1
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Trauner F, Ghazali R, Rettig J, Thiele CM, Didier D. Stereoselective polar radical crossover for the functionalization of strained-ring systems. Commun Chem 2024; 7:139. [PMID: 38898159 PMCID: PMC11187220 DOI: 10.1038/s42004-024-01221-3] [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: 01/18/2024] [Accepted: 06/06/2024] [Indexed: 06/21/2024] Open
Abstract
Radical-polar crossover of organoborates is a poweful tool that enables the creation of two C-C bonds simultaneously. Small ring systems have become essential motifs in drug discovery and medicinal chemistry. However, step-economic methods for their selective functionalization remains scarce. Here we present a one-pot strategy that merges a simple preparation of strained organoboron species with the recently popularized polar radical crossover of borate derivatives to stereoselectively access tri-substituted azetidines, cyclobutanes and five-membered carbo- and heterocycles.
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Affiliation(s)
- Florian Trauner
- Technische Universität Darmstadt, Clemens-Schöpf-Insitut für Organische Chemie und Biochemie, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
- Ludwig-Maximilians Universität, Department Chemie, Butenandtstr. 5, 81377, München, Germany
| | - Rahma Ghazali
- Technische Universität Darmstadt, Clemens-Schöpf-Insitut für Organische Chemie und Biochemie, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
| | - Jan Rettig
- Technische Universität Darmstadt, Clemens-Schöpf-Insitut für Organische Chemie und Biochemie, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
| | - Christina M Thiele
- Technische Universität Darmstadt, Clemens-Schöpf-Insitut für Organische Chemie und Biochemie, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
| | - Dorian Didier
- Technische Universität Darmstadt, Clemens-Schöpf-Insitut für Organische Chemie und Biochemie, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany.
- Ludwig-Maximilians Universität, Department Chemie, Butenandtstr. 5, 81377, München, Germany.
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2
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Lin SL, Chen YH, Liu HH, Xiang SH, Tan B. Enantioselective Synthesis of Chiral Cyclobutenes Enabled by Brønsted Acid-Catalyzed Isomerization of BCBs. J Am Chem Soc 2023; 145:21152-21158. [PMID: 37732875 DOI: 10.1021/jacs.3c06525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Chiral cyclobutene units are commonly found in natural products and biologically active molecules. Transition-metal-catalysis has been extensively used in asymmetric synthesis of such structures, while organocatalytic approaches remain elusive. In this study, bicyclo[1.1.0]butanes are involved in enantioselective transformation for the first time to offer a highly efficient route toward cyclobutenes with good regio- and enantiocontrol. The utilization of N-triflyl phosphoramide as a chiral Brønsted acid promoter enables this isomerization process to proceed under mild conditions with low catalyst loading as well as good functional group compatibility. The resulting chiral cyclobutenes could serve as platform molecules for downstream manipulations with excellent reservation of stereochemical integrity, demonstrating the synthetic practicality of the developed method. Control experiments have also been performed to verify the formation of a key carbocation intermediate at the benzylic position.
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Affiliation(s)
- Si-Li Lin
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ye-Hui Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Huan-Huan Liu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Tan
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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3
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Zhao H, Lin Y, Jiang M, Su B. A general catalytic synthetic strategy for highly strained methylenecyclobutanes and spiromethylenecyclobutanes. Chem Sci 2023; 14:7897-7904. [PMID: 37502320 PMCID: PMC10370550 DOI: 10.1039/d3sc01103h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/09/2023] [Indexed: 07/29/2023] Open
Abstract
Highly strained methylenecyclobutanes (MCBs) are intriguing scaffolds in synthetic chemistry and drug discovery, but there is no such strategy that enables the synthesis of structurally diverse MCBs with defined stereochemistry. We report a general synthetic strategy for (boromethylene)cyclobutanes (BMCBs) and spiro-BMCBs by a challenging Cu-catalyzed highly chemo-, stereo-, and regioselective borylative cyclization of aliphatic alkynes. This strategy not only enables the installation of various functionalities at each site on the MCB skeleton with unambiguous stereochemistry but also introduces a versatile boromethylene unit that is readily transformable to a wide range of new functional groups; these features significantly expand the structural diversity of MCBs and are particularly valuable in drug discovery. The concise and divergent total syntheses of four cyclobutane-containing natural products were achieved from one common BMCB obtained by this strategy. The origin of the high regioselectivity in the borylcupration of alkynes and the high efficiency of the strained ring cyclization was also studied.
