1 H NMR and Elemental analysis, and the results indicated that the structures of the Brønsted-Lewis acidic ionic liquids synthesized in this work were corresponding to those of the target products.

NMR spectra were recorded on standard Bruker 300WB spectrometer ... After the completion the reaction (monitored by TLC: eluent: n-hexane/ethyl acetate: 3/1), cold water was added and the precipitated ...

1 H NMR spectra were recorded on Bruker 400 MHz spectrometer ... Stir at room temperature for 1 h, and detect the reaction by TLC. The developing agent is ethyl acetate: methanol = 1:1–4:1 (v/v).

Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

The effect of saccharin on the microbiome has received much attention, but its impact on pathogenic bacterial species is less ...

Spectrum is offering a streaming-only subscription to the Dodgers’ television channel for $29.99 per month or $199.99 per year, the company announced Monday. The service will be in place when ...

Credit: SpaceNews/Jeff Foust WASHINGTON — The new head of the Federal Communications Commission’s space division says his focus will be licensing reform and spectrum access. In a speech at the ...

Ethyl acetate is used as a solvent for varnishes, lacquers, dry cleaning, stains, fats and nitrocellulose. It is released during the production of artificial silk and leather, and during the ...

Hemp gummies and cannabidiol (CBD) gummies are edible CBD products that may promote sleep, calm, and pain relief. While hemp seed oil and CBD come from the same plant, they have different chemical ...

Aspen Green’s cooling cream is made with arnica extract and organic menthol, which, along with full-spectrum CBD, help relieve muscle and other pain. It receives rave reviews, including from our ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Polyelectrolyte multilayer (PEM) membranes are highly promising for the removal of ...