Structure Elucidation and Synthesis of Dioxolanes Emitted by Two <i>Triatoma</i> Species (Hemiptera: Reduviidae)
作者:B. Bohman、A. Tröger、S. Franke、M. G. Lorenzo、W. Francke、C. R. Unelius
DOI:10.1021/np100748r
日期:2011.4.25
5S*)-4-ethyl-5-methyl-2-(2-methylpropyl)-1,3-dioxolane (5) (trace component). Syntheses of optically active 1 and 3 were carried out by reacting pure enantiomers of 2,3-pentanediol with 3-pentanone or 2-methylpropanal. The preparation of pure stereoisomers of 2,3-pentanediol involved a novel key step for the synthesis of secondary alcohols: the reduction of a carboxylic ester by means of DIBAH and in situ alkylation
通过SPME-GC / MS分析了两个真实的Triatominae亚科的臭虫,巴西的Triatoma brasiliensis和Triatoma infestans的后胸骨挥发物。发现了两组新的天然产物:(4 S,5 S)-和(4 R,5 R)-2,2,2,4-三乙基-5-甲基-1,3-二氧戊环(1)(主要成分)和(4 S *,5 S *)-2,4-二乙基-2,5-二甲基-1,3-二氧戊环(2)(痕量组分),(2 R / S,4 S,5 S)-以及(2 R / S,4 R,5 R)-4-乙基-5-甲基-2-(1-甲基乙基)-1,3-二氧戊环(3)(次要成分),(2 R / S,4 S *,5 S *)-4 -乙基-5-甲基-2-(1-甲基丙基)-1,3-二氧戊环(4)(痕量组分)和(2 R / S,4 S *,5 S *)-4-乙基-5-甲基-2-(2-甲基丙基)-1,3-二氧戊环(5)(