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Affiliation(s)
- Haotian Zhao
- State Key Laboratory of Medical Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
| | - Yu Lin
- State Key Laboratory of Medical Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
| | - Mingyu Jiang
- State Key Laboratory of Medical Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
| | - Bo Su
- State Key Laboratory of Medical Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
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4
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Chen J, Zhou Q, Fang H, Lu P. Dancing on Ropes ‐ Enantioselective Functionalization of Preformed Four‐membered Carbocycles. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Chen
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu Shanghai 200433 China
| | - Qiang Zhou
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu Shanghai 200433 China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, No 38 Tongyan Road Tianjin 300350 China
| | - Ping Lu
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu Shanghai 200433 China
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5
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Krieg SC, Grimmer J, Kramer P, Bolte M, Kelm H, Manolikakes G. Oxyenamides as Versatile Building Blocks for a Highly Stereoselective One-Pot Synthesis of the 1,3-Diamino-2-ol-Scaffold Containing Three Continuous Stereocenters. Angew Chem Int Ed Engl 2021; 60:23667-23671. [PMID: 34463410 PMCID: PMC8597051 DOI: 10.1002/anie.202109752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/22/2021] [Indexed: 12/15/2022]
Abstract
A highly diastereoselective one-pot synthesis of the 1,3-diamino-2-alcohol unit bearing three continuous stereocenters is described. This method utilizes 2-oxyenamides as a novel type of building block for the rapid assembly of the 1,3-diamine scaffold containing an additional stereogenic oxygen functionality at the C2 position. A stereoselective preparation of the required (Z)-oxyenamides is reported as well.
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Affiliation(s)
- Sara-Cathrin Krieg
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Jennifer Grimmer
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Philipp Kramer
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Michael Bolte
- Institute of Inorganic and Analytical Chemistry, Goethe University Frankfurt am Main, Max-von-Laue-Strasse 7, 60438, Frankfurt am Main, Germany
| | - Harald Kelm
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
| | - Georg Manolikakes
- Department of Chemistry, Technical University Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663, Kaiserslautern, Germany
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6
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Krieg S, Grimmer J, Kramer P, Bolte M, Kelm H, Manolikakes G. Oxyenamide als vielseitige Bausteine für eine hochgradig stereoselektive Eintopf‐Synthese der 1,3‐Diamino‐2‐ol‐Einheit mit drei fortlaufenden Stereozentren. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sara‐Cathrin Krieg
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Jennifer Grimmer
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Philipp Kramer
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie Goethe Universität Frankfurt am Main Max-von-Laue-Straße 7 60438 Frankfurt am Main Deutschland
| | - Harald Kelm
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
| | - Georg Manolikakes
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin-Schrödinger-Straße, Geb. 54 67663 Kaiserslautern Deutschland
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7
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Didier D, Reiners F. Uncommon Four-Membered Building Blocks - Cyclobutenes, Azetines and Thietes. CHEM REC 2021; 21:1144-1160. [PMID: 33734571 DOI: 10.1002/tcr.202100011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/15/2022]
Abstract
Strained ring systems have gained considerable importance over the last few years for their implication in natural product syntheses or in drug discovery programs. We present herein a recollection of our work on the construction and functionalization of unsaturated four-membered carbo- and heterocycles in the context of the literature, as well as their applications in further reactions.
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Affiliation(s)
- Dorian Didier
- Department of Chemistry, Ludwig-Maximilians Universität, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Felix Reiners
- Department of Chemistry, Ludwig-Maximilians Universität, Butenandtstraße 5-13, 81377, Munich, Germany
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8
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Reiners F, Joseph E, Nißl B, Didier D. Stereoselective Access to Azetidine-Based α-Amino Acids and Applications to Small Peptide Synthesis. Org Lett 2020; 22:8533-8537. [PMID: 33052683 DOI: 10.1021/acs.orglett.0c03131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Non-natural azetidine-based amino acids (Aze) present interesting features in protein engineering. A simple organometallic route toward unsaturated carboxylic acid precursors is presented. Subsequent metal-catalyzed asymmetric reduction allowed for the synthesis of a new library of 2-azetidinylcarboxylic acids, which were finally employed in the formation of small peptide chains.
