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Halogenation of benzene where X is the halogen, catalyst represents the catalyst (if needed) and HX represents the protonated base. A few types of aromatic compounds, such as phenol, will react without a catalyst, but for typical benzene derivatives with less reactive substrates, a Lewis acid is required as a catalyst.
In organic chemistry, free-radical halogenation is a type of halogenation. This chemical reaction is typical of alkanes and alkyl-substituted aromatics under application of UV light. The reaction is used for the industrial synthesis of chloroform (CHCl 3), dichloromethane (CH 2 Cl 2), and hexachlorobutadiene. It proceeds by a free-radical chain ...
Dihydro-resveratrol is a natural phenol with a bibenzyl structure found in wine. [1] It is also a metabolite of trans-resveratrol formed in the intestine by the hydrogenation of the double bond by microflora. [2] Combretastatin and combretastatin B-1 are two dihydrostilbenoids found in Combretum afrum, an African tree.
Different from ice coffee, a cold brew is created by steeping coffee grounds in either room-temperature water or cold water for several hours and "can be made in cold brew makers fitted with a ...
The newly opened concept in San Diego is called the Live Más Café, featuring a beverage-centric menu that includes milkshakes, coffees, fruity iced drinks and a take on a dirty soda trend with ...
Caffenol is a photographic alternative process whereby phenols, sodium carbonate and optionally vitamin C are used in aqueous solution as a film and print photographic developer. [1] [2] Other basic (as opposed to acidic) chemicals can be used in place of sodium carbonate; however, sodium carbonate is the most common. [1]
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Introducing the 18th class of the California Hall of Fame! Since 2006, @CAMuseum has honored 166 Californians for their achievement in the arts, business and labor, food, literature, music, public ...