Wavelength dependent photoextrusion and tandem photo-extrusion reactions of ninhydrin bis-acetals for the synthesis of 8-ring lactones, benzocyclobutenes and orthoanhydrides
作者:Wei Sun、Surajit Kayal、William A. T. Raimbach、Xue-Zhong Sun、Mark E. Light、Magnus W. D. Hanson-Heine、Michael W. George、David C. Harrowven
DOI:10.1039/d1cc06800h
日期:——
Ninhydrin bis-acetals give access to 8-ring lactones, benzocyclo-butenes and spirocyclic orthoanhydrides through photoextrusion and tandem photoextrusion reactions. Syntheses of fimbricalyxlactone B, isoshihunine and numerous biologically-relevant heterocycles show the value of the methods, while TA-spectroscopy and TD-DFT studies provide mechanistic insights on their wavelength dependence.
茚三酮双缩醛通过光挤出和串联光挤出反应获得 8 环内酯、苯并环丁烯和螺环原酸酐。fibricalyxlactone B、异鼠宁和许多生物相关杂环的合成显示了这些方法的价值,而 TA 光谱和 TD-DFT 研究提供了关于其波长依赖性的机理见解。