Long-chain alkanediols, ketoaldehydes, ketoalcohols and ketoalkyl esters in the cuticular waxes of Osmunda regalis fronds

被引:37
作者
Jetter, R [1 ]
Riederer, M [1 ]
机构
[1] Univ Wurzburg, Julius von Sachs Inst Biowissensch, D-97082 Wurzburg, Germany
关键词
Osmundaceae; ferns; cuticular wax; alcohols; diols; esters; ketones;
D O I
10.1016/S0031-9422(99)00309-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In the frond waxes of Osmunda regalis four homologous series of previously unknown compounds were detected. In order to assign their structures various derivatives were prepared and analyzed by GC-MS. The wax components were identified as C-28 to C-32 alkanediols, C-26 to C-36 ketoalcohols, C-28 to C-36 ketoaldehydes and long-chain fatty acid esters of C-28 to C-36 ketoalcohols. All fractions showed strong prevalence of even numbered homologues with a maximum for C-30. Isomer distributions were in all cases dominated by 1,9, 1,11-, 1,13- and 1,15-compounds, their relative abundances shifting towards the latter with increasing homologue chain length. A total of 77 (69 novel) compounds were identified, partially as minor components in unresolved isomer mixtures. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:907 / 915
页数:9
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