Synthesis of <i>o</i>-(Dimethylamino)aryl Ketones, Acridones, Acridinium Salts, and 1<i>H</i>-Indazoles by the Reaction of Hydrazones and Arynes
作者:Anton V. Dubrovskiy、Richard C. Larock
DOI:10.1021/jo302378w
日期:2012.12.21
A novel, efficient route to biologically and pharmaceutically important o-(dimethylamino)aryl ketones, acridones, acridinium salts, and 1H-indazoles has been developed starting from readily available hydrazones of aldehydes and o-(trimethylsilyl)aryl triflates. The reaction proceeds through arynes under mild conditions, tolerates a wide range of functional groups, and provides the final products in
Targeting Valuable Chemical Commodities: Hydrazine‐mediated Diels‐Alder Aromatization of Biobased Furfurals
作者:Răzvan C. Cioc、Marc Crockatt、Jan C. van der Waal、Pieter C. A. Bruijnincx
DOI:10.1002/cssc.202201139
日期:2022.9.20
hydrazone enables the use of furfurals in the production of renewable oxygenated aromatics via a redox-neutral Diels-Alder-based route. In combination with acrylic acid as dienophile, a tandem cycloaddition/decarboxylation/dehydration takes places in remarkably mild conditions en route towards valuable aromaticaldehydes.