Answers are grounded in this paper and cite their sources.
A new method for the stereoselective synthesis of (±)-avenaciolide and its analogues via methoxycarbonyl- or anisyloxycarbonyldi-γ-lactones, which could be easily prepared by the reaction of γ-substituted α-bromobutenolides with sodium salt of methyl or anisyl malonamate in good yields, was described.
No takes yet. Share an insight, caveat, or question.
Takei et al. (1980) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: