Cyclic oligolides via acylketene mediated lactonization: Synthesis and characterization
作者:Shawn W.E. Eisenberg、Chixu Chen、Jiangyue Wu、Carlito Lebrilla、Mark J. Kurth
DOI:10.1016/0040-4039(96)01757-1
日期:1996.10
An acylketenemediated cyclization protocol delivers a series of cyclicoligolides, the largest characterized cyclicoligolide having a 77-membered ring. 6-(ω-Hydroxyalkyl)dioxinone analogs were prepared and cyclizations were conducted under a variety of conditions in refluxing toluene. 1H-NMR, 13C-NMR, and several different mass spectrometric techniques were employed to verify the cyclic nature of