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Affiliation(s)
- Felix Reiners
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Emanuel Joseph
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Benedikt Nißl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
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9
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Ernouf G, Chirkin E, Rhyman L, Ramasami P, Cintrat J. Photochemical Strain‐Release‐Driven Cyclobutylation of C(sp
3
)‐Centered Radicals. Angew Chem Int Ed Engl 2020; 59:2618-2622. [DOI: 10.1002/anie.201908951] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/11/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Guillaume Ernouf
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Egor Chirkin
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Lydia Rhyman
- Computational Chemistry GroupDepartment of ChemistryFaculty of ScienceUniversity of Mauritius Réduit 80837 Mauritius
- Department of Chemical SciencesUniversity of Johannesburg Doornfontein Johannesburg 2028 South Africa
| | - Ponnadurai Ramasami
- Computational Chemistry GroupDepartment of ChemistryFaculty of ScienceUniversity of Mauritius Réduit 80837 Mauritius
- Department of Chemical SciencesUniversity of Johannesburg Doornfontein Johannesburg 2028 South Africa
| | - Jean‐Christophe Cintrat
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
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10
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Ernouf G, Chirkin E, Rhyman L, Ramasami P, Cintrat J. Photochemical Strain‐Release‐Driven Cyclobutylation of C(sp
3
)‐Centered Radicals. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908951] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Guillaume Ernouf
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Egor Chirkin
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Lydia Rhyman
- Computational Chemistry GroupDepartment of ChemistryFaculty of ScienceUniversity of Mauritius Réduit 80837 Mauritius
- Department of Chemical SciencesUniversity of Johannesburg Doornfontein Johannesburg 2028 South Africa
| | - Ponnadurai Ramasami
- Computational Chemistry GroupDepartment of ChemistryFaculty of ScienceUniversity of Mauritius Réduit 80837 Mauritius
- Department of Chemical SciencesUniversity of Johannesburg Doornfontein Johannesburg 2028 South Africa
| | - Jean‐Christophe Cintrat
- Service de Chimie Bio-organique et Marquage (SCBM)CEA, Université Paris-Saclay 91191 Gif-sur-Yvette France
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11
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Music A, Baumann AN, Spieß P, Hilgert N, Köllen M, Didier D. Single-Pot Access to Bisorganoborinates: Applications in Zweifel Olefination. Org Lett 2019; 21:2189-2193. [PMID: 30864807 DOI: 10.1021/acs.orglett.9b00493] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Zweifel olefination is a catalyst-free reaction that serves alkene functionalization. While most methods employ commercially available boron pinacol esters, we have assembled a sequence in which the two partners of the formal coupling reaction are installed successively, starting from inexpensive boron alkoxides. The in situ formation of bisorganoborinates was accomplished by consecutive reaction of two different organometallic species. This single-pot procedure represents a great advancement in the generation of organoborinates and their involvement in C-C bond formation.
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Affiliation(s)
- Arif Music
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
| | - Andreas N Baumann
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
| | - Philipp Spieß
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
| | - Nicolas Hilgert
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
| | - Martin Köllen
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 Munich , Germany
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12
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Eisold M, Müller-Deku A, Reiners F, Didier D. Parallel Approaches for the Functionalization of Thietes: α-Metalation versus C–H Activation. Org Lett 2018; 20:4654-4658. [DOI: 10.1021/acs.orglett.8b01961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Adrian Müller-Deku
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Felix Reiners
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
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13
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Baumann AN, Schüppel F, Eisold M, Kreppel A, de Vivie-Riedle R, Didier D. Oxidative Ring Contraction of Cyclobutenes: General Approach to Cyclopropylketones including Mechanistic Insights. J Org Chem 2018; 83:4905-4921. [DOI: 10.1021/acs.joc.8b00297] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andreas N. Baumann
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Franziska Schüppel
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Andrea Kreppel
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Regina de Vivie-Riedle
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 81377 Munich, Germany
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14
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García-Morales C, Ranieri B, Escofet I, López-Suarez L, Obradors C, Konovalov AI, Echavarren AM. Enantioselective Synthesis of Cyclobutenes by Intermolecular [2+2] Cycloaddition with Non-C 2 Symmetric Digold Catalysts. J Am Chem Soc 2017; 139:13628-13631. [PMID: 28922911 PMCID: PMC5679663 DOI: 10.1021/jacs.7b07651] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 01/12/2023]
Abstract
The enantioselective intermolecular gold(I)-catalyzed [2+2] cycloaddition of terminal alkynes and alkenes has been achieved using non-C2-chiral Josiphos digold(I) complexes as catalysts, by the formation of the monocationic complex. This new approach has been applied to the enantioselective total synthesis of rumphellaone A.
