toluene-4-sulfonic acid (4E)-hepta-4,6-dien-1-yl ester | 128845-45-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: toluene-4-sulfonic acid (4E)-hepta-4,6-dien-1-yl ester
• 英文别名: (E)-hepta-4,6-dien-1-yl4-methylbenzenesulfonate；(E)-hepta-4,6-dienyl 4-methylbenzenesulfonate；[(4E)-hepta-4,6-dienyl] 4-methylbenzenesulfonate
• CAS: 128845-45-4
• 化学式: C₁₄H₁₈O₃S
• 分子量: 266.361
• InChiKey: JNQDECVBLSFOQF-SNAWJCMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  18
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  toluene-4-sulfonic acid (4E)-hepta-4,6-dien-1-yl ester 在 lithium bromide 作用下， 以 丙酮 为溶剂， 反应 16.0h， 生成 (E)-7-bromohepta-1,3-diene
  参考文献：
  名称：

  Diastereoselective and Intramolecular Cycloadditions of Asymmetric P-Nitroso Phosphine Oxides

  摘要：

  Benzyl phenyl P-nitroso phosphine oxide (5) reacts as an N-O heterodienophile with 1,3-cyclopentadiene to give the diastereomeric cycloadducts 6a,b in a ratio of 1.5:1 (6a:6b). The same reaction in the presence of tin tetrachloride produces 6a,b in a ratio of 2.9:1 (6a:6b). Cycloaddition of the structurally modified P-nitroso phosphine oxide (18) with 1,3-cyclopentadiene forms the diastereomeric cycloadducts 16a,b in a ratio of 3.1:1 (16a:16b). These results suggest the reactions of these P-nitroso phosphine oxides and 1,3-cyclopentadiene occur through a transition state where the heterodienophile adopts an s-cis conformation and approaches the diene in an exo fashion syn to the phenyl group. This model resembles those proposed for the cycloadditions of the structurally similar asymmetric vinyl phosphine oxides. Reaction of 18 with 1,3-cyclopentadiene in the presence of a Lewis acid produces cycloadducts 16ab in a ratio of 7:1 (16a:16b), which approaches synthetic utility. Similar experiments show that 1,3-cyclohexadiene likely reacts with P-nitroso phosphine oxides through a different transition state, limiting current predictions regarding the diastereoselectivity of these reactions. The intramolecular cycloaddition of an asymmetric P-nitroso phosphine oxide (19) for the first time produces a unique phosphorus-containing heterocyclic compound (20).

  DOI：

  10.1021/jo0202839
• 作为产物：
  描述：

  (E)-4,6-庚二烯酸乙酯 在 三乙烯二胺 、 lithium aluminium tetrahydride 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 反应 97.25h， 生成 toluene-4-sulfonic acid (4E)-hepta-4,6-dien-1-yl ester
  参考文献：
  名称：

  Diastereoselective and Intramolecular Cycloadditions of Asymmetric P-Nitroso Phosphine Oxides

  摘要：

  Benzyl phenyl P-nitroso phosphine oxide (5) reacts as an N-O heterodienophile with 1,3-cyclopentadiene to give the diastereomeric cycloadducts 6a,b in a ratio of 1.5:1 (6a:6b). The same reaction in the presence of tin tetrachloride produces 6a,b in a ratio of 2.9:1 (6a:6b). Cycloaddition of the structurally modified P-nitroso phosphine oxide (18) with 1,3-cyclopentadiene forms the diastereomeric cycloadducts 16a,b in a ratio of 3.1:1 (16a:16b). These results suggest the reactions of these P-nitroso phosphine oxides and 1,3-cyclopentadiene occur through a transition state where the heterodienophile adopts an s-cis conformation and approaches the diene in an exo fashion syn to the phenyl group. This model resembles those proposed for the cycloadditions of the structurally similar asymmetric vinyl phosphine oxides. Reaction of 18 with 1,3-cyclopentadiene in the presence of a Lewis acid produces cycloadducts 16ab in a ratio of 7:1 (16a:16b), which approaches synthetic utility. Similar experiments show that 1,3-cyclohexadiene likely reacts with P-nitroso phosphine oxides through a different transition state, limiting current predictions regarding the diastereoselectivity of these reactions. The intramolecular cycloaddition of an asymmetric P-nitroso phosphine oxide (19) for the first time produces a unique phosphorus-containing heterocyclic compound (20).

