Palladium II promoted rearrangement of germacranolides. Synthesis of (+)-stoebenolide and (+)-dehydromelitensin
作者:Alejandro F. Barrero、J.Enrique Oltra、Míriam Álvarez
DOI:10.1016/s0040-4039(97)10775-4
日期:1998.3
rearrangement to elemanolides. On the other hand, equimolecular amounts of the palladium complex transformed germacranolides into eudesmanolides. These phenomena provide a versatile procedure for the synthesis of eudesmanolides and elemanolides under relatively mild experimental conditions. Thus, (+)-stoebenolide and (+)-dehydromelitensin were alternatively synthesized starting out from (+)-salonitenolide
催化量的氯化双(苄腈)钯(II)可以提高germ草内酯的反应速率,应对重排成电子杀螨醇。另一方面,等摩尔量的钯络合物将germ草内酯转化为马来酸内酯。这些现象为在相对温和的实验条件下合成阿德曼香皂苷和电子香茅素提供了一种通用的方法。因此,交替地从(+)-salonitenolide开始合成(+)-硬皮烯内酯和(+)-脱氢melitensin。