Synthesis of (-)-(6R,10R)-matsuone. Assignment of relative stereochemistry to a pheromone of Matsucoccus pine bast scales
摘要:
A convergent, enantioselective synthesis of (-)-matsuone (1, (2E,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one), the primary sex attractant pheromone of the red pine scale Matsucoccus resinosae, is described.
matsuone (1), female sexpheromone of Matsucoccus resinosae pine scales, were convergently synthesized in high optical purities. The absoluteconfiguration of the natural product has been assigned as (2E, 4E, 6R, 10R)-4,6,10,12-tetramethyltridecan-2,4-dien-7-one. Bioassays with M. resinosae using these stereoisomers reveal that the unnatural (6R, 10S)-isomer mimics the natural pheromone.
Enantioselective synthesis of all four stereoisomers of (2E,4E)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one, the sex pheromone of matsucoccus pine bast scale
作者:Guo-qiang Lin、Xu Wei-chu
DOI:10.1016/s0040-4039(00)73817-2
日期:1993.9
A facile enantioselective synthesis of all four stereoisomers of (2E,4E)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one 1, the primary sex pheromone of matsucoccus pine bast scale is described. The stereochemistry at C-6 and C-10 of 1 was constructed by using opticallyactive citronellal as starting material and by the asymmetric Aldol reaction.
Concise Synthesis of a Racemic and Diastereomeric Mixture of the Sex Pheromones of<i>Matsucoccus</i>Pine Scales
作者:Hidenori Watanabe、Takeru Watanabe、Takeshi Kitahara、Kenji Mori
DOI:10.1271/bbb.61.127
日期:1997.1
A short (3–5 steps) synthesis of a racemic and diastereomeric mixture of Matsucoccus sex pheromones (1–3) is described. The key reaction is Lewis acid-mediated cyanation of symmetric tertiary alcohol 6 to afford common intermediate 7.