4.2.0]octan-4-one derivatives by sequential Ugi/[2+2] ene-enone photocycloadditions. Org Lett 2007; 9:1299-302. [PMID: 17323962 DOI: 10.1021/ol070164l] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[structure: see text]. We report a new methodology for the construction of novel and uniquely shaped 3-azabicyclo[4.2.0]octan-4-one derivatives by combining the Ugi multicomponent reaction with [2+2] enone-olefin photochemical transformations. The overall sequence is capable of creating up to five stereocenters; however, in most cases, only two diastereomers are observed.
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Affiliation(s)
- Irini Akritopoulou-Zanze
- Scaffold Oriented Synthesis and Structural Chemistry, Abbott Laboratories, R4CP, AP10, Abbott Park, IL 60064-6099, USA.
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Asahara H, Mochizuki E, Oshima T. Conformational analysis in the reversible intramolecular [2+2] photocycloaddition of diphenylbicyclo[4.2.0]oct-3-ene-2,5-diones. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Intramolecular [3+2] cycloaddition reaction of α,β-enoate derivatives having allylsilane parts: 1,1′-biphenyl-2,2′-di(triflyl)amide (BIPAM)+2Me2AlCl as a novel Lewis acid. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.04.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chabaud L, James P, Landais Y. Allylsilanes in Organic Synthesis − Recent Developments. European J Org Chem 2004. [DOI: 10.1002/ejoc.200300789] [Citation(s) in RCA: 204] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Laurent Chabaud
- University Bordeaux‐I, Laboratoire de Chimie Organique et Organométallique, 351, Cours de la Libération, 33405 Talence Cedex, France, Fax: (internat.) + 33‐5‐40006286
| | - Philippe James
- University Bordeaux‐I, Laboratoire de Chimie Organique et Organométallique, 351, Cours de la Libération, 33405 Talence Cedex, France, Fax: (internat.) + 33‐5‐40006286
| | - Yannick Landais
- University Bordeaux‐I, Laboratoire de Chimie Organique et Organométallique, 351, Cours de la Libération, 33405 Talence Cedex, France, Fax: (internat.) + 33‐5‐40006286
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Chatterjee AK, Choi TL, Sanders DP, Grubbs RH. A General Model for Selectivity in Olefin Cross Metathesis. J Am Chem Soc 2003; 125:11360-70. [PMID: 16220959 DOI: 10.1021/ja0214882] [Citation(s) in RCA: 1227] [Impact Index Per Article: 58.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In recent years, olefin cross metathesis (CM) has emerged as a powerful and convenient synthetic technique in organic chemistry; however, as a general synthetic method, CM has been limited by the lack of predictability in product selectivity and stereoselectivity. Investigations into olefin cross metathesis with several classes of olefins, including substituted and functionalized styrenes, secondary allylic alcohols, tertiary allylic alcohols, and olefins with alpha-quaternary centers, have led to a general model useful for the prediction of product selectivity and stereoselectivity in cross metathesis. As a general ranking of olefin reactivity in CM, olefins can be categorized by their relative abilities to undergo homodimerization via cross metathesis and the susceptibility of their homodimers toward secondary metathesis reactions. When an olefin of high reactivity is reacted with an olefin of lower reactivity (sterically bulky, electron-deficient, etc.), selective cross metathesis can be achieved using feedstock stoichiometries as low as 1:1. By employing a metathesis catalyst with the appropriate activity, selective cross metathesis reactions can be achieved with a wide variety of electron-rich, electron-deficient, and sterically bulky olefins. Application of this model has allowed for the prediction and development of selective cross metathesis reactions, culminating in unprecedented three-component intermolecular cross metathesis reactions.
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Affiliation(s)
- Arnab K Chatterjee
- Arnold and Mabel Beckman Laboratories for Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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Namyslo JC, Kaufmann DE. The application of cyclobutane derivatives in organic synthesis. Chem Rev 2003; 103:1485-537. [PMID: 12683789 DOI: 10.1021/cr010010y] [Citation(s) in RCA: 532] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jan C Namyslo
- Institut für Organische Chemie, Technische Universität Clausthal, 38678 Clausthal-Zellerfeld, Germany
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: annual survey covering the year 1999. Coord Chem Rev 2001. [DOI: 10.1016/s0010-8545(00)00394-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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