Macrolactonization via Ti(IV)-Mediated Epoxy-Acid Coupling: A Total Synthesis of (−)-Dactylolide [and Zampanolide]
作者:Thomas R. Hoye、Min Hu
DOI:10.1021/ja035579q
日期:2003.8.1
A totalsynthesis of dactylolide (1) is described. The key feature involves the Ti(IV)-mediated coupling of structurally complex "Sharpless epoxides" and carboxylic acids in either an intramolecular (macrolactonization) or an intermolecular mode. Other notable aspects include a proton-catalyzed, cis-selective construction of the 4-methylenetetrahydropyran ring; a selective oxidation of an allylic alcohol