2-(naphthalen-1-yl)anilines and p-benzoquinones through copper (II)-mediated radicalcyclisation. This unusual cyclisationreaction resulted in the robust and efficient syntheses of iptycenes with an acridinone motif. These iptycenes can be further transformed to planar acridinone heterocyclics through the Diels–Alder reaction.
Direct Transformation of Esters into Arenes with 1,5-Bifunctional Organomagnesium Reagents
作者:Achim Link、Christian Fischer、Christof Sparr
DOI:10.1002/anie.201505414
日期:2015.10.5
A directtransformation of carboxylic acid esters into arenes with 1,5‐bifunctional organomagnesiumreagents is described. This efficient and practical method enables the one‐step defunctionalization of various carboxylic acid esters to prepare benzene, anthracene, tetracene, and pentacene derivatives. A double nucleophilic addition of the 1,5‐organodimagnesium reagent to the ester is followed by an