Unsaturated spiro-γ-lactone formation by the dissociative reduction of bromoacetates
摘要:
Unsaturated spiro-gamma-butyrolactones can be prepared in good yields from bromoacetate precursors by a simple route that requires only 2-propanol as solvent and free radical initiation.
The Enol Lactone Approach to Protected Hydroxy γ-Lactones (5-Hydroxy-dihydro-furan-2-ones)
作者:Norbert Zander、Wolf Langschwager、H. M. R.Hoffmann
DOI:10.1080/00397919608004782
日期:1996.12
Abstract Oxidation of 5-alkylidene-dihydro-furan-2-ones with dimethyldioxirane and opening of the resulting epoxide furnished γ-alkoxy and α-siloxy protected γ-lactones.