51
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Britten TK, Kemmitt PD, Halcovitch NR, Coote SC. 4-π-Photocyclization of 1,2-Dihydropyridazines: An Approach to Bicyclic 1,2-Diazetidines with Rich Synthetic Potential. Org Lett 2019; 21:9232-9235. [PMID: 31696716 DOI: 10.1021/acs.orglett.9b03613] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 4-π-photocyclization of a range of 1,2-dihydropyridazines is described, generating bicyclic 1,2-diazetidines in high yields on multigram scale. The key bicyclic 1,2-diazetidines are versatile synthetic intermediates and were easily converted into a range of novel derivatives, including functionalized 1,2-diazetidines, cyclobutenes, cyclobutanes, and 1,3-dienes.
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Affiliation(s)
- Thomas K Britten
- Department of Chemistry , Lancaster University , Bailrigg, Lancaster , LA1 4YB , U.K
| | - Paul D Kemmitt
- Medicinal Chemistry, Research and Early Development, Oncology R & D , AstraZeneca , Cambridge , CB10 1XL , U.K
| | - Nathan R Halcovitch
- Department of Chemistry , Lancaster University , Bailrigg, Lancaster , LA1 4YB , U.K
| | - Susannah C Coote
- Department of Chemistry , Lancaster University , Bailrigg, Lancaster , LA1 4YB , U.K
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52
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Cox B, Booker-Milburn KI, Elliott LD, Robertson-Ralph M, Zdorichenko V. Escaping from Flatland: [2 + 2] Photocycloaddition; Conformationally Constrained sp 3-rich Scaffolds for Lead Generation. ACS Med Chem Lett 2019; 10:1512-1517. [PMID: 31749903 DOI: 10.1021/acsmedchemlett.9b00409] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 10/22/2019] [Indexed: 11/28/2022] Open
Abstract
Pressure on researchers to deliver new medicines to the patient continues to grow. Attrition rates in the research and development process present a significant challenge to the viability of the current model of drug discovery. Analysis shows that increasing the three-dimensionality of potential drug candidates decreases the risk of attrition, and it is for this reason many workers have taken a new look at the power of photochemistry, in particular photocycloadditions, as a means to generate novel sp3-rich scaffolds for use in drug discovery programs. The viability of carrying out photochemical reactions on scale is also being addressed by the introduction of new technical developments.
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Affiliation(s)
- Brian Cox
- School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, U.K
- Photodiversity Ltd., c/o School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, U.K
| | - Kevin I. Booker-Milburn
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
- Photodiversity Ltd., c/o School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Luke D. Elliott
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Michael Robertson-Ralph
- Photodiversity Ltd., c/o School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, U.K
| | - Victor Zdorichenko
- Photodiversity Ltd., c/o School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, U.K
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53
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Brandão P, Pineiro M, Pinho e Melo TMVD. Flow Chemistry: Towards A More Sustainable Heterocyclic Synthesis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901335] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Pedro Brandão
- CQC and Department of Chemistry; University of Coimbra; 3004-535 Coimbra Portugal
- Centro de Química de Évora; Institute for Research and Advanced Studies; University of Évora; 7000 Évora Portugal
| | - Marta Pineiro
- CQC and Department of Chemistry; University of Coimbra; 3004-535 Coimbra Portugal
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54
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Vu MD, Das M, Guo A, Ang ZE, D̵okić M, Soo HS, Liu XW. Visible-Light Photoredox Enables Ketone Carbonyl Alkylation for Easy Access to Tertiary Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02401] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Minh Duy Vu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Mrinmoy Das
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Aoxin Guo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Zi-En Ang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Miloš D̵okić
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Han Sen Soo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Xue-Wei Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
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55
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Bechtella L, Kirschbaum C, Cosset M, Clodic G, Matheron L, Bolbach G, Sagan S, Walrant A, Sachon E. Benzophenone Photoreactivity in a Lipid Bilayer To Probe Peptide/Membrane Interactions: Simple System, Complex Information. Anal Chem 2019; 91:9102-9110. [DOI: 10.1021/acs.analchem.9b01584] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Leïla Bechtella
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Carla Kirschbaum
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
- Sorbonne Université, Institut de Biologie Paris Seine, Plateforme de spectrométrie de masse et protéomique, 75005 Paris, France
| | - Marine Cosset
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Gilles Clodic
- Sorbonne Université, Institut de Biologie Paris Seine, Plateforme de spectrométrie de masse et protéomique, 75005 Paris, France
| | - Lucrèce Matheron
- Sorbonne Université, Institut de Biologie Paris Seine, Plateforme de spectrométrie de masse et protéomique, 75005 Paris, France
| | - Gérard Bolbach
