A useful oxidation of C-H bond of benzylic acetals has been achieved. This method avoids the use of stoichiometric metals and is compatible with the presence of both electron-donating and electron-withdrawing substituents on the aromatic ring. Oxidation was carried out by rapid microwave irradiation of benzylic acetals with PhI(OAc)2 as the oxidant. This led to the oxidation of acetals into 2-acetoxy-1,3-dioxolanes. Furthermore, this transformation protocol encompasses a wide range of valuable conversions of these useful synthons into different carboxylic acid derivatives.

中文翻译：

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（二乙酰氧基碘）苯介导的苯甲醛缩醛的CH氧化。

已经实现了苄基缩醛的CH键的有用氧化。该方法避免了使用化学计量的金属，并且与芳环上的给电子取代基和吸电子取代基同时存在。通过以Phi（OAc）2为氧化剂的微波快速照射苄基乙缩醛进行氧化。这导致缩醛氧化成2-乙酰氧基-1，3-二氧戊环。此外，该转化方案包括这些有用的合成子向不同羧酸衍生物的广泛有价值的转化。