2-乙基-4-戊烯酸甲酯 | 42997-42-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 2-乙基-4-戊烯酸甲酯
• 中文别名: 阿喀利胺
• 英文名称: (2E,4E)-1-piperidin-1-yl-deca-2,4-dien-1-one
• 英文别名: 2,4-Decadienoylpiperidine；(2E,4E)-1-(Piperidin-1-yl)deca-2,4-dien-1-one；(2E,4E)-1-piperidin-1-yldeca-2,4-dien-1-one
• CAS: 42997-42-2
• 化学式: C₁₅H₂₅NO
• 分子量: 235.37
• InChiKey: ZPSGREUUQGTKDE-ZICOIJLXSA-N

物化性质

• 沸点：
  388.6±9.0 °C(Predicted)
• 密度：
  0.948±0.06 g/cm3(Predicted)
• 保留指数：
  2149.6;2140

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-乙基-4-戊烯酸甲酯 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 为溶剂， 生成 1-(piperidin-1-yl)-decan-1-one
  参考文献：
  名称：

  Adesina; Adebayo; Adesina, Pharmazie, 2002, vol. 57, # 9, p. 622 - 627

  摘要：

  DOI：
• 作为产物：
  描述：

  1-乙酰哌啶 在 aluminum oxide 作用下， 以 苯 为溶剂， 反应 2.0h， 生成 2-乙基-4-戊烯酸甲酯
  参考文献：
  名称：

  A facile synthesis of 3,4-dienamides by the reaction of propargyl alcohols with cyclic amide acetals, and their stereoselective rearrangement to 2(E),4(Z)-dienamides promoted with alumina. Total synthesis of isochavicine

  摘要：

  DOI：

  10.1021/jo00181a012

文献信息

• Highly stereoselective synthesis of (2E,4E)-dienamides and (2E,4E)-dienoates via a double elimination reaction
  作者：Tadakatsu Mandai、Tadashi Moriyama、Koichiro Tsujimoto、Mikio Kawada、Junzo Otera

  DOI：10.1016/s0040-4039(00)84052-6

  日期：1986.1

  Highly stereoselective synthesis of (2E,4E)-dienamides and (2E,4E)-dienoates was achieved through a double elimination reaction of β-acetoxy sulfones.

  通过（β-乙酰氧基）砜的双重消除反应实现了（2E，4E）-二酰胺和（2E，4E）-二烯酸酯的高度立体选择性合成。
• Expedient synthesis of unsaturated amide alkaloids from <i>Piper</i> spp: Exploring the scope of recent methodology
  作者：George M. Strunz、Heather J. Finlay

  DOI：10.1139/v96-046

  日期：1996.3.1

  The Sakai aryl aldehyde – cyclic ketone aldol – Grob fragmentation sequence was extended to cinnamaldehyde and cyclohexanone, and the product was elaborated to analogues of the alkaloid piperstachine. The effects of substituents on the reaction involving cinnamaldehyde were studied. The aldol-fragmentation sequence failed with benzaldehyde when cyclooctanone or cyclobutanone was substituted for cyclohexanone or cyclopentanone, and the reasons for this failure were examined. Four-carbon Wittig homologation of the piperonal–cyclobutanone aldol-fragmentation product, a hypothetical route to alkaloids such as retrofractamide A, was thus not viable. Instead, three-carbon homologation of the readily available piperonal–cyclopentanone product, using alkyne chemistry recently disclosed by Lu and Trost, afforded these alkaloids in excellent overall yield. The alkyne isomerization was also used to effect efficient syntheses of pellitorine and several other non-aromatic 2E,4E-dienoic Piper amide alkaloids. Key words: Piper, amides, alkaloids, insecticides, aldol, fragmentation, cinnamaldehydes, alkyne, redox, isomerization.

