作者:Niels Weidmann、Marthe Ketels、Paul Knochel
DOI:10.1002/anie.201803961
日期:2018.8.13
The first sodiations of (hetero)arenes in continuous flow using NaDA (sodium diisopropylamide) in Me2EtN are reported. This flow procedure enables sodiation of functionalized arenes and heteroarenes that decompose under batch‐sodiation conditions. The resulting sodiated (hetero)arenes react instantly with various electrophiles, such as ketones, aldehydes, isocyanates, alkyl bromides, and disulfides
报道了在Me 2 EtN中使用NaDA(二异丙基酰胺钠)连续流动的(杂)芳烃的首次碱化。此流程可将在批分解条件下分解的官能化芳烃和杂芳烃进行皂化。所得的磺化(杂)芳烃立即与各种亲电子试剂(例如酮,醛,异氰酸酯,烷基溴化物和二硫化物)反应,以高收率提供多官能化(杂)芳烃。无需进一步优化就可以扩大规模。