14297-39-3Relevant articles and documents
Meta selectivity in the Friedel-Crafts reaction induced by a faujasite-type zeolite
Van Herwijnen,Brinker
, p. 2874 - 2876 (2001)
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Method for preparing coupling arene from aryl halide by ionizing, discharging and coupling
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Paragraph 0029-0043; 0049-0053, (2017/09/26)
The invention discloses a method for preparing coupling arene from aryl halide by ionizing, discharging and coupling. The method comprises the following steps: placing a magnetic stirrer into a three-necked flask and adding aryl halide occupying 1/2 flask, thereby finishing the assembling of an ionizing reaction device; placing the ionizing reaction device into an oil bath pan, introducing inert gas into a reaction system, removing air from the reaction system, starting stirring and heating in the oil bath pan to make aryl halide flow back, and meanwhile, introducing water into a ball-shaped condensation pipe for cooling; starting a high-voltage power generator, and introducing powerful arc generated into the three-necked flask through a metal electrode, thereby ionizing and decomposing aryl halide steam and generating a coupling arene compound; stopping ionizing and heating when solids are separated or the backflow of aryl halide is slowed in a round-bottom flask, and then ending the reaction; recrystallizing or performing reduced pressure distillation purification on the coupling arene product in the flask, thereby acquiring the coupling arene product. The method disclosed by the invention has the advantages of low cost, high efficiency, environmental protection, and the like.
Friedel-crafts benzylation of activated and deactivated arenes
Schaefer, Gabriel,Bode, Jeffrey W.
supporting information; experimental part, p. 10913 - 10916 (2012/01/02)
NO going back makes possible facile Friedel-Crafts benzylations with moderate reaction temperatures, simple reaction workups, and improved substrate scope for the formation of synthetically important diarylmethanes (see scheme). Upon complexation with BF3?OEt2, hydroxamates serve as reversible leaving groups that stabilize highly reactive carbocations. Even deactivated arenes and electron-deficient benzylhydroxamates react cleanly under these conditions.