Results 21 to 30 of about 3,211,194 (278)

Catalytic Arene-forming Aldol Condensation: Stereoselective Synthesis of Rotationally Restricted Aromatic Compounds

open access: yesCHIMIA, 2017
By taking inspiration from the fascinating biosynthetic machinery that creates aromatic polyketides, our group investigates analogous reactions catalyzed by small molecules. We are particularly captivated by the prospects of intramolecular aldol
Vincent C. Fäseke   +4 more
doaj   +1 more source

Exploring cocoa bean fermentation mechanisms by kinetic modelling

open access: yesRoyal Society Open Science, 2022
Compared with other fermentation processes in food industry, cocoa bean fermentation is uncontrolled and not standardized. A detailed mechanistic understanding can therefore be relevant for cocoa bean quality control.
Mauricio Moreno-Zambrano   +2 more
doaj   +1 more source

Assessing the Effect of Stabilization and Carbonization Temperatures on Electrochemical Performance of Electrospun Carbon Nanofibers from Polyacrylonitrile

open access: yesAdvanced Energy & Sustainability Research, 2023
Supercapacitors (SCs) are considered a promising alternative to batteries to power up portable and wearable devices. Among different categories of materials for SCs, carbon nanofibers (CNFs) are particularly appealing for their electrochemical ...
Felix Boll   +5 more
doaj   +1 more source

Research Communication: An International Tree-Ring Isotope Data Bank—A Proposed Repository For Tree-Ring Isotopic Data

open access: yes, 2009
The International Tree-Ring Data Bank (ITRDB) is an invaluable resource, providing access to a massive and growing cache of tree-ring data. Oxygen, carbon, nitrogen and hydrogen isotope treering studies, which have provided valuable climatic and ...
Csank, Adam Z.
core   +5 more sources

An air-stable bisboron complex: a practical bidentate Lewis acid catalyst

open access: yesBeilstein Journal of Organic Chemistry, 2018
We report an air-stable bisboron complex as an efficient catalyst for the inverse electron-demand Diels–Alder (IEDDA) reaction of 1,2-diazine as well as 1,2,4,5-tetrazine.
Longcheng Hong   +7 more
doaj   +1 more source

A Farewell Symposium to the Retiring Professors Catherine E. Housecroft and Edwin C. Constable

open access: yesCHIMIA, 2023
On the 5th of May 2023, the Department of Chemistry at the University of Basel celebrated the careers of their long-term colleagues Catherine E. Housecroft and Edwin C. Constable with a farewell symposium. Seven former coworkers and current colleagues of
Murielle F. Delley, Oliver S. Wenger
doaj   +1 more source

Ring-locking enables selective anhydrosugar synthesis from carbohydrate pyrolysis

open access: yes, 2016
The selective production of platform chemicals from thermal conversion of biomass-derived carbohydrates is challenging. As precursors to natural products and drug molecules, anhydrosugars are difficult to synthesize from simple carbohydrates in large ...
Pradhan, Sivaram   +6 more
core   +1 more source

NeoPHOX – a structurally tunable ligand system for asymmetric catalysis

open access: yesBeilstein Journal of Organic Chemistry, 2016
A synthesis of new NeoPHOX ligands derived from serine or threonine has been developed. The central intermediate is a NeoPHOX derivative bearing a methoxycarbonyl group at the stereogenic center next to the oxazoline N atom.
Jaroslav Padevět   +3 more
doaj   +1 more source

Tree-Ring Dating and Archaeology in the American Southwest

open access: yes, 1976
The relationship between archaeology and tree-ring dating, or dendrochronology, is reviewed. Until the past decade, the applications of tree-ring dating to archaeological problems had not been thoroughly exploited.
Robinson, William J.
core   +4 more sources

On-Line Monitoring of Biofilm Accumulation on Graphite-Polypropylene Electrode Material Using a Heat Transfer Sensor

open access: yesBiosensors, 2021
Biofilms growing on electrodes are the heart piece of bioelectrochemical systems (BES). Moreover, the biofilm morphology is key for the efficient performance of BES and must be monitored and controlled for a stable operation.
Andreas Netsch   +2 more
doaj   +1 more source

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