作者:Hanlie R. Wessels、Harry W. Gibson
DOI:10.1016/j.tet.2015.11.055
日期:2016.1
Dibenzo-30-crown-10 (DB30C10, 1c), dibenzo-24-crown-8 (DB24C8, 1a), 4-carbomethoxydibenzo-24crown-8 (1b) and a new crown ether, 4-carbomethoxydibenzo-30-crown-10 (1d), were synthesized by a simple, high yielding, three-step method. Potassium ions from the highly soluble KPF6 were employed to template the cyclization step, which resulted in very high isolated yields (80–90%).
二苯并30冠10(DB30C10,1C),二苯并24crown-8(DB24C8,1A),4- carbomethoxydibenzo-24crown-8(图1b)和一个新的冠醚,4- carbomethoxydibenzo-30-官方所有─通过简单,高产率的三步法合成了10(1d)。高溶解性KPF 6中的钾离子被用于模板化环化步骤,从而获得了很高的分离产率(80-90%)。