作者:Frank Schmidt、Aparna Viswanathan Ammanath、Friedrich Götz、Martin E. Maier
DOI:10.1002/ejoc.202300615
日期:2023.9.21
Using some straightforward alkyne chemistry and an asymmetric dihydroxylation on a dienoate, the substrate for a ring-closing alkyne metathesis (RCAM) was assembled in a few steps. After semihydrogenation of the triple bond, the resulting macrolactone was converted to berkeleylactone A through acetal hydrolysis, allylic oxidation, thia-Michael addition, hydrogenation, and ester hydrolysis. The 8,9-didehydro
使用一些简单的炔化学反应和二烯酸酯上的不对称二羟基化,通过几个步骤组装了闭环炔复分解 (RCAM) 的底物。三键半氢化后,所得大环内酯通过缩醛水解、烯丙基氧化、硫杂-迈克尔加成、氢化和酯水解转化为伯克利内酯A。还制备了8,9-二脱氢类似物。