  Sakai芳基醛-环酮Aldol-Grob断裂序列被扩展到肉桂醛和环己酮，并将产物改造为吡啶碱类似物。研究了涉及肉桂醛的反应中取代基的影响。当环辛酮或环丁酮替代环己酮或环戊酮时，苯甲醛无法进行Aldol-断裂序列，对此失败的原因进行了研究。对吡哆醛-环丁酮Aldol-断裂产物进行了四碳Wittig同系化，这是通往碱类如retrofractamide A的假设路线，但该方法并不可行。相反，利用Lu和Trost最近披露的炔化学，对易得的吡哆醛-环戊酮产物进行了三碳同系化，以极高的总产率制备了这些碱类。炔异构化还被用于高效合成辣椒碱和几种其他非芳香2E,4E-二烯酸Piper酰胺类碱类。关键词：Piper、酰胺、碱类、杀虫剂、Aldol、断裂、肉桂醛、炔、氧化还原、异构化。
• Stereoselective synthesis of naturally occurring unsaturated amide alkaloids by a modified Ramberg–Bäcklund reaction
  作者：Yang Li、Yu Zhang、Zhi Huang、Xiaoping Cao、Kun Gao

  DOI：10.1139/v04-028

  日期：2004.5.1

  A convenient and rapid approach for the synthesis of naturally occurring unsaturated amide alkaloids 1a–1n by the recently developed one-flask Ramberg–Backlund reaction is described. The starting material was alcohol 3, which was transformed into thiolacetate 4 using the Mitsunobu reaction. In situ cleavage of acetyl moiety of 4, followed by alkylation of the resulting thiol with appropriate chloroacetamide

  描述了一种通过最近开发的单瓶 Ramberg??Backlund 反应合成天然存在的不饱和酰胺生物碱 1a??1n 的方便快捷的方法。起始原料是醇 3，使用 Mitsunobu 反应将其转化为硫代乙酸酯 4。4 的乙酰基部分的原位裂解，然后用合适的氯乙酰胺 5 将所得硫醇烷基化，提供硫化物 6。硫化物 6 氧化得到相应的砜 2。在氧化铝-存在下用二溴二氟甲烷处理砜 2二氯甲烷溶液中负载的氢氧化钾得到不饱和酰胺生物碱1a??1n。据我们所知，1e和1i的合成是首次报道。关键词：合成，不饱和酰胺生物碱，Ramberg??Backlund反应。
• Stereoselective preparation of conjugated dienoates and dienamides. New synthesis of pellitorine and pipercide
  作者：Robert Bloch、Dominique Hassan-Gonzales

  DOI：10.1016/s0040-4020(01)88048-0

  日期：1986.1

  E)-conjugated dienoates and dienamides of high stereoisomeric purities are prepared via thermal SO2 extrusion from cis-2,5-disubstituted-2,5-dihydrothiofene-1,1-dioxides generated by a retro Diels-Alder reaction. Applications of this method to the syntheses of two insecticidal natural dienamides : pellitorine and pipercide and of methyl tetradeca-2E,4,5-trienoate, an insect sex pheromone, are described.

  高热异构体纯度的（E）和（E，E）共轭二烯酸酯和二烯酰胺是通过热SO 2从由逆Diels生成的顺式-2,5-二取代-2,5-二氢噻吩-1,1-二氧化物热SO 2挤出制备的-Al木反应。描述了该方法在两种杀虫性天然二烯酰胺的合成中的应用：拼花碱和哌啶和昆虫性信息素十四烷-2E，4,5-三烯酸甲酯。
• (2E,4E)-5-Tosyl-2,4-pentadienamides: New dienic sulfones for the stereoselective synthesis of (2E,4E)-dienamides
  作者：M.Carmen Bernabeu、Rafael Chinchilla、Carmen Nájera

  DOI：10.1016/0040-4039(95)00594-3

  日期：1995.5

  The iodosulfonylation of (2E)-pentadienamides 1 affords stereoselectively (2E,4E)-5-tosylpentenamides2. These dienic sulfones suffer nucleophilic vinylic substitution of the tosyl group by sodium thiolates and Grignard reagents to give regio- and stereo-selectively (2E,4E)-dienamides 3. This methodology has been applied to the synthesis of sarmentine (3bg) and an Achillea amide (3cg).

  （2 E）-戊二烯酰胺1的碘磺酰化可立体选择性地提供（2 E，4 E）-5-甲苯磺酰基戊烯酰胺2。这些二烯砜遭受硫醇钠和格利雅试剂的甲苯磺酰基的亲核乙烯基取代，以产生区域和立体选择性（2 E，4 E）-二酰胺3。该方法已应用于合成sarmentine（3bg）和Achillea amide（3cg）。