The Synthesis of Deoxyfusapyrone. 2. Preparation of the Bis-Trisubstituted Olefin Fragment and Its Attachment to the Pyrone Moiety
摘要:
A convergent and modular synthesis has been devised to construct the eight diastereoisomers of deoxyfusapyrone (1). In this paper the synthesis of the complex polyene chain is reported as is its connection to the pyrone moiety that is in the middle of the structure of the final target molecule. This route has been fully worked out for one of the isomers and will now be applied in a parallel synthesis format to make all the stereoisomers of 1.
Synthesis of the (5S,9R)-isomer of 5,9-dimethylpentadecane, the major component of the female sex pheromone of the coffee leaf miner moth, Leucoptera coffeella
作者:Kenji Mori
DOI:10.1016/j.tetasy.2008.03.016
日期:2008.4
(5S,9R)-5,9-Dimethylpentadecane, one of the stereoisomers of the major component of the female sex pheromone of the coffee leaf miner moth (Leucoptera coffeella), was synthesized by starting from (R)-3-methyl-4-butanolide and (S)-citronellal. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of All the Stereoisomers of 7-Methylheptadecane and 7,11-Dimethylheptadecane, the Female Sex Pheromone Components of the Spring Hemlock Looper and the Pitch Pine Looper
the stereoisomers of 7-methylheptadecane (1) and 7,11-dimethylheptadecane (2) were synthesized by starting from the enantiomers of citronellol (3) and methyl 3-hydroxy-2-methylpropanonate (8), respectively. A short synthesis of meso-7,11-dimethylheptadecane [(7R,11S)-2] was achieved starting from meso-2,6-dimethylheptanedioic acid [(2R,6S)-21]. A mixture of (S)-1 and (7R,11S)-2 is the pheromone of the
Synthesis of All Four Possible Stereoisomers of 5,9-Dimethylpentadecane, the Major Sex Pheromone Component of the Coffee Leaf Miner Moth,<i>Perileucoptera coffeella</i>
All of the four possible stereoisomers of 5,9-dimethylpentadecane, the majorsexpheromonecomponent of the coffee leaf miner moth (Perileucoptera coffeella), were synthesized by using the methyl esters of (S)- and (R)-3-hydroxy-2-methylpropanoic acid as chiral sources for the purpose of determining the stereochemistry of the pheromone.