5-[tert-butyl(dimethyl)silyl]oxyhex-2-yn-1-ol | 497859-43-5

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 5-[tert-butyl(dimethyl)silyl]oxyhex-2-yn-1-ol
• CAS: 497859-43-5
• 化学式: C₁₂H₂₄O₂Si
• 分子量: 228.407
• InChiKey: QCUYNQRBHGWQBU-UHFFFAOYSA-N

物化性质

• 沸点：
  274.5±20.0 °C(Predicted)
• 密度：
  0.913±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.78
• 重原子数：
  15.0
• 可旋转键数：
  3.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  29.46
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  5-[tert-butyl(dimethyl)silyl]oxyhex-2-yn-1-ol 在 Lindlar's catalyst 2,4,6-三甲基吡啶 、 copper(l) iodide 、 lithium aluminium tetrahydride 、 四丁基氟化铵 、 氢气 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  摘要：

  Our objectives were to identify and field test the sex pheromone of female Douglas-fir cone gall midge, Contarinia oregonensis (Diptera: Cecidomyiidae). Coupled gas chromatographic-electroantennographic detection (GC-EAD) analyses of pheromone extract revealed a single compound (A) that elicited responses from male antennae. Hydrogenation of pheromone extract, followed by renewed GC-EAD analysis, revealed a new EAD-active compound with chromatographic characteristics identical to those of tridecan-2-yl acetate on five fused silica columns (DB-5, DB-210, DB-23, SP-1000, and Cyclodex-B). Syntheses, chromatography, and retention index calculations of all possible tridecen-2-yl acetates suggested that the candidate pheromone A was a tridecadien-2-yl acetate with nonconjugated double bonds. Synthetic candidate pheromone component (Z,Z)-4,7-tridecadien-2-yl acetate (Z4Z7) cochromatographed with A on all analytical columns and elicited comparable antennal activity. In GC-EAD analyses that separated the enantiomers (Z,Z)4,7-tridecadien-(S)-2-yl acetate (2S-Z4Z7) and (Z,Z)-4,7-tridecadien-(R)-2-yl acetate (2R-Z4Z7) with baseline resolution, only 2S-Z4Z7 as a component in a racemic standard or in pheromone extract elicited antennal responses. In Douglas-fir seed orchards, sticky traps baited with 2S-Z4Z7 captured male C. oregonensis, whereas 2R-Z4Z7 was behaviorally benign. Comparable catches of males in traps baited with racemic Z4Z7 (50 mug) or virgin female C. oregonensis suggested that synthetic pheromone baits could be developed for monitoring C. oregonensis populations in commercial Douglas-fir seed orchards.

  DOI：

  10.1023/a:1021005517389
• 作为产物：
  描述：

  4-戊炔-2-醇 在 咪唑 、 正丁基锂 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 生成 5-[tert-butyl(dimethyl)silyl]oxyhex-2-yn-1-ol
  参考文献：
  名称：

  摘要：

  Our objectives were to identify and field test the sex pheromone of female Douglas-fir cone gall midge, Contarinia oregonensis (Diptera: Cecidomyiidae). Coupled gas chromatographic-electroantennographic detection (GC-EAD) analyses of pheromone extract revealed a single compound (A) that elicited responses from male antennae. Hydrogenation of pheromone extract, followed by renewed GC-EAD analysis, revealed a new EAD-active compound with chromatographic characteristics identical to those of tridecan-2-yl acetate on five fused silica columns (DB-5, DB-210, DB-23, SP-1000, and Cyclodex-B). Syntheses, chromatography, and retention index calculations of all possible tridecen-2-yl acetates suggested that the candidate pheromone A was a tridecadien-2-yl acetate with nonconjugated double bonds. Synthetic candidate pheromone component (Z,Z)-4,7-tridecadien-2-yl acetate (Z4Z7) cochromatographed with A on all analytical columns and elicited comparable antennal activity. In GC-EAD analyses that separated the enantiomers (Z,Z)4,7-tridecadien-(S)-2-yl acetate (2S-Z4Z7) and (Z,Z)-4,7-tridecadien-(R)-2-yl acetate (2R-Z4Z7) with baseline resolution, only 2S-Z4Z7 as a component in a racemic standard or in pheromone extract elicited antennal responses. In Douglas-fir seed orchards, sticky traps baited with 2S-Z4Z7 captured male C. oregonensis, whereas 2R-Z4Z7 was behaviorally benign. Comparable catches of males in traps baited with racemic Z4Z7 (50 mug) or virgin female C. oregonensis suggested that synthetic pheromone baits could be developed for monitoring C. oregonensis populations in commercial Douglas-fir seed orchards.

  DOI：

  10.1023/a:1021005517389

文献信息

• Furan Synthesis via a Tandem 1,2-Acyloxy Migration/[3 + 2] Cycloaddition/Aromatization of Enol Ether-Tethered Propargylic Esters
  作者：Zhiqiang Zhang、Luxin Chen、Ying Wang、Weikai Dai、Pengfei Li、Zhen Yang、Xiuhuan Li、Huaiji Zheng

  DOI：10.1021/acs.joc.3c00216

  日期：2023.6.2

  method for the synthesis of furans is developed via a tandem 1,2-acyloxy migration/intramolecular [3 + 2] cycloaddition/aromatization of enol ether-tethered propargylic esters. The reaction exhibits excellent functional group tolerance, broad substrate scope, and excellent chemoselectivity. The isolation of dihydrofuran intermediates in some cases gives more insight into the [3 + 2] cycloisomerization

  一种合成呋喃的有效方法是通过串联 1,2-酰氧基迁移/分子内 [3 + 2] 环加成/烯醇醚栓联的炔丙酯的芳构化开发的。该反应表现出优异的官能团耐受性、广泛的底物范围和优异的化学选择性。在某些情况下，分离二氢呋喃中间体可以更深入地了解 [3 + 2] 环异构化过程。