Triple nucleophilic additions of (trimethylsilyl)ketene acetals to tropylium derivatives: access to the core nuclei of xanthanolides
作者:Henri Rudler、Cecilio Alvarez、Andrée Parlier、Eugenia Perez、Bernard Denise、Yiming Xu、Jacqueline Vaissermann
DOI:10.1016/j.tetlet.2004.01.068
日期:2004.3
The 5,7-fused system of xanthanolides was achieved in three steps from tropylium tetrafluoroborate and ketene acetals via complexes of cycloheptatriene carboxylic acid esters and chromium tricarbonyl.
黄原酸内酯的5,7稠合体系是通过环庚三烯羧酸酯和三羰基铬的络合物从四氟硼酸对甲苯铵和乙烯酮缩醛分三步获得的。