Water opens the door to organolithiums and Grignard reagents: exploring and comparing the reactivity of highly polar organometallic compounds in unconventional reaction media towards the synthesis of tetrahydrofurans
作者:Luciana Cicco、Stefania Sblendorio、Rosmara Mansueto、Filippo M. Perna、Antonio Salomone、Saverio Florio、Vito Capriati
DOI:10.1039/c5sc03436a
日期:——
employment of both anhydrous conditions and water-free reaction media is required for the successful handling of organometallic compounds with highly polarised metal–carbon bonds. Herein, we describe how, under heterogeneous conditions, Grignard and organolithium reagents can smoothly undergo nucleophilic additions to γ-chloroketones, on the way to 2,2-disubstituted tetrahydrofurans, “on water”, competitively
科学界始终坚信,要成功处理具有高度极化金属-碳键的有机金属化合物,需要使用无水条件和无水反应介质。在此,我们描述了在非均相条件下,格氏试剂和有机锂试剂如何在“在水中”顺利地与 γ-氯酮进行亲核加成,以“在水中”与质子分解竞争,在批量条件下,在室温下温度和空气下。还研究了上述有机金属试剂在常规无水有机溶剂和生物基低共熔混合物和低熔点混合物中的反应性,以进行比较。讨论了此类反应的范围和局限性。