Search Results - "Bole, Leonie J."
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Enhancing Metalating Efficiency of the Sodium Amide NaTMP in Arene Borylation Applications
Published in Angewandte Chemie International Edition (27-06-2022)“…Though LiTMP (TMP=2,2′,6,6′‐tetramethylpiperidide) is a commonly used amide, surprisingly the heavier NaTMP has hardly been utilised. Here, by mixing NaTMP…”
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2
Ultrafast amidation of esters using lithium amides under aerobic ambient temperature conditions in sustainable solvents
Published in Chemical science (Cambridge) (07-07-2020)“…Lithium amides constitute one of the most commonly used classes of reagents in synthetic chemistry. However, despite having many applications, their use is…”
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3
Preparation of Polyfunctional Arylzinc Organometallics in Toluene by Halogen/Zinc Exchange Reactions
Published in Angewandte Chemie International Edition (09-09-2019)“…A wide range of polyfunctional diaryl‐ and diheteroarylzinc species were prepared in toluene within 10 min to 5 h through an I/Zn or Br/Zn exchange reaction…”
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4
Untangling the Complexity of Mixed Lithium/Magnesium Alkyl/Alkoxy Combinations Utilised in Bromine/Magnesium Exchange Reactions
Published in Angewandte Chemie International Edition (29-03-2021)“…While it is known that the addition of Group 1 alkoxides to s‐block organometallics can have an activating effect on reactivity, the exact nature of this…”
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5
Assessing Alkali‐Metal Effects in the Structures and Reactivity of Mixed‐Ligand Alkyl/Alkoxide Alkali‐Metal Magnesiates
Published in Chemistry : a European journal (21-02-2022)“…Advancing the understanding of using alkali‐metal alkoxides as additives to organomagnesium reagents in Mg−Br exchange reactions, a homologous series of…”
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Regioselective Bromine/Magnesium Exchange for the Selective Functionalization of Polyhalogenated Arenes and Heterocycles
Published in Angewandte Chemie International Edition (18-01-2021)“…Using the bimetallic combination sBu2Mg⋅2 LiOR (R=2‐ethylhexyl) in toluene enables efficient and regioselective Br/Mg exchanges with various dibromo‐arenes and…”
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Exploiting Coordination Effects for the Regioselective Zincation of Diazines Using TMPZnX⋅LiX (X=Cl, Br)
Published in Angewandte Chemie International Edition (04-10-2022)“…A new method for regioselective zincations of challenging N‐heterocyclic substrates such as pyrimidines and pyridazine was reported using bimetallic bases…”
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8
Boosting Conjugate Addition to Nitroolefins Using Lithium Tetraorganozincates: Synthetic Strategies and Structural Insights
Published in Chemistry : a European journal (17-07-2020)“…We report the first transition metal catalyst‐ and ligand‐free conjugate addition of lithium tetraorganozincates (R4ZnLi2) to nitroolefins. Displaying enhanced…”
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9
Ambient Moisture Accelerates Hydroamination Reactions of Vinylarenes with Alkali‐Metal Amides under Air
Published in Angewandte Chemie International Edition (19-10-2020)“…A straightforward alkali‐metal‐mediated hydroamination of styrenes using biorenewable 2‐methyltetrahydrofuran as a solvent is reported. Refuting the…”
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10
Sodium mediated deprotonative borylation of arenes using sterically demanding B(CH 2 SiMe 3 ) 3 : unlocking polybasic behaviour and competing lateral borane sodiation
Published in Chemical science (Cambridge) (21-06-2023)“…The deprotonative metalation of organic molecules has become a convenient route to prepare functionalised aromatic substrates. Amongst the different…”
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11
Progressing the Frustrated Lewis Pair Abilities of N‑Heterocyclic Carbene/GaR3 Combinations for Catalytic Hydroboration of Aldehydes and Ketones
Published in Inorganic chemistry (20-09-2021)“…Exploiting the steric incompatibility of the tris(alkyl)gallium GaR3 (R = CH2SiMe3) and the bulky N-heterocyclic carbene (NHC)…”
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12
Enhancing Metalating Efficiency of the Sodium Amide NaTMP in Arene Borylation Applications
Published in Angewandte Chemie (27-06-2022)“…Though LiTMP (TMP=2,2′,6,6′‐tetramethylpiperidide) is a commonly used amide, surprisingly the heavier NaTMP has hardly been utilised. Here, by mixing NaTMP…”
Get full text
Journal Article -
13
Untangling the Complexity of Mixed Lithium/Magnesium Alkyl/Alkoxy Combinations Utilised in Bromine/Magnesium Exchange Reactions
Published in Angewandte Chemie (29-03-2021)“…While it is known that the addition of Group 1 alkoxides to s‐block organometallics can have an activating effect on reactivity, the exact nature of this…”
Get full text
Journal Article -
14
Regioselektiver Brom/Magnesium‐Austausch für die selektive Funktionalisierung von polyhalogenierten Arenen und Heterozyklen
Published in Angewandte Chemie (18-01-2021)“…Die Verwendung der bimetallischen Kombination sBu2Mg⋅2 LiOR (R=2‐Ethylhexyl) in Toluol ermöglicht einen effizienten und regioselektiven Br/Mg‐Austausch mit…”
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15
Ausnutzung von Koordinationseffekten für die Regioselektive Zinkierung von Diazinen mit TMPZnX⋅LiX (X=Cl, Br)
Published in Angewandte Chemie (04-10-2022)“…Eine neue Methode für regioselektive Zinkierung von anspruchsvollen N‐heterozyklischen Substraten wie Pyrimidinen und Pyridazin wurde unter Verwendung der…”
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16
Ambient Moisture Accelerates Hydroamination Reactions of Vinylarenes with Alkali‐Metal Amides under Air
Published in Angewandte Chemie (19-10-2020)“…A straightforward alkali‐metal‐mediated hydroamination of styrenes using biorenewable 2‐methyltetrahydrofuran as a solvent is reported. Refuting the…”
Get full text
Journal Article -
17
Herstellung von polyfunktionellen Arylzinkreagenzien in Toluol mittels Halogen/Zink‐Austauschreaktionen
Published in Angewandte Chemie (09-09-2019)“…Unter Verwendung von bimetallischen Reagenzien des Typs R′2Zn⋅2 LiOR (R′=sBu, tBu, pTol) wurde innerhalb von 10 min bis 5 h in Toluol eine breite Menge an…”
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18
Activation of polar organometallic reagents with alkali-metal alkoxides
Published in Nature Synthesis (01-03-2022)Get full text
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20
Sodium mediated deprotonative borylation of arenes using sterically demanding B(CHSiMe): unlocking polybasic behaviour and competing lateral borane sodiation
Published in Chemical science (Cambridge) (21-06-2023)“…The deprotonative metalation of organic molecules has become a convenient route to prepare functionalised aromatic substrates. Amongst the different…”
Get full text
Journal Article