TY - JOUR A1 - Summons, RE A1 - Capon, RJ T1 - Botryococcenone, an Oxygenated Botryococcene From Botryococcus braunii JF - Australian Journal of Chemistry JO - Aust. J. Chem. Y1 - 1991 VL - 44 IS - 2 SP - 313 EP - 322 KW - UR - https://doi.org/10.1071/CH9910313 N2 - A new botryococcene (5) incorporating an unprecedented ketone functionality has been identified in the lipid extract of an Australian collection of the green alga Botryococcus braunii Kutzing . The structure was established by detailed n.m.r. and mass spectroscopic analysis. A saturated hydrocarbon (8) prepared from this ketone by catalytic hydrogenation and Wolff-Kishner reduction has a different carbon skeleton to that of (9) prepared by hydrogenation of the co-occurring C33 botryococcene. ER -