  DOI：

  10.1021/jo0202839

文献信息

• Diastereoselective Three-Component 3,4-Amino Oxygenation of 1,3-Dienes Catalyzed by a Cationic Heptamethylindenyl Rhodium(III) Complex
  作者：Finn Burg、Tomislav Rovis

  DOI：10.1021/jacs.1c09276

  日期：2021.11.3

  tool to rapidly access β-amino alcohols–a privileged motif ubiquitous in natural products, pharmaceuticals and agrochemicals. Although a variety of expedient methods are established for simple alkenes, selective amino oxygenation of 1,3-dienes is less explored. Within this context, methods for the oxyamination of 1,3-dienes that are selective for the internal position remain unprecedented. We herein report

  烯烃的直接氧胺化是快速获得 β-氨基醇的有力工具，β-氨基醇是天然产物、药物和农用化学品中普遍存在的一种特殊基序。尽管针对简单烯烃建立了多种权宜之计，但对 1,3-二烯烃的选择性氨基氧化作用的探索较少。在这种情况下，对内部位置具有选择性的 1,3-二烯的氧胺化方法仍然是前所未有的。我们在此报告了一种模块化的三组分方法来执行由阳离子七甲基茚基 (Ind*) Rh(III) 配合物催化的 1,3-二烯的内部和高度非对映选择性氨基氧化。
• Palladium-Catalyzed Enantioselective Redox-Relay Heck Alkynylation of Alkenols To Access Propargylic Stereocenters
  作者：Zhi-Min Chen、Christine S. Nervig、Ryan J. DeLuca、Matthew S. Sigman

  DOI：10.1002/anie.201703089

  日期：2017.6.1

  An enantioselective redox-relay Heck alkynylation of di- and trisubstituted alkenols to construct propargylic stereocenters is disclosed using a new pyridine oxazoline ligand. This strategy allows direct access to chiral β-alkynyl carbonyl compounds employing allylic alcohol substrates in contrast to more traditional conjugate addition methods.

  使用新的吡啶恶唑啉配体公开了二和三取代的烯醇的对映选择性的氧化还原-继电器Heck炔基化以构建炔丙基立体中心。与更传统的共轭加成方法相比，该策略允许使用烯丙醇底物直接获得手性β-炔基羰基化合物。
• Intramolecular diels-alder reaction of iminothiol esters
  作者：Yoshinao Tamaru、Osamu Ishige、Shin-ichi Kawamura、Zen-ichi Yoshida

  DOI：10.1016/s0040-4039(01)91081-0

  日期：1984.1

  Diels-Alder reaction of dienyl α-methacrylthioimidates has been investigated under thermal or Lewis acid or protonic acid catalysed conditions. The utility of the reaction is shown by desulfurative ring contraction of bicyclo[4.4.0] to bicyclo[4.3.0]system.

  已经在热或路易斯酸或质子酸催化的条件下研究了二烯基α-甲基丙烯硫基亚氨酸二甲酯的Diels-Alder反应。该反应的效用由双环[4.4.0]到双环[4.3.0]系统的脱硫环收缩显示。
• Intramolecular Diels–Alder reactions of N-substituted oxazolones
  作者：Stephen Philip Fearnley、Eleonora Market

  DOI：10.1039/b110992h

  日期：2002.2.27

  The first intramolecular Diels–Alder reactions of simple trienes featuring an N-substituted oxazolone as the dienophilic component have been investigated and are reported herein.

  本文首次研究并报道了以 N-取代的噁唑酮为亲二烯组分的简单三烯分子内 DielsâAlder 反应。
• Diastereocontrol in Asymmetric Allyl–Allyl Cross-Coupling: Stereocontrolled Reaction of Prochiral Allylboronates with Prochiral Allyl Chlorides
  作者：Laura A. Brozek、Michael J. Ardolino、James P. Morken

  DOI：10.1021/ja2075967

  日期：2011.10.26

  Palladium-catalyzed allyl-ally cross-coupling was investigated with substituted prochiral allylic boronates. These reactions deliver products bearing adjacent stereocenters, and the issue of diastereocontrol is therefore paramount. Under appropriately modified conditions, this allyl allyl coupling strategy was found to apply to a range of substrates, generally occurring with high enantioselectivity (92:8 to >99:1 er) and good diastereoselection (4:1 to 14:1 dr).