5-methyl-2,4-hexadienal | 4303-56-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-methyl-2,4-hexadienal
• 英文别名: 5-methylhexa-2,4-dienal
• CAS: 4303-56-4
• 化学式: C₇H₁₀O
• 分子量: 110.156
• InChiKey: DRJLBCUBINNBSR-UHFFFAOYSA-N

物化性质

• 沸点：
  90-91 °C(Press: 23 Torr)
• 密度：
  0.9036 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  5-methyl-2,4-hexadienal 在 2-pentafluorophenyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate 、 N,N-二乙基乙酰胺 、 (S)-2-(((2-((3,5-bis(trifluoromethyl)phenyl)amino)-3,4-dioxocyclobut-1-en-1-yl)amino)methyl)pyrrolidin-1-ium 2,2,2-trifluoroacetate 、 sodium acetate 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 25.0h， 生成 (2aR,5aR,10bS,10cS)-10b-hydroxy-4,10c-dimethyl-2,2a,5,5a-tetrahydroaceanthrylene-1,6-dione
  参考文献：
  名称：

  1,4-Naphthoquinones in H-Bond-Directed Trienamine-Mediated Strategies

  摘要：

  The synthesis of optically active, carboannulated dihydronaphthoquinone and naphthoquinone derivatives with up to four stereogenic centers is demonstrated by H-bond-directed, trienamine-mediated [4 + 2]-cycloadditions. The outcome of the reaction between 2,4-dienals and 1,4-naphthoquinones is controlled by the substituent in the 2-position of the 1,4-naphthoquinone. In the case of sterically demanding 2-substituted derivatives, dihydronaphthoquinones are obtained. However, when a hydrogen atom is present in the 2-position, a subsequent oxidation of the initially formed cycloadducts occurs yielding naphthoquinones.

  DOI：

  10.1021/ol401204a
• 作为产物：
  描述：

  2,2-二甲基-4-戊烯酸 生成 5-methyl-2,4-hexadienal
  参考文献：
  名称：

  Photochemical reactions of simple cyclopentenones

  摘要：

  DOI：

  10.1021/ja00750a034

文献信息

• Enantioselective Formal [4+2] Cycloadditions to 3-Nitroindoles by Trienamine Catalysis: Synthesis of Chiral Dihydrocarbazoles
  作者：Yang Li、Fernando Tur、Rune Pagh Nielsen、Hao Jiang、Frank Jensen、Karl Anker Jørgensen

  DOI：10.1002/anie.201509693

  日期：2016.1.18

  enantioselective formal [4+2] cycloadditions of 3‐nitroindoles are presented. By using 3‐nitroindoles in combination with an organocatalyst, chiral dihydrocarbazole scaffolds are formed in moderate to good yields (up to 87 %) and enantioselectivities (up to 97 % ee). The reaction was extended to include enantioselective [4+2] cycloadditions of 3‐nitrobenzothiophene. The reaction proceeds through a [4+2] cycl

  提出了第一个3-硝基吲哚的对映选择性形式[4 + 2]环加成反应。通过将3-硝基吲哚与有机催化剂结合使用，可以形成中等至良好的收率（高达87％）和对映选择性（高达97％ee）的手性二氢咔唑支架。反应扩展到包括3-硝基苯并噻吩的对映选择性[4 + 2]环加成反应。反应在温和的反应条件下通过[4 + 2]环加成/消除级联进行。此外，提出了对映体富集的对映体的环加合物的非对映选择性还原。基于实验和计算研究，讨论了反应机理。
• Trienamine catalyzed asymmetric synthesis and biological investigation of a cytochalasin B-inspired compound collection
  作者：Magnus Sellstedt、Melanie Schwalfenberg、Slava Ziegler、Andrey P. Antonchick、Herbert Waldmann

  DOI：10.1039/c5ob02272j

  日期：——

  Asymmetric trienamine catalysis was used to synthesize cytochalasin B-like compounds and inhibition of glucose uptake in cancer cells was demonstrated.

  非对称三烯胺催化用于合成细胞松弛素B样化合物，并在癌细胞中展示了抑制葡萄糖摄取的作用。
• Organocatalytic Strategy for the Enantioselective Cycloaddition to Trisubstituted Nitroolefins to Create Spirocyclohexene-Oxetane Scaffolds
  作者：Alicia Monleón、Florian Glaus、Stefania Vergura、Karl Anker Jørgensen

  DOI：10.1002/anie.201510731

  日期：2016.2.12

  excellent selectivities. This strategy also enabled access to chiral spirocyclohexene‐cyclobutanes and ‐azetidines. Additionally, the obtained scaffolds can undergo diverse transformations leading to complex structures with up to four stereocenters, and we demonstrate that the nitro group, under nucleophilic conditions, can be applied for ring‐opening of the oxetane.

  报道了对α，β，β-三取代硝基烯烃的第一个催化对映选择性环加成反应。为此，将硝基烯烃氧杂环丁烷与三烯胺催化促进的2,4-二烯醛反应。这种方法学为合成具有两个相邻的四取代碳原子的高官能度手性螺环己烯-氧杂环丁烷提供了一种简便有效的策略，该方法具有高收率和出色的选择性。该策略还使得能够获得手性螺环己烯-环丁烷和氮杂环丁烷。此外，获得的支架可以经历多种转化，从而形成具有多达四个立体中心的复杂结构，并且我们证明了在亲核条件下，硝基可以用于氧杂环丁烷的开环。
• An asymmetric normal-electron-demand aza-Diels–Alder reaction via trienamine catalysis
  作者：Jing-Xin Liu、Qing-Qing Zhou、Jin-Gen Deng、Ying-Chun Chen

  DOI：10.1039/c3ob41698d

  日期：——

  An asymmetric normal-electron-demand aza-Diels–Alder cycloaddition of 2-aryl-3H-indol-3-ones and 2,4-dienals was explored via trienamine catalysis of a chiral secondary amine. Multifunctional tricyclic polyhydropyrido[1,2-a]indoles were efficiently constructed in good stereoselectivity (up to 92% ee, >19 : 1 dr).

  通过三烯胺催化手性仲胺探索了2-芳基-3 H-吲哚-3-酮和2,4-二烯的不对称正电子需求的氮杂-Diels-Alder环加成反应。多功能三环多氢吡啶并[1,2- a ]吲哚以良好的立体选择性（高达92％ee，> 19：1 dr）被有效地构建。
• An unusual intramolecular Diels–Alder approach toward maoecrystal V
  作者：Patrick Carberry、Dennis R. Viernes、Lydia B. Choi、Mark W. Fegley、John D. Chisholm

  DOI：10.1016/j.tetlet.2013.01.075

  日期：2013.3

  Intramolecular Diels–Alder reactions are commonly employed for the synthesis of polycyclic natural products, but the use of aldehydes as dienophiles is an underexplored facet of the intramolecular cycloaddition. The intramolecular nature of this reaction allowed the use of aldehydes as dienophiles without the use of highly activated dienes, as is often necessary for intermolecular Diels–Alder reactions

  分子内Diels–Alder反应通常用于合成多环天然产物，但使用醛作为亲二烯体是分子内环加成反应中一个未开发的方面。该反应的分子内性质允许使用醛作为亲二烯体而无需使用高度活化的二烯，这通常是与醛的分子间狄尔斯-阿尔德反应所必需的。利用这种新化学方法探索了合成毛晶V的合成途径。