for the synthesis of diarylmethine‐containing compounds. However, the methods developed to date for this purpose require a stoichiometric amount (usually more) of either a strong base or an oxidant. Reported here is the first catalytic benzylic C−H bond addition of diarylmethanes to styrenes and conjugated dienes. A potassium zincate complex, generated from potassium benzyl and zinc amide, acts as
An efficient and practical (hetero)benzylic sp3 C–H oxidation method has been developed. Notably, this user-friendly protocol employs inexpensive potassium tert-butoxide (KOtBu) as a promoter and proceeds under mild conditions using oxygen as the oxidant. A large variety of oxidation products were prepared in good to excellent yields. The utility of this “green” methodology was further demonstrated
已经开发出一种有效且实用的(杂)苄基sp 3 C–H氧化方法。值得注意的是,该用户友好的方案使用廉价的叔丁醇钾(KO t Bu)作为促进剂,并在温和条件下使用氧气作为氧化剂进行反应。制备了多种氧化产物,收率良好至优异。这种“绿色”方法的实用性通过按比例放大制备具有生物学价值的分子得到了进一步证明。
BuOK facilitated addition of diarylmethanes to styrenes through a radical reaction mechanism
bonding of diarylmethanes to alkenes through a radical pathway. Diaryl compound products can be obtained under mild conditions with good yields. The reaction employed a practical approach by utilizing only 10% potassium -butoxide to synthesize diaryl compounds through a radicalmechanism. The radical nature of this reaction was confirmed through radical capture experiments and EPR. Furthermore, we substantiated