作者:Lukas Ochmann、Mika L. Kessler、Peter R. Schreiner
DOI:10.1021/acs.orglett.2c00042
日期:2022.2.25
new acid-free method for the generation of carbocations based on a redox condensation reaction that enables SN1 reactions with a variety of nucleophiles. We utilize readily synthesized phosphinites that are activated by diisopropyl azodicarboxylate to form betaine structures that collapse upon adding a pronucleophile, thereby yielding reactive carbocation intermediates. We also employ this approach
我们提出了一种基于氧化还原缩合反应的无酸生成碳正离子的新方法,该反应能够与各种亲核试剂发生S N 1 反应。我们利用容易合成的亚膦酸盐,这些亚膦酸盐被偶氮二甲酸二异丙酯活化,形成甜菜碱结构,该结构在添加亲核试剂后坍塌,从而产生反应性碳阳离子中间体。我们还采用这种方法对一些生物活性分子进行烷基化。