Results 91 to 100 of about 5,721 (226)
Palladium-Catalyzed α-Arylation of Carboxylic Acids and Secondary Amides via a Traceless Protecting Strategy. [PDF]
, 2019 A novel traceless protecting strategy is presented for the long-standing challenge of conducting the palladium-catalyzed α-arylation of carboxylic aids and secondary amides with aryl halides.
Hartwig, John F, He, Zhi-Tao
core +1 more source
Macromolecular Materials and Engineering, EarlyView.Chewable softgels are a patient‐preferred alternative to conventional oral forms, offering pleasant taste, fast onset, and suitability for children or patients with swallowing difficulties. However, they present relevant challenges in their formulation: the shell must balance chewability, machinability, and stability, while the fill must mask the ...
Almudena Naharros‐Molinero +3 more
wiley +1 more source
Solvent free one pot synthesis of amidoalkyl naphthols over phosphotungstic acid
Journal of Saudi Chemical Society, 2017 Montmorillonite KSF clay was effectively modified by the encapsulation of phosphotungstic acid into the clay layers via sonication followed by incipient wet impregnation method.
Divya P. Narayanan +3 more
doaj +1 more source
Health Hazard Manual For Cutting Oils, Coolants, and Metalworking Fluids [PDF]
, 1991 [Excerpt] The metalworker can be exposed to cutting oils during application by two basic routes of entry: skin contact and inhalation. The higher risk jobs tend to be those with high cutting speeds, heavy oil flow, and continuous contact, which may ...
Brown, Nellie J
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Macromolecular Rapid Communications, EarlyView.The ability of photoacids to increase their acidity in response to light irradiation (excited state proton transfer, ESPT) makes them attractive building blocks for the design of stimuli‐responsive copolymers. In this contribution, we present highly biocompatible polyphotoacids based on poly(2‐oxazoline)s bearing 1‐hydroxypyrene units. Low cytotoxicity,
Leonid I. Kaberov +7 more
wiley +1 more source
Identification by Raman microscopy of anachronistic pigments on a purported Chagall nude: conservation consequences [PDF]
, 2016 A painting purported to be by the artist Marc Chagall has been examined using Raman microscopy to check on its proposed execution date of 1910. The analysis shows that, due the presence of phthalocyanine pigments, the painting cannot have been created ...
Clark, RJH
core +1 more source
Benzochromanone and Benzochromene Natural Products: Synthetic Strategies and Total Syntheses
The Chemical Record, EarlyView.This work outlines synthetic strategies for natural products with benzochromanone and benzochromene cores. Key achievements include total syntheses of xanthones, blennolide C, gonytolide C, and teretifolione B. Spirochromanone intermediates, benzyne–furan Diels–Alder reactions, and enzymatic resolution enabled efficient and enantioselective access to ...
Takuya Kumamoto
wiley +1 more source
Die UV-Absorptionsspektren einiger einfacher Chinoxalin-Derivate [PDF]
, 1962 Die UV-Absorptionsspektren 13 einfacher Chinoxalin-Derivate, bei denen die Substituenten keinen Anlaß zu tautomeren Wechselwirkungen geben, wurden in verschiedenen Lösungsmitteln gemessen und diskutiert.
Perkampus, H.H.
core +2 more sources
Coloration Technology, EarlyView.Abstract Plants and their extracts have been used for dyeing fabrics, skin and hair for thousands of years and have been experiencing a revival in the last years due to increasing health risks arising from oxidative hair dye precursors. We developed a novel two‐step method to dye keratin fibres based on in situ formed silver nanoparticles including a ...
Julia K. Hachmann +4 more
wiley +1 more source
, 2015 A sensitivity analysis in an observational study assesses the robustness of significant findings to unmeasured confounding. While sensitivity analyses in matched observational studies have been well addressed when there is a single outcome variable ...
Fogarty, Colin B., Small, Dylan S.
core +2 more sources