Results 121 to 130 of about 358,569 (255)

A Modular Synthesis of Isoindole/Indolizine Hybrids via the 1,3‐Dipolar Cycloaddition of Pyridine‐Based Mesoionics with Benzyne

European Journal of Organic Chemistry, EarlyView.
An approach to prepare pyrido[2,1‐a]isoindoles via the cycloaddition of pyridine‐based 1,3‐dipoles and benzyne is described, offering modular access to a range of substituted products by systematic tuning of the dipole. A modular strategy for the synthesis of fused indolizine/isoindole hybrids, pyrido[2,1‐α]isoindoles, via cycloaddition of pyridine ...
Samira Taghizadeh Nodehi, Mohammad Ghanbari, Bruce A. Arndtsen   +2 more
wiley   +1 more source

Exploration of Vitamin B6-Based Redox-Active Pyridinium Salts towards the Application in Aqueous Organic Flow Batteries

We have examined the utility of pyridoxal hydrochloride, a vitamin B6 vitamer and a biobased feedstock, as a starting point towards organic redox flow battery materials.
Imre, Papai, Prachi, Verma, Arsalan, Hashemi, Jenna, Hannonen, Andrea, Hamza, Petri, Pihko, Kari, Laasonen, Gabriel , Gonzalez, Vsevolod, Peshkov, Anton, Bannykh, Pekka, Peljo, Anton , Nechaev   +11 more
core   +1 more source

New poly(ionic liquid)s based on poly(azomethine-pyridinium) salts and its use as heterogeneous catalysts for CO2 conversion [PDF]

, 2018
A fast and simple synthetic route towards a new family of poly(ionic liquids) based on aromatic crosslinked poly(azomethine-pyridinium) salts is described.
Verde-Sesto, Ester, Mantione, Daniele, Mecerreyes Molero, David, Verde Sesto, Ester, Iglesias, Marta, Maya, Eva M.   +5 more
core   +1 more source

Antibacterial Hydrogel Dressing With Ca2+‐Dependent Hyaluronidase Responsiveness for Accelerating Wound Healing via On‐Demand Release of AIE Photosensitizers

Exploration, EarlyView.
This study innovates a Ca2+‐responsive hydrogel dressing that releases AIE photosensitizers on‐demand. Low Ca2+ enhances bacterial hyaluronidase (HAase) activity, degrading hyaluronic acid dressing to trigger antibacterial ROS release, while high Ca2+ inhibits HAase, preventing overdosing.
Rongwei Cui, Hao Yang, Miaomiao Kang, Zhijun Zhang, Weilin Xu, Yang Jiang, Lizhou Xu, Xiao‐Yong Zhan, Luhan Zhang, Yunsheng Xu, Dong Wang, Ben Zhong Tang, Danyang Li   +12 more
wiley   +1 more source

A Synthetic Route to Quaternary Pyridinium Salt-Functionalized Silsesquioxanes

International Journal of Polymer Science, 2012
A synthetic route to potentially biocidal silsesquioxanes functionalized by quaternary pyridinium functionalities has been developed. N-Alkylation reactions of the precursor compounds 4-(2-(trimethoxysilyl)ethyl)-pyridine (5) and 4-(2-trichloro ...
Nataliya Kostenko, Jochen Gottfriedsen, Liane Hilfert, Frank T. Edelmann   +3 more
doaj   +1 more source

Ionic liquid characteristics of 1-alkyl-n-cyanopyridinium and 1-alkyl-n-(trifluoromethyl) pyridinium salts

, 2008
1-Alkyl-n-cyanopyridinium and 1-alkyl-n-(trifluoromethyl) pyridinium salts have been synthesised and characterised in order to compare the effects of different electron-withdrawing functional groups on their ability to form ionic liquids. The presence of
Reichert, W.M., Mullan, Claire, Teat, S.J., Reichert, W. Matthew, Nieuwenhuyzen, Mark, Teat, Simon J., Mullan, Claire L., Holbrey, John; id_orcid, Hardacre, Christopher; id_orcid, Seddon, Kenneth R., Holbrey, John D., Seddon, Kenneth, Hardacre, Christopher   +12 more
core   +1 more source

Catechol‐Containing Poly(2‐isopropyl‐2‐oxazoline): Synthesis and Thermoresponsive Behavior in Aqueous Salt Solutions

Macromolecular Rapid Communications, EarlyView.
Polymers carrying catechol groups are interesting mussel‐inspired materials for wet adhesion applications or metal ion complexation for wastewater treatment. Here, catechol‐containing poly(2‐isopropyl‐2‐oxazoline)s were synthesized via microwave‐assisted cationic (co)polymerization and examined with regard to their thermoresponsive LCST behavior in ...
Niclas Madaj, Nils Lüdecke, Sergio Kogikoski Jr., Ilko Bald, Helmut Schlaad   +4 more
wiley   +1 more source

A Simple Halide-to-Anion Exchange Method for Heteroaromatic Salts and Ionic Liquids

Molecules, 2012
A broad and simple method permitted halide ions in quaternary heteroaromatic and ammonium salts to be exchanged for a variety of anions using an anion exchange resin (A− form) in non-aqueous media.
Neus Mesquida, Anna Ibáñez, Immaculada Dinarès, Ermitas Alcalde   +3 more
doaj   +1 more source

Sustainable Metal Recovery From E‐Waste: Exploring Greener Leachates in Hydrometallurgical Processes

MetalMat, EarlyView.
Recycling of electronic waste to synthesize valuable metals using green leachate. ABSTRACT The accumulation of electronic waste (e‐waste) poses environmental hazards and leads to the loss of valuable metals such as gold, silver, copper, and rare earth elements.
Shassatha Paul Saikat, Nazim Uddin, Md. Kawsar, Samina Ahmed, Md. Sahadat Hossain   +4 more
wiley   +1 more source

HPLC Analysis of Aliphatic Sulfonate Surfactants using Ion-Pair Detection

Molecules, 2005
A method was developed for the analysis of a number of surfactants which contained no UV-chromophores, using RP-HPLC with Indirect Photometric Detection, IPD.
P. Carlsen, O. Rist, D. Camporese, M. Zahrobsky   +3 more
doaj   +1 more source