Synthesis of (+)-altholactone, (+)-7-epi-altholactone, (−)-etharvensin, and (+)-alumheptolide-A using Pd-catalyzed carbonylation
作者:Yuki Miyazawa、Yasunao Hattori、Hidefumi Makabe
DOI:10.1016/j.tetlet.2018.09.062
日期:2018.11
Syntheses of (+)-altholactone isolated from Goniothalamus giganteus and its C-7 epimer (+)-7-epi-altholactone, (−)-etharvensin and (+)-alumheptolide-A were achieved. The lactone ring of these compounds was constructed using Pd-catalyzed carbonylation.
An olefination approach to the enantioselective syntheses of several styryllactones
作者:Joel M Harris、George A O'Doherty
DOI:10.1016/s0040-4020(01)00355-6
日期:2001.6
Sharpless catalytic asymmetric dihydroxylation to vinylfuran. The resulting diols are produced in high enantioexcess and can be stereoselectively transformed into α,β-unsaturated-δ-lactones via a short highly diastereoselective oxidation and reduction sequence. Wittig olefination or Julia olefination reactions were used to introduce the phenyl group side chain either cis or trans selectively and these