A simple and highly efficient catalytic system for the selective aerobic oxidative ring-opening of substituted furans has been achieved using Fe(NO₃)₃·9H₂O as a catalyst and air as an oxidant under mild conditions. A series of (Z)-1,4-enediones were obtained in good yields (up to 97%) with excellent stereoselectivity (up to > 20:1 Z/E ratio). The present synthetic method exhibits perfect atom economy, wide substrate scope, and highly functionalized products allowing diverse transformations.

中文翻译：

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硝酸铁催化取代呋喃有氧氧化开环立体选择性合成(Z)-1,4-烯二酮

_{以Fe(NO 3} ) ₃ · 9H ₂ O为催化剂，空气为氧化剂，在温和条件下实现了一种简单高效的取代呋喃选择性好氧氧化开环催化体系。以良好的收率（高达 97%）和优异的立体选择性（高达 > 20:1 Z / E比）获得了一系列 ( Z )-1,4-烯二酮。本合成方法表现出完美的原子经济性、广泛的底物范围和允许多种转化的高功能化产物。