ω-ETHYL, ω-ETHENYL AND ω-ETHYNYL-α-ALKYLIDENE-γ-LACTONES FROM CLINOSTEMON MAHUBA

Article abstract of DOI:10.1016/S0031-9422(00)84166-7

Key Word Index - Clinostemon mahuba; Lauraceae; mahuba lactones; α-alkylidene-β-hydroxy-γ-methylene-γ-lactones; α-alkylidene-β-hydroxy-γ-methyl-γ-lactones. The trunk wood of Clinostemon mahuba contains eight (3R)-2-alkylidene-3-hydroxy-4-methylenebutanolides, seven (3R,4S)-2-alkylidene-3-hydroxy-4-methylbutanolides and seven (3S,4S)-2-alkylidene-3-hydroxy-4-methylbutanolides distinguished by the alkylidene side chains with respect to their E- or Z-geometry, ethenyl, ethynyl or ethyl terminals and lengths (C16 or C18).