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Affiliation(s)
- Cristina García-Morales
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Beatrice Ranieri
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Imma Escofet
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Laura López-Suarez
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Carla Obradors
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Andrey I. Konovalov
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical
Research of Catalonia (ICIQ), Barcelona Institute of
Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Orgànica i Analítica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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15
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Eisold M, Didier D. Stereoselective Access to Alkylidenecyclobutanes through γ-Selective Cross-Coupling Strategies. Org Lett 2017; 19:4046-4049. [PMID: 28726420 DOI: 10.1021/acs.orglett.7b01803] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alkylidenecyclobutanes (ACBs) containing all-carbon quaternary stereocenters were simply and efficiently synthesized by combining boron-homologation and γ-selective cross-coupling strategies. This unique sequence led to excellent regio- and diastereoselectivities in the generation of targeted four-membered rings with up to 99% enantiomeric excess using chiral substrates. In addition to the original synthesis of ACBs, the first asymmetric catalytic formation of quaternary stereocenters based on γ-selective cross-coupling reactions is finally shown.
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Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstraße 5-13, 81377 Munich, Germany
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16
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de Orbe ME, Amenós L, Kirillova MS, Wang Y, López-Carrillo V, Maseras F, Echavarren AM. Cyclobutene vs 1,3-Diene Formation in the Gold-Catalyzed Reaction of Alkynes with Alkenes: The Complete Mechanistic Picture. J Am Chem Soc 2017; 139:10302-10311. [PMID: 28700226 PMCID: PMC5543397 DOI: 10.1021/jacs.7b03005] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The intermolecular gold(I)-catalyzed reaction between arylalkynes and alkenes leads to cyclobutenes by a [2 + 2] cycloaddition, which takes place stepwise, first by formation of cyclopropyl gold(I) carbenes, followed by a ring expansion. However, 1,3-butadienes are also formed in the case of ortho-substituted arylalkynes by a metathesis-type process. The corresponding reaction of alkenes with aryl-1,3-butadiynes, ethynylogous to arylalkynes, leads exclusively to cyclobutenes. A comprehensive mechanism for the gold(I)-catalyzed reaction of alkynes with alkenes is proposed on the basis of density functional theory calculations, which shows that the two pathways leading to cyclobutenes or dienes are very close in energy. The key intermediates are cyclopropyl gold(I) carbenes, which have been independently generated by retro-Buchner reaction from stereodefined 1a,7b-dihydro-1H-cyclopropa[a]naphthalenes.
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Affiliation(s)
- M Elena de Orbe
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Laura Amenós
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Mariia S Kirillova
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Yahui Wang
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Verónica López-Carrillo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química, Universitat Autònoma de Barcelona , 08193 Bellaterra, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology , Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili , C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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17
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Alcaide B, Almendros P, Lázaro-Milla C. Regioselective Synthesis of Heteroatom-Functionalized Cyclobutene-triflones and Cyclobutenones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700492] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General; Consejo Superior de Investigaciones Científicas; IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
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18
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Nocquet PA, Corbu A, Meerpoel L, Stansfield I, Berthelot D, Angibaud P, Cossy J. Diastereoselective Synthesis of trans
-2,3-Diaryl(heteroaryl)-3,6-dihydropyrans by an Allylboration/Ring-Closing-Metathesis Sequence. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pierre-Antoine Nocquet
- Laboratoire de Chimie Organique; Institute of Chemistry; Biology and Innovation (CBI); ESPCI Paris; PSL Research University, CNRS; 10 rue Vauquelin 75231 Paris France
| | - Andrei Corbu
- Laboratoire de Chimie Organique; Institute of Chemistry; Biology and Innovation (CBI); ESPCI Paris; PSL Research University, CNRS; 10 rue Vauquelin 75231 Paris France
| | - Lieven Meerpoel
- Janssen Research & Development; Division of Janssen Pharmaceutica NV; Turnhoutseweg 30 2340 Beerse Belgium
| | - Ian Stansfield
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Oncology and Medicinal Chemistry; Campus de Maigremont 27106 Val de Reuil CEDEX France
| | - Didier Berthelot
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Oncology and Medicinal Chemistry; Campus de Maigremont 27106 Val de Reuil CEDEX France
| | - Patrick Angibaud
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Oncology and Medicinal Chemistry; Campus de Maigremont 27106 Val de Reuil CEDEX France
| | - Janine Cossy
- Laboratoire de Chimie Organique; Institute of Chemistry; Biology and Innovation (CBI); ESPCI Paris; PSL Research University, CNRS; 10 rue Vauquelin 75231 Paris France
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19
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Baumann AN, Eisold M, Didier D. Stereoselective Sequence toward Biologically Active Fused Alkylidenecyclobutanes. Org Lett 2017; 19:2114-2117. [PMID: 28374585 DOI: 10.1021/acs.orglett.7b00724] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Combining an efficient preparation of cyclobutenylmetal species, high-yielding cross-coupling reactions, and highly diastereoselective [4 + 2]-cycloaddition led to opening a new route toward the synthesis of fused alkylidenecyclobutanes containing up to five consecutive stereocenters. New complex architectures, analogues to protoilludane skeletons, were obtained in a very efficient manner and with a minimum number of steps starting from commercial sources and were tested for their cytotoxicity against leukemia cell lines HL60.
