作者:Libo Ruan、Min Shi、Nian Li、Xu Ding、Fan Yang、Jie Tang
DOI:10.1021/ol403762e
日期:2014.2.7
An efficient and practical method for the synthesis of unsymmetric benzils from readily available β-ketoaldehydes has been developed. Various unsymmetric 1,2-diaryldiketones bearing functional groups have been obtained in good to excellent yields under mild reaction conditions. A plausible mechanism was proposed, and α,α-dichloroketone was considered as the key intermediate. The generation of α,α-dichloroketones
已经开发了一种从容易获得的β-酮醛合成不对称苯的有效且实用的方法。在温和的反应条件下,已经获得了各种具有官能团的不对称的1,2-二芳基二酮,其收率很好。提出了一个合理的机制,并认为α,α-二氯酮是关键中间体。由β-酮醛生成α,α-二氯酮可经历以下步骤:(1)由次氯酸钠氧化,(2)脱羧,和(3)由次氯酸钠生成的Cl 2氯化。