作者:Martina Čížková、Viliam Kolivoška、Ivana Císařová、David Šaman、Lubomír Pospíšil、Filip Teplý
DOI:10.1039/c0ob00507j
日期:——
developed capitalizing on a direct pyridine-type nitrogen quaternization followed by metal-catalyzed [2+2+2] cycloaddition with gaseous acetylene. The flexibility of the route is demonstrated on 12 diverse scaffolds based on pyridinium, quinolinium, thiazolium, benzothiazolium, imidazolium, and pyrimidinium. Electrochemical study revealed a quinolinium redox system with two electrochemically distinct forms
利用直接吡啶型氮季铵化反应,然后利用金属催化的气态金属[2 + 2 + 2]环加成反应,开发了一种用于构造单阳离子季氮杂芳构架的模块化方法 乙炔。该路线的灵活性在基于吡啶鎓,喹啉鎓,噻唑鎓,苯并噻唑鎓,咪唑鎓和嘧啶鎓的12种不同支架上得到了证明。电化学研究表明,喹啉氧化还原体系具有两种电化学上不同的形式,这些形式通过快速电子转移(在-0.7 V时还原和在-0.05 V时氧化)触发的均相化学反应而相互转化。