Titanium-Mediated Synthesis of 1,4-Diketones from Grignard Reagents and Acyl Cyanohydrins
作者:Paul Setzer、Alice Beauseigneur、Morwenna S. M. Pearson-Long、Philippe Bertus
DOI:10.1002/anie.201003923
日期:2010.11.8
Double duty: In the presence of titanium isopropoxide, Grignard reagents were found to react with acyl cyanohydrins to give substituted 5‐hydroxy‐1,4‐diketones (see scheme). This new reaction involves a formal addition of a 1,2‐dianion equivalent to both the ester and nitrile moieties.
双重职责:在异丙醇钛存在下,发现格氏试剂与酰基氰醇反应生成取代的5-羟基-1,4-二酮(参见方案)。这一新反应涉及正式加入与酯和腈部分均等价的1,2-二价阴离子。