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Gabbey AL, Scotchburn K, Rousseaux SAL. Metal-catalysed C-C bond formation at cyclopropanes. Nat Rev Chem 2023:10.1038/s41570-023-00499-6. [PMID: 37217564 DOI: 10.1038/s41570-023-00499-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Cyclopropanes are important substructures in natural products and pharmaceuticals. Although traditional methods for their incorporation rely on cyclopropanation of an existing scaffold, the advent of transition-metal catalysis has enabled installation of functionalized cyclopropanes using cross-coupling reactions. The unique bonding and structural properties of cyclopropane render it more easily functionalized in transition-metal-catalysed cross-couplings than other C(sp3) substrates. The cyclopropane coupling partner can participate in polar cross-coupling reactions either as a nucleophile (organometallic reagents) or as an electrophile (cyclopropyl halides). More recently, single-electron transformations featuring cyclopropyl radicals have emerged. This Review will provide an overview of transition-metal-catalysed C-C bond formation reactions at cyclopropane, covering both traditional and current strategies, and the benefits and limitations of each.
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Affiliation(s)
- Alexis L Gabbey
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Katerina Scotchburn
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Sophie A L Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, ON, Canada.
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2
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Breitwieser K, Chen P. Development of the “Diverted Heck” Reaction for the Synthesis of Five-Membered Rings. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kevin Breitwieser
- Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich CH-8093, Switzerland
| | - Peter Chen
- Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich CH-8093, Switzerland
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Odachowski M, Bonet A, Essafi S, Conti-Ramsden P, Harvey JN, Leonori D, Aggarwal VK. Development of Enantiospecific Coupling of Secondary and Tertiary Boronic Esters with Aromatic Compounds. J Am Chem Soc 2016; 138:9521-32. [PMID: 27384259 PMCID: PMC5063455 DOI: 10.1021/jacs.6b03963] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
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The stereospecific
cross-coupling of secondary boronic esters with
sp2 electrophiles (Suzuki–Miyaura reaction) is a
long-standing problem in synthesis, but progress has been achieved
in specific cases using palladium catalysis. However, related couplings
with tertiary boronic esters are not currently achievable. To address
this general problem, we have focused on an alternative method exploiting
the reactivity of a boronate complex formed between an aryl lithium
and a boronic ester. We reasoned that subsequent addition of an oxidant
or an electrophile would remove an electron from the aromatic ring
or react in a Friedel–Crafts-type manner, respectively, generating
a cationic species, which would trigger 1,2-migration of the boron
substituent, creating the new C–C bond. Elimination (preceded
by further oxidation in the former case) would result in rearomatization
giving the coupled product stereospecifically. Initial work was examined
with 2-furyllithium. Although the oxidants tested were unsuccessful,
electrophiles, particularly NBS, enabled the coupling reaction to
occur in good yield with a broad range of secondary and tertiary boronic
esters, bearing different steric demands and functional groups (esters,
azides, nitriles, alcohols, and ethers). The reaction also worked
well with other electron-rich heteroaromatics and 6-membered ring
aromatics provided they had donor groups in the meta position. Conditions
were also found under which the B(pin)- moiety could be retained in
the product, ortho to the boron substituent. This protocol, which
created a new C(sp2)–C(sp3) and an adjacent
C–B bond, was again applicable to a range of secondary and
tertiary boronic esters. In all cases, the coupling reaction occurred
with complete stereospecificity. Computational studies verified the
competing processes involved and were in close agreement with the
experimental observations.