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Affiliation(s)
- Andreas N Baumann
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstraße 5-13, 81377 Munich, Germany
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20
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Naidu VR, Posevins D, Volla CMR, Bäckvall J. Selective Cascade Reaction of Bisallenes via Palladium‐Catalyzed Aerobic Oxidative Carbocyclization–Borylation and Aldehyde Trapping. Angew Chem Int Ed Engl 2017; 56:1590-1594. [DOI: 10.1002/anie.201610524] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Veluru Ramesh Naidu
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University 10691 Stockholm Sweden
| | - Daniels Posevins
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University 10691 Stockholm Sweden
| | - Chandra M. R. Volla
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University 10691 Stockholm Sweden
- Present address: Department of ChemistryIndian Institute of Technology-Bombay, Powai Mumbai 400076 India
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University 10691 Stockholm Sweden
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21
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Naidu VR, Posevins D, Volla CMR, Bäckvall JE. Selective Cascade Reaction of Bisallenes via Palladium-Catalyzed Aerobic Oxidative Carbocyclization-Borylation and Aldehyde Trapping. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610524] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Veluru Ramesh Naidu
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Daniels Posevins
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Chandra M. R. Volla
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
- Present address: Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 India
| | - Jan-E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
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22
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Eisold M, Baumann AN, Kiefl GM, Emmerling ST, Didier D. Unsaturated Four-Membered Rings: Efficient Strategies for the Construction of Cyclobutenes and Alkylidenecyclobutanes. Chemistry 2016; 23:1634-1644. [PMID: 27862444 DOI: 10.1002/chem.201604585] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Indexed: 01/08/2023]
Abstract
Our recent studies of the diastereo- and enantioselective formation of strained alkylidenecycloalkanes drove us to more-thoroughly investigate the formation of four-membered rings for which only few efficient methods are described. We first developed a strategy to diversify the saturated part of the four-membered ring and applied it to a highly diastereoselective synthesis of more-elaborate alkylidenecyclobutanes, which completed our precedent studies. In parallel, cyclobutene structures were built employing simple organometallic methods and further functionalized to give a diverse range of new substitution patterns, which consequently enriched the pool of cyclobutene-based building blocks.
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Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Andreas N Baumann
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Gabriel M Kiefl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Sebastian T Emmerling
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
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23
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Eisold M, Kiefl GM, Didier D. Single-Pot Asymmetric Approach toward Enantioenriched Quaternary Stereocenter-Containing Alkylidenecyclobutanes. Org Lett 2016; 18:3022-5. [PMID: 27281109 DOI: 10.1021/acs.orglett.6b01432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Enantioenriched alkylidenecyclobutanes possessing a quaternary stereogenic center, usually difficult to access, have been synthesized by combining a double boron-homologation and an allylboration through a highly efficient and diastereoselective one-pot process. Starting from commercially available substrates, this protocol represents a simple way of accessing chiral unsaturated four-membered ring systems with excellent stereoisomeric ratios.
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Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Gabriel M Kiefl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
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24
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Baumann AN, Music A, Karaghiosoff K, Didier D. Highly diastereoselective approach to methylenecyclopropanes via boron-homologation/allylboration sequences. Chem Commun (Camb) 2016; 52:2529-32. [PMID: 26741566 DOI: 10.1039/c5cc09904h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A simple and efficient diastereoselective synthesis of methylenecyclopropanes is described, in which boron-homologation and allylboration are merged into a one-pot process, starting from in situ generated cyclopropenyllithium species. This unprecedented methodology opens a new route to strained alkylidenecycloalkanes containing a quaternary stereocenter, in high yields and excellent diastereomeric ratios.
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Affiliation(s)
- A N Baumann
- Department of Chemistry and Pharmacy, Ludwig-Maximillians-University Munich, Butenandtstrasse 5-13, 81377 Munich, Germany.
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