Publications associées à Liaison banane

Synthesis, isolation and application of a sila-ketenyl anion

Ynolates or ketenyl anions, [RCCO]-, are negatively charged reactive intermediates, which can be generated in situ and used for divergent chemical transformations. Ynolates can react either at the oxygen or carbon centres or across the C-C triple bond, mak ...

London2023

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Marc Hamilton Folkmann Garner, Jacob Terence Blaskovits

Molecules where the first excited singlet state is lower in energy than the first excited triplet state have the potential to revolutionize OLEDs. This inverted singlet-triplet gap violates Hund's rule and currently there are only a few molecules which are ...

ROYAL SOC CHEMISTRY2023

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Marc Hamilton Folkmann Garner, Jacob Terence Blaskovits

ROYAL SOC CHEMISTRY2023

Tailoring the Hybridization Density of DNA Biosensors through Tunable Surface Functionalization

Sandrine Gerber, Mounir Driss Mensi, Perrine Agnes Edith Robin, Pauline Skigin, Lucas Mayoraz

DNA biosensors are promising candidates for the development of point-of-care diagnosis methods. They can be inserted in microfluidic platforms, are often non-expensive, and can be produced for a variety of targeted analytes. However, their development face ...

2023

Synthesis of propargyl silanes from terminal alkynes via a migratory Sonogashira reaction

Jérôme Waser, Mikus Purins, Lucas Antoine Théo Eichenberger

Herein we report a mild synthesis of propargyl silanes from terminal alkynes. We exploit a bromonaphthyl-substituted silane as a silylmethyl electrophile surrogate, which participates in a Sonogashira reaction after an aryl-to-alkyl Pd-migration. Twenty-se ...

2023

Copper-Catalyzed Alkynylation of Hydrazides: An Easy Access to Functionalized Azadipeptides

Jérôme Waser, Eliott Hugo Joran Le Du, Julien Aymeric Borrel

We report a copper-catalyzed alkynylation of azadipeptides using ethynylbenziodoxolone (EBX) reagents. Nonsymmetrical ynehydrazides could be obtained in 25–97% yield using azaglycine derivatives as nucleophiles. The transformation is compatible with most f ...

2022

Helical versus linear Jahn-Teller distortions in allene and spiropentadiene radical cations

Rubén Laplaza Solanas, Marc Hamilton Folkmann Garner

The allene radical cation can be stabilized both by Jahn-Teller distortion of the bond lengths and by torsion of the end-groups. However, only the latter happens and the allene radical cation relaxes into a twisted D-2 symmetry structure with equal double- ...

ROYAL SOC CHEMISTRY2022

Validation of bond models for the crack width estimation based on detailed measurements

Aurelio Muttoni, Enrique Corres Sojo

Crack formation and development in reinforced concrete structures is a complex mechanism affected by a large number of factors. Typically, the estimation of the crack width as a function of the reinforce-ment stress state is based on simplified assumptions ...

2022

Alkynyl triazenes enable divergent syntheses of 2-pyrones

Kay Severin, Nicolai Cramer, Carl Thomas Bormann, Jin Fay Tan

The 2-pyrone motif occurs frequently in bioactive natural products and is appreciated as synthetic intermediates. However, only few methods allow for diversifying functional group modifications on this relevant heterocycle. The distinct properties of 1-alk ...

2021

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Liaison banane

Novel Alkynylation Methods through the Combination of Hypervalent Iodine Reagents and Alkynyl-trifluoroborate Salts

Synthesis, isolation and application of a sila-ketenyl anion

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Tailoring the Hybridization Density of DNA Biosensors through Tunable Surface Functionalization

Synthesis of propargyl silanes from terminal alkynes via a migratory Sonogashira reaction

Copper-Catalyzed Alkynylation of Hydrazides: An Easy Access to Functionalized Azadipeptides

Helical versus linear Jahn-Teller distortions in allene and spiropentadiene radical cations

Validation of bond models for the crack width estimation based on detailed measurements

Alkynyl triazenes enable divergent syntheses of 2-pyrones

Graph Chatbot

Chattez avec Graph Search

Novel Alkynylation Methods through the Combination of Hypervalent Iodine Reagents and Alkynyl-trifluoroborate Salts

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps

Synthesis of propargyl silanes from terminal alkynes via a migratory Sonogashira reaction

Synthesis, isolation and application of a sila-ketenyl anion

Helical versus linear Jahn-Teller distortions in allene and spiropentadiene radical cations

Alkynyl triazenes enable divergent syntheses of 2-pyrones

Tailoring the Hybridization Density of DNA Biosensors through Tunable Surface Functionalization

Copper-Catalyzed Alkynylation of Hydrazides: An Easy Access to Functionalized Azadipeptides

Validation of bond models for the crack width estimation based on detailed measurements