Zur Konstitution des Limonins I. Über den Verlauf der alkalischen Hydrolyse von Limonin und Limonol
作者:A. Melera、K. Schaffner、D. Arigoni、O. Jeger
DOI:10.1002/hlca.19570400529
日期:——
The ketonic bitter principle limonin and the corresponding secondary alcohol limonol have been shown to undergo a deep-seated hydrolytic cleavage in the presence of alkali. The course of these cleavages which lead to a new series of compounds with 20 and 21 carbon atoms respectively, involves the splitting of a β-substituted furan nucleus. These as well as previous findings are interpreted in terms
<i>Citrus</i> Limonoids and Their Semisynthetic Derivatives as Antifeedant Agents Against <i>Spodoptera frugiperda</i> Larvae. A Structure−Activity Relationship Study
作者:Giuseppe Ruberto、Agatino Renda、Corrado Tringali、Edoardo M. Napoli、Monique S. J. Simmonds
DOI:10.1021/jf020607u
日期:2002.11.1
(3) and their semisynthetic derivatives 4-26 was evaluated against a commercially important pest, Spodoptera frugiperda. Simple chemical conversions were carried out on the natural limonoids obtained from seeds of Citrus limon. These conversions focused on functional groups considered to be important for the biological activity, namely the C-7 carbonyl and the furan ring. In particular, reduction at