Synthesis of Bromo-Substituted 4-Hydroxy[2.2]paracyclophanes and [2.2]Paracyclophane-4,7-quinones as Versatile Chiral Building Blocksстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 марта 2017 г.
Аннотация:Approaches to a number of bromo-substituted derivatives of 4-hydroxy[2.2]paracyclophane, including the regioselective mono- and dibromination of this phenol, were investigated. The applicability of the regioisomeric monobromo-substituted phenols for the synthesis of substituted [2.2]paracyclophane-4,7-quinones through a one-pot diazonium coupling/reduction/oxidation sequence was demonstrated. The compounds obtained possess various substitution patterns and could be used for the synthesis of a wide range of [2.2]paracyclophane derivatives by transformation of the bromine, hydroxy, and quinoid fragments.