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
- Sorbonne Université, Institut de Biologie Paris Seine, Plateforme de spectrométrie de masse et protéomique, 75005 Paris, France
| | - Sandrine Sagan
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Astrid Walrant
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Emmanuelle Sachon
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
- Sorbonne Université, Institut de Biologie Paris Seine, Plateforme de spectrométrie de masse et protéomique, 75005 Paris, France
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56
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Flores DM, Schmidt VA. Intermolecular 2 + 2 Carbonyl–Olefin Photocycloadditions Enabled by Cu(I)–Norbornene MLCT. J Am Chem Soc 2019; 141:8741-8745. [DOI: 10.1021/jacs.9b03775] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel M. Flores
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Valerie A. Schmidt
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
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57
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Xie X, Xia Y. Analysis of Conjugated Fatty Acid Isomers by the Paternò-Büchi Reaction and Trapped Ion Mobility Mass Spectrometry. Anal Chem 2019; 91:7173-7180. [DOI: 10.1021/acs.analchem.9b00374] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaobo Xie
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Xia
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
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58
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Jeck V, Korf A, Vosse C, Hayen H. Localization of double-bond positions in lipids by tandem mass spectrometry succeeding high-performance liquid chromatography with post-column derivatization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33 Suppl 1:86-94. [PMID: 30102803 DOI: 10.1002/rcm.8262] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/31/2018] [Accepted: 08/05/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Viola Jeck
- University of Münster, Institute of Inorganic and Analytical Chemistry, Corrensstraße 30, 48149, Münster, Germany
| | - Ansgar Korf
- University of Münster, Institute of Inorganic and Analytical Chemistry, Corrensstraße 30, 48149, Münster, Germany
| | - Christian Vosse
- University of Münster, Institute of Inorganic and Analytical Chemistry, Corrensstraße 30, 48149, Münster, Germany
| | - Heiko Hayen
- University of Münster, Institute of Inorganic and Analytical Chemistry, Corrensstraße 30, 48149, Münster, Germany
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59
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Dantas JA, Correia JTM, Paixão MW, Corrêa AG. Photochemistry of Carbonyl Compounds: Application in Metal‐Free Reactions. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900044] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Juliana A. Dantas
- Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São Carlos 13565-905 São Carlos, SP Brazil
| | - José Tiago M. Correia
- Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São Carlos 13565-905 São Carlos, SP Brazil
| | - Marcio W. Paixão
- Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São Carlos 13565-905 São Carlos, SP Brazil
| | - Arlene G. Corrêa
- Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São Carlos 13565-905 São Carlos, SP Brazil
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60
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Marchetti B, Karsili TNV, Ashfold MNR. Exploring Norrish type I and type II reactions: an ab initio mechanistic study highlighting singlet-state mediated chemistry. Phys Chem Chem Phys 2019; 21:14418-14428. [DOI: 10.1039/c8cp07292b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Norrish reactions are important photo-induced reactions in mainstream organic chemistry and are implicated in many industrially and biologically relevant processes and in the processing of carbonyl molecules in the atmosphere.
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Affiliation(s)
- Barbara Marchetti
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
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61
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Abstract
This review represents the most complete description of the scientific results obtained on a photochemical reaction described 110 years ago by an Italian scientist.
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Affiliation(s)
- Maurizio D'Auria
- Dipartimento di Scienze
- Università della Basilicata
- 85100 Potenza
- Italy
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62
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Stegbauer S, Jandl C, Bach T. Enantioselective Lewis Acid Catalyzed ortho Photocycloaddition of Olefins to Phenanthrene-9-carboxaldehydes. Angew Chem Int Ed Engl 2018; 57:14593-14596. [PMID: 30225921 PMCID: PMC6220838 DOI: 10.1002/anie.201808919] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/07/2018] [Indexed: 11/21/2022]
Abstract
Visible-light irradiation (λ=457 nm) enabled the enantioselective ortho photocycloaddition of olefins to phenanthrene-9-carboxaldehydes (15 examples, 46-93 % yield, 82-98 % ee). A chiral oxazaborolidine Lewis acid (20 mol %) was employed as the catalyst. It operates by coordination to the aldehyde inducing a bathochromic absorption shift beyond the nπ* absorption of the uncomplexed aldehyde. At long wavelengths the Lewis acid complex is exclusively excited; within the complex, one enantiotopic face of the aromatic aldehyde is efficiently shielded. Lewis acid coordination also alters the type selectivity and the simple diastereoselectivity of the photocycloaddition.
