The carbamate (–O2CNR2) function is an excellent directing group for palladium-catalysed direct arylation reactions giving both protected or free mono- or di-substituted phenols, as well as an example of a dibenzopyranone, depending on coupling partners (aryl iodides or diaryliodonium salts) and conditions.
碳酸酯(–O2CNR2)功能团是
钯催化直接芳基化反应的优良指向基,可以根据偶联伙伴(芳基
碘化物或二芳基
碘盐)和反应条件生成保护的或自由的单取代或双取代
苯酚,以及一个二苯并
吡喃酮的例子。