Syntheses of Both Diastereoisomers of 2,8-Dioxabicyclo[3.2.1]octane Derivatives: Degradation Products of Daphniphyllum Alkaloids
作者:Boonsong Kongkathip、Rongsan Sookkho、Ngampong Kongkathip、Walter C. Taylor
DOI:10.1246/cl.1999.1095
日期:1999.10
Both diastereoisomers of 1,4-dimethyl-2,8-dioxabicyclo[3.2.1]octane-4-caboxylic acid ester (3, 4) and the 4-hydroxy methyl analogues (5, 6) were synthesised from ethylacetoacetate and diethylmalonate respectively. The key step of these process involved intramolecular cyclisation using palladium chloride as catalyst.