Publications associées à Thiophène

Two-Carbon Ring Expansion of Cyclobutanols to Cyclohexenones Enabled by Indole Radical Cation Intermediate: Development and Application to a Total Synthesis of Uleine

Qian Wang, Jieping Zhu, Alexandre Julien Florent Leclair

A single-electron transfer (SET) oxidation of indole or benzo[b]thiophene to a radical cation reverses the intrinsic polarity of these pi-excessive bicyclic heteroarenes. Here we report an oxidative two-carbon homologation of cyclobutanols to cyclohexenone ...

AMER CHEMICAL SOC2022

Development of remote C-H bond functionalization of redox-active alcohol derivatives and oxidative transformations under photoredox catalysis

Alexandre Julien Florent Leclair

The development of radical-based remote C(sp3)-H functionalizations of redox-active alcohol derivatives, oxidative cycloaddition and rearrangement transformations under visible light photocatalysis constitute the basis of this thesis.The first chapter desc ...

EPFL2021

Structural and Photophysical Templating of Conjugated Polyelectrolytes with Single-Stranded DNA

Ursula Röthlisberger, Polydefkis Diamantis, Natalie Renuka Banerji

A promising approach to influence and control the photophysical properties of conjugated polymers is directing their molecular conformation by templating. We explore here the templating effect of single-stranded DNA oligomers (ssDNAs) on cationic polythiop ...

AMER CHEMICAL SOC2020

Palladium-Catalyzed Enantioselective Cacchi Reaction: Asymmetric Synthesis of Axially Chiral 2,3-Disubstituted Indoles

Qian Wang, Jieping Zhu, Hua Wu, Yuping He

We report herein the first examples of a palladiumcatalyzed enantioselective Cacchi reaction for the synthesis of indoles bearing a chiral C2-aryl axis. In the presence of a catalytic amount of Pd(OAc)2 and (R,R)-QuinoxP* ligand, reaction of N-aryl(alkyl)s ...

2020

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Giulia Grancini, Inés Garcia Benito, Javier Urieta Mora

A flexible, saddle-like, π-conjugated skeleton composed of four fused thiophene rings forming a cyclooctatetrathiophene (CoTh) with four triphenylamines (CoTh-TTPA) is presented as a hole-transporting material (HTM) for perovskite solar cells. The new HTM ...

2019

Design of cyclopentadithiophene-based small organic molecules as hole selective layers for perovskite solar cells

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Laura Calio

Thiophene-based p-type molecules are being extensively investigated and employed in optoelectronic devices due to their intriguing semiconducting properties. Herein, we report the synthesis and characterization of a 4H-cyclopenta[1,2-b: 5,4-b']dithiophene- ...

ROYAL SOC CHEMISTRY2018

Charge transporting material for optoelectronic and/or photoelectrochemical devices

Michael Graetzel, Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Paul Gratia, Inés Garcia Benito

The present invention relates to an optoelectronic and/or photoelectrochemical device comprising at least one organic-inorganic perovskite as sensitizer and at least one compound of formula (I) comprising one benzotrithiophene core Q, wherein each thiophen ...

2017

Electric-Field-Driven Direct Desulfurization

Klaus Kern, Hagen Klauk, Uta Schlickum, Peter Wahl, Ivan Pentegov, Verena Katharina Schendel

The ability to elucidate the elementary steps of a chemical reaction at the atomic scale is important for the detailed understanding of the processes involved, which is key to uncover avenues for improved reaction paths. Here, we track the chemical pathway ...

Amer Chemical Soc2017

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Thiophène

Two-Carbon Ring Expansion of Cyclobutanols to Cyclohexenones Enabled by Indole Radical Cation Intermediate: Development and Application to a Total Synthesis of Uleine

Development of remote C-H bond functionalization of redox-active alcohol derivatives and oxidative transformations under photoredox catalysis

Structural and Photophysical Templating of Conjugated Polyelectrolytes with Single-Stranded DNA

Fused N‐Heterocycles with Contiguous Stereogenic Centers Accessed by an Asymmetric Catalytic Cascade Reaction of Tertiary Enamides

Palladium-Catalyzed Enantioselective Cacchi Reaction: Asymmetric Synthesis of Axially Chiral 2,3-Disubstituted Indoles

Synthetic Studies toward Amanita Phalloides Toxins

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Design of cyclopentadithiophene-based small organic molecules as hole selective layers for perovskite solar cells

Charge transporting material for optoelectronic and/or photoelectrochemical devices

Electric-Field-Driven Direct Desulfurization

Graph Chatbot

Chattez avec Graph Search

Structural and Photophysical Templating of Conjugated Polyelectrolytes with Single-Stranded DNA

Development of remote C-H bond functionalization of redox-active alcohol derivatives and oxidative transformations under photoredox catalysis

Fused N‐Heterocycles with Contiguous Stereogenic Centers Accessed by an Asymmetric Catalytic Cascade Reaction of Tertiary Enamides

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Design of cyclopentadithiophene-based small organic molecules as hole selective layers for perovskite solar cells

Palladium-Catalyzed Enantioselective Cacchi Reaction: Asymmetric Synthesis of Axially Chiral 2,3-Disubstituted Indoles

Synthetic Studies toward Amanita Phalloides Toxins

Charge transporting material for optoelectronic and/or photoelectrochemical devices

Electric-Field-Driven Direct Desulfurization

Two-Carbon Ring Expansion of Cyclobutanols to Cyclohexenones Enabled by Indole Radical Cation Intermediate: Development and Application to a Total Synthesis of Uleine