Publications associées à Iminium

Unravelling the structures of sodiated beta-cyclodextrin and its fragments

Thomas Rizzo, Robert Paul Pellegrinelli, Eduardo Carrascosa Casado, Ali H Abikhodr

We present cryogenic infrared spectra of sodiated beta-cyclodextrin beta-CD + Na, a common cyclic oligosaccharide, and its main dissociation products upon collision-induced dissociation (CID). We characterize the parent ions using high-resolution ion ...

ROYAL SOC CHEMISTRY2021

Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles

Paul Joseph Dyson, Zhaofu Fei, Xinjiang Cui, Matthias Beller

Core-shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly-ionic liquid (PIL) with a cobalt(II) chloride anion. T ...

2020

Kinetics and mechanisms of nitrate and ammonium formation during ozonation of dissolved organic nitrogen

Urs von Gunten, Glen Andrew De Vera

Dissolved organic nitrogen (DON) is an emerging concern in oxidative water treatment because it exerts oxidant demand and may form nitrogenous oxidation/disinfection by-products. In this study, we investigated the reactions of ozone with DON with a special ...

Elsevier2017

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

Jérôme Waser, Johannes Preindl, Shyamal Chakrabarty

Many abundant and highly bioactive natural alkaloids contain an indolizidine skeleton. A simple, high yielding method to synthesize this scaffold from N-heterocycles was developed. A wide range of pyridines, quinolines and isoquinolines reacted with donor- ...

2017

Chemical Distribution of Multiple Cation (Rb+, Cs+, MA(+), and FA(+)) Perovskite Materials by Photoelectron Spectroscopy

Ulf Anders Hagfeldt, Michael Saliba, Juan-Pablo Correa-Baena, Silver Hamill Turren Cruz

Lead-based mixed perovskite materials have emerged in the last couple of years as promising photovoltaic materials. Recently, it was shown that improved material stability can be achieved by incorporating small amounts of inorganic cations (Cs+ and Rb+), p ...

American Chemical Society2017

An Enantioselective Total Synthesis of (−)-Isoschizogamine

Qian Wang, Jieping Zhu, Xu Bao, Zhengren Xu

A concise enantioselective total synthesis of (¢)- isoschizogamine, a complex bridged polycyclic monoterpene indole alkaloid, was accomplished. N-Alkylation of an enantio- enriched imine with an alkyl iodide afforded an iminium salt, which, upon heating by ...

Wiley-Blackwell2015

A four-component organogel based on orthogonal chemical interactions

Kay Severin, Kurt Schenk, Nicolas Luisier

A thermoresponsive organogel was obtained by orthogonal assembly of four compounds using dynamic covalent boronate ester and imine bonds, as well as dative boron-nitrogen bonds. It is shown that the gel state can be disrupted or reinforced by chemicals whi ...

Royal Society of Chemistry2014

Synthesis of 4-amino-1,2,3,4-tetrahydropyridine derivatives by intramolecular nucleophilic addition of tertiary enamides to in-situ generated imines

Jieping Zhu, Shuo Tong, Xu Yang

The reactivity of stable tertiary enamides in nucleophilic addition reaction with various in-situ generated imines was explored. Under very mild conditions, formyl-bearing tertiary enamides reacted with both aromatic and aliphatic amines to form imine inte ...

Elsevier2012

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Iminium

Unravelling the structures of sodiated beta-cyclodextrin and its fragments

Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles

Kinetics and mechanisms of nitrate and ammonium formation during ozonation of dissolved organic nitrogen

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

Tuning the stacking behaviour of a 2D covalent organic framework through non-covalent interactions

Chemical Distribution of Multiple Cation (Rb+, Cs+, MA(+), and FA(+)) Perovskite Materials by Photoelectron Spectroscopy

Crystalline and Soft Materials Based on Dative Boron-Nitrogen Bonds

An Enantioselective Total Synthesis of (−)-Isoschizogamine

A four-component organogel based on orthogonal chemical interactions

Synthesis of 4-amino-1,2,3,4-tetrahydropyridine derivatives by intramolecular nucleophilic addition of tertiary enamides to in-situ generated imines

Graph Chatbot

Chattez avec Graph Search

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles

Tuning the stacking behaviour of a 2D covalent organic framework through non-covalent interactions

Kinetics and mechanisms of nitrate and ammonium formation during ozonation of dissolved organic nitrogen

An Enantioselective Total Synthesis of (−)-Isoschizogamine

Unravelling the structures of sodiated beta-cyclodextrin and its fragments

A four-component organogel based on orthogonal chemical interactions

Chemical Distribution of Multiple Cation (Rb+, Cs+, MA(+), and FA(+)) Perovskite Materials by Photoelectron Spectroscopy

Crystalline and Soft Materials Based on Dative Boron-Nitrogen Bonds

Synthesis of 4-amino-1,2,3,4-tetrahydropyridine derivatives by intramolecular nucleophilic addition of tertiary enamides to in-situ generated imines