New computational evidence reiterates that alkyl groups are inductively electron-withdrawing and that hyperconjugation ...

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The use of quaternary ammonium salts along with longer alkyl chains increases the yield of the Biginelli reaction; however, bromide ammonium salts are less active than the chloride ones.

The Specialties segment provides bromine-based specialty chemicals, including elemental bromine, alkyl and inorganic bromides, brominated powdered activated carbon, and other bromine fine chemicals; ...

But Mark Elliott, an organic chemist at Cardiff University, asserts that chemists have for years been incorrectly teaching that concept for alkyl groups. Alkyl groups have an electron-donating ...

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Activating agents enable the efficient preparation of organozinc complexes from zinc metal and organohalides, but their mechanisms had been obscured by the heterogeneous nature of these systems.

Deprotection of the alkyl groups on the phosphonic acid ester completed the synthesis. The sbPA membrane remained stable, showing no dissolution after immersion in water at 60 °C for three hours. It ...

Contemporary polymer network materials, such as hydrogels and elastomers, require not only enhanced mechanical properties but also adaptability during or after use. Polymer mechanochemistry, which ...