作者:Hirosato Takikawa、Kazuhiko Isono、Mitsuru Sasaki、Francisco A. Macı́as
DOI:10.1016/s0040-4039(03)01782-9
日期:2003.9
Annuionones (1-5), allelopathic agents isolated from Helianthus annus (sunflower), were reported to be ionone-type bisnorsesquiterepenes. However, the proposed structures for annuionones A (1), B (2) and E (5) were thought to be incorrect. Thus, we have tentatively proposed a revised structure (6) for annuionone A based on careful re-analyses of the reported spectral data. The synthesis of (+/-)-6 was accomplished to prove the structure of natural annuionone A as 6. (C) 2003 Elsevier Ltd. All rights reserved.
Synthesis and absolute configuration of annuionone A
Synthesis of both enantiomers of annuionone A (1), an allelopathic agent isolated from Helianthus annuus (sunflower), was accomplished. The absolute configuration of the naturally occurring I was determined to be IS,5R,8R. (c) 2005 Elsevier Ltd. All rights reserved.
Liepa, Andris J.; Wilkie, John S.; Winzenberg, Kevin N., Australian Journal of Chemistry, 1989, vol. 42, # 8, p. 1217 - 1225
作者:Liepa, Andris J.、Wilkie, John S.、Winzenberg, Kevin N.