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Affiliation(s)
- Simone Stegbauer
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstr. 485747GarchingGermany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstr. 485747GarchingGermany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstr. 485747GarchingGermany
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63
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Stegbauer S, Jandl C, Bach T. Enantioselektive Lewis-Säure-katalysierte ortho
-Photocycloaddition von Phenanthren-9-carbaldehyden. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808919] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Simone Stegbauer
- Department Chemie und Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstr. 4 85747 Garching Deutschland
| | - Christian Jandl
- Department Chemie und Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstr. 4 85747 Garching Deutschland
| | - Thorsten Bach
- Department Chemie und Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstr. 4 85747 Garching Deutschland
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64
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Poscharny K, Fabry D, Heddrich S, Sugiono E, Liauw M, Rueping M. Machine assisted reaction optimization: A self-optimizing reactor system for continuous-flow photochemical reactions. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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65
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Buendia J, Chang Z, Eijsberg H, Guillot R, Frongia A, Secci F, Xie J, Robin S, Boddaert T, Aitken DJ. Preparation of Cyclobutene Acetals and Tricyclic Oxetanes through Photochemical Tandem and Cascade Reactions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803571] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Julien Buendia
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
| | - Zong Chang
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
| | - Hendrik Eijsberg
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
- Dipartimento di Scienze Chimiche e GeologicheUniversità degli Studi di Cagliari Cagliari Italy
| | - Régis Guillot
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
| | - Angelo Frongia
- Dipartimento di Scienze Chimiche e GeologicheUniversità degli Studi di Cagliari Cagliari Italy
| | - Francesco Secci
- Dipartimento di Scienze Chimiche e GeologicheUniversità degli Studi di Cagliari Cagliari Italy
| | - Juan Xie
- PPSM, ENS Paris-SaclayUniversité Paris-Saclay, CNRS UMR 8531 Cachan France
| | - Sylvie Robin
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
- UFR Sciences Pharmaceutiques et BiologiquesUniversité Paris Descartes Paris France
| | - Thomas Boddaert
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
| | - David J. Aitken
- ICMMOUniversité Paris-Sud, Université Paris-Saclay, CNRS UMR 8182 Orsay France
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66
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Buendia J, Chang Z, Eijsberg H, Guillot R, Frongia A, Secci F, Xie J, Robin S, Boddaert T, Aitken DJ. Preparation of Cyclobutene Acetals and Tricyclic Oxetanes through Photochemical Tandem and Cascade Reactions. Angew Chem Int Ed Engl 2018; 57:6592-6596. [PMID: 29644774 DOI: 10.1002/anie.201803571] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 04/06/2018] [Indexed: 01/29/2023]
Abstract
We describe a photochemical reaction using two starting materials, a cyclopent-2-enone and an alkene, which are transformed in a controlled manner via the initial [2+2]-photocycloaddition adducts into cyclobutene aldehydes (conveniently trapped as stable acetals) or unprecedented angular tricyclic 4:4:4 oxetane-containing skeletons. These compounds are formed through tandem or triple cascade photochemical reaction processes, respectively. Small libraries of each compound class were prepared, thus suggesting that this photochemistry approach opens new opportunities for synthesis design and for widening molecular diversity.
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Affiliation(s)
- Julien Buendia
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
| | - Zong Chang
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
| | - Hendrik Eijsberg
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cagliari, Italy
| | - Régis Guillot
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
| | - Angelo Frongia
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cagliari, Italy
| | - Francesco Secci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cagliari, Italy
| | - Juan Xie
- PPSM, ENS Paris-Saclay, Université Paris-Saclay, CNRS UMR, 8531, Cachan, France
| | - Sylvie Robin
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
- UFR Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Paris, France
| | - Thomas Boddaert
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
| | - David J Aitken
- ICMMO, Université Paris-Sud, Université Paris-Saclay, CNRS UMR, 8182, Orsay, France
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