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Affiliation(s)
- Marcin Odachowski
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Amadeu Bonet
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Stephanie Essafi
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Philip Conti-Ramsden
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Jeremy N Harvey
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Daniele Leonori
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom.,School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Varinder K Aggarwal
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, United Kingdom
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4
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Trost BM, Ryan MC, Rao M. Chiral cyclopentadienylruthenium sulfoxide catalysts for asymmetric redox bicycloisomerization. Beilstein J Org Chem 2016; 12:1136-52. [PMID: 27559366 PMCID: PMC4979649 DOI: 10.3762/bjoc.12.110] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/03/2016] [Indexed: 01/19/2023] Open
Abstract
A full account of our efforts toward an asymmetric redox bicycloisomerization reaction is presented in this article. Cyclopentadienylruthenium (CpRu) complexes containing tethered chiral sulfoxides were synthesized via an oxidative [3 + 2] cycloaddition reaction between an alkyne and an allylruthenium complex. Sulfoxide complex 1 containing a p-anisole moiety on its sulfoxide proved to be the most efficient and selective catalyst for the asymmetric redox bicycloisomerization of 1,6- and 1,7-enynes. This complex was used to synthesize a broad array of [3.1.0] and [4.1.0] bicycles. Sulfonamide- and phosphoramidate-containing products could be deprotected under reducing conditions. Catalysis performed with enantiomerically enriched propargyl alcohols revealed a matched/mismatched effect that was strongly dependent on the nature of the solvent.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5580, USA
| | - Michael C Ryan
- Department of Chemistry, Stanford University, Stanford, California 94305-5580, USA
| | - Meera Rao
- Department of Chemistry, Stanford University, Stanford, California 94305-5580, USA
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5
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Leonori D, Aggarwal VK. Stereospezifische Kupplungen von sekundären und tertiären Boronsäureestern. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407701] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Leonori D, Aggarwal VK. Stereospecific couplings of secondary and tertiary boronic esters. Angew Chem Int Ed Engl 2014; 54:1082-96. [PMID: 25414056 DOI: 10.1002/anie.201407701] [Citation(s) in RCA: 248] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Indexed: 12/15/2022]
Abstract
This Minireview highlights advances in the Suzuki-Miyaura cross-coupling of secondary boron reagents for the creation of C-C bonds with control of stereochemistry. It also includes non-transition-metal coupling of secondary and tertiary boronic esters to electron-rich aromatics.
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Affiliation(s)
- Daniele Leonori
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK).
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8
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de Carné-Carnavalet B, Archambeau A, Meyer C, Cossy J, Folléas B, Brayer JL, Demoute JP. Efficient Synthesis of Substituted 3-Azabicyclo[3.1.0]hexan-2-ones from 2-Iodocyclopropanecarboxamides Using a Copper-Free Sonogashira Coupling. Chemistry 2012. [DOI: 10.1002/chem.201203153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Seidel G, Fürstner A. Suzuki reactions of extended scope: the ‘9-MeO-9-BBN variant’ as a complementary format for cross-coupling. Chem Commun (Camb) 2012; 48:2055-70. [DOI: 10.1039/c2cc17070a] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Gagnon A, Duplessis M, Fader L. Arylcyclopropanes: Properties, Synthesis and Use in Medicinal Chemistry. ORG PREP PROCED INT 2010. [DOI: 10.1080/00304940903507788] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Coleridge BM, Bello CS, Leitner A. General and user-friendly protocol for the synthesis of functionalized aryl- and heteroaryl-cyclopropanes by Negishi cross-coupling reactions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.05.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Rubin M, Rubina M, Gevorgyan V. Transition metal chemistry of cyclopropenes and cyclopropanes. Chem Rev 2007; 107:3117-79. [PMID: 17622181 DOI: 10.1021/cr050988l] [Citation(s) in RCA: 1061] [Impact Index Per Article: 62.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
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Ramı́rez J, Segarra AM, Fernández E. Metal promoted asymmetry in the 1,2-diboroethylarene synthesis: diboration versus dihydroboration. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.02.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nair V, Bera B, Kern ER. Synthesis and biological activities of 2-functionalized purine nucleosides. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2003; 22:115-27. [PMID: 12744599 DOI: 10.1081/ncn-120019498] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Novel purine nucleosides functionalized at the 2-position have been prepared using new applications of synthetic methodology. The target molecules were designed as potential inhibitors (as their monophosphates) of the enzyme, inosine monophosphate dehydrogenase (IMPDH), and representative inhibition data are presented. Antiviral data of the compounds are discussed.
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Affiliation(s)
- Vasu Nair
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, Georgia 30602, USA.
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Kotha S, Lahiri K, Kashinath D. Recent applications of the Suzuki–Miyaura cross-coupling reaction in organic synthesis. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01188-2] [Citation(s) in RCA: 1249] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Wallace DJ, Chen CY. Cyclopropylboronic acid: synthesis and Suzuki cross-coupling reactions. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01606-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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