Ten tabular- and eight ligulate-flowers and seven flower-heads from twenty-
two species of Compositae were investigated for their alkanediol. constitue
nts. All of the flowers contained alkanediols id small amounts suggesting t
heir widespread occurrence in these flowers. Twelve alkanediols were identi
fied as syn(R,S and/or S,R)-C-21-, C-25-, C-25-, and C-27- -C-35-alkane-6,8
-diols among which syn-hentriacontane-6,8-diol occurred abundantly in many
of the flowers. (C) 1998 Elsevier Science Ltd. All rights reserved.