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The Scholl reaction is a coupling reaction between two arene compounds with the aid of a Lewis acid and a protic acid. [1] [2] It is named after its discoverer, Roland Scholl, a Swiss chemist. The Scholl reaction. In 1910 Scholl reported the synthesis of a quinone [3] and of perylene from naphthalene [4] both with aluminum chloride.
Chain reaction in chemistry and physics is a process that produces products capable of initiating subsequent processes of a similar nature. It is a self-sustaining sequence in which the resulting products continue to propagate further reactions. [1]
In organic chemistry, annulation (from Latin anellus 'little ring'; occasionally annelation) is a chemical reaction in which a new ring is constructed on a molecule. [ 1 ] Examples are the Robinson annulation , Danheiser annulation and certain cycloadditions .
In chemistry, a chemical oscillator is a complex mixture of reacting chemical compounds in which the concentration of one or more components exhibits periodic changes. They are a class of reactions that serve as an example of non-equilibrium thermodynamics with far-from-equilibrium behavior.
Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...
In chemistry, acylation is a broad class of chemical reactions in which an acyl group (R−C=O) is added to a substrate. The compound providing the acyl group is called the acylating agent . The substrate to be acylated and the product include the following:
HRAs, QSEHRAs, and ICHRAS. Understanding the differences in eligible expenses between HRAs, QSEHRAs, and ICHRAs can help businesses determine which type of plan best fits their needs.
Former President Bill Clinton has been discharged from the hospital after being treated for the flu, a spokesperson said on Tuesday. Clinton, 78, was admitted to the hospital in Washington on ...