Cyclizations of the C10 Fatty Acids from the Mandibulary Glands of the HoneybeeApis mellificaL.: Queen substance and royal jelly acid
作者:Michel Barbier
DOI:10.1002/hlca.19810640517
日期:1981.7.22
Series of assays have been performed to cyclize the two main C10 aliphatic acids, (E)-9-oxo-dec-2-enoic acid (3) (queensubstance) and (E)-10-hydroxy-dec-2-enoic acid (7) (royaljellyacid) produced by the mandibularyglands of the honeybee Apis mellificaL. Queensubstance 3, resistant to thermocyclization, was cyclized by the action of polyphosphoric acid to the fulvene ketone 5. Triphenylphosphinediethyl
(±)-Phoracantholid I via the caesium carbonate-promoted ring closures of the methanesulphonate of 9-hydroxydecanoic acid
作者:Michel barbier
DOI:10.1039/c39820000668
日期:——
(±)-PhoracantholidI, a product from the secretion of the longicorn Phoracantha synonyma, has been synthesised via the caesium carbonate treatment of the methanesulphonate of 9-hydroxydecanoicacid, prepared from the easily accessible 9-oxo-derivative.