A Route for the Total Synthesis of Enantiomerically Enriched Jasmonates 12-COOH-JA and 12-COOH-JA-Ile
作者:Clément F. Heinrich、Emilie Widemann、Jérémie Sanz、Raphaël Lugan、Thierry Heitz、Franck Pinot、Michel Miesch、Laurence Miesch
DOI:10.1002/ejoc.201403347
日期:2015.2
Enantiomerically enriched oxidized conjugated or non-conjugated jasmonate derivatives were obtained through 3-alkynoates. Stereoselectivereduction of the triple bond afforded exclusively the Z isomer. Protection of the amide function led to the non-conjugated derivatives, whereas the free amides provided the oxidized isoleucine derivatives of jasmonate.
对映体富集的氧化共轭或非共轭茉莉酸衍生物是通过 3-炔酸酯获得的。三键的立体选择性还原仅提供 Z 异构体。酰胺功能的保护导致非共轭衍生物,而游离酰胺提供茉莉酸的氧化异亮氨酸衍生物。
An Expeditious Synthesis of Methyl Jasmonate
作者:Christian Chapuis、Carole Cantatore、Jean-Yves de Saint Laumer
DOI:10.1002/hlca.200690124
日期:2006.6
We present an efficient three-step, two-pot synthesis of methyljasmonate (trans-1) based on Diels–Alder cycloaddition of cyclopent-2-enone (2) and chloroprene (= 2-chlorobuta-1,3-diene; 3d) in either CHCl3 or CH2Cl2, catalyzed by SnCl4 (0.2 mol-equiv.) at 20° (75% yield). Subsequent ozonolysis of a cis/trans 55 : 45 mixture of the cycloadduct 4d in either CH2Cl2 or AcOEt at − 78°, followed by addition
Process for the Preparation of Cyclopentanone Derivatives
申请人:Lem Jorge M.
公开号:US20080214859A1
公开(公告)日:2008-09-04
The present invention relates to the field of organic synthesis and more particularly to a new process for the preparation of an acetal derivative of an alkyl 3-oxo-2-(2-oxoethyl)-1-cyclopentaneacetate. The invention also relates to a method to use said acetal derivative to prepare intermediates useful for the preparation of perfuming ingredients.
Abstract Methyl5′,5′,5′-trifluorojasmonate was synthesized as an antimetabolic analogue of methyl jasmonate. It induced potato tuber formation more effectively than methyl jasmonate and inhibited the growth of rice seedlings and the germination of lettuce and radish seeds. These results suggest that epijasmonic acid itself has potatotuber-inducingactivity and that the hydroxyl group of tuberonic