((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)benzene | 405506-90-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: ((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)benzene
• 英文别名: (3E,7E)-(4,8,12-trimethyltrideca-3,7,11-trienyl)benzene；(3E,7E)-4,8,12-trimethyl-1-phenyl-3,7,11-tridecatriene；homofarnesyl benzene；[(3E,7E)-4,8,12-trimethyl-3,7,11-tridecatrienyl]benzene；[(3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl]benzene
• CAS: 405506-90-3
• 化学式: C₂₂H₃₂
• 分子量: 296.496
• InChiKey: TZOZHRMRFUDSIV-RSKMIKRQSA-N

物化性质

• 沸点：
  406.3±40.0 °C(Predicted)
• 密度：
  0.888±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.9
• 重原子数：
  22
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  ((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)benzene 在 IDSI 、 甲烷磺酸 作用下， 以 硝基甲烷 为溶剂， 反应 1.08h， 以60%的产率得到
  参考文献：
  名称：

  用于直接卤化多烯环化的简单试剂

  摘要：

  尽管有许多试剂组合可以引发多烯环化，但尚未证明简单的亲电子卤素源作为此类过程的促进剂广泛有效。本文描述了一类易于制备且稳定的试剂，能够对源自香叶醇、法呢醇和橙花醇的各种富电子和缺电子萜烯进行此类转化，从而能够有效合成多种复杂的氯- 、含溴和含碘的多环骨架。迄今为止的努力已导致抗 HIV 天然产物 Peyssonol A 的第一个外消旋实验室全合成和结构修订，以及 peyssonoic acid A 的有效和简洁的首次全合成。他们还允许正式的外消旋全合成 aplysin- 20、萝莉莉德、K-76、和 Stemodin 将通过通常比以前的努力更短、产量更高且更具环保意识的途径来实现。还描述了使用该试剂类的手性形式进行对映选择性烯烃卤化的初步尝试。

  DOI：

  10.1021/ja106813s
• 作为产物：
  描述：

  反,反-西基乙酸 、 苄基溴化镁 在 dilithium tetrachlorocuprate 作用下， 以 四氢呋喃 为溶剂， 反应 2.33h， 以85%的产率得到((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)benzene
  参考文献：
  名称：

  Highly Enantioselective Proton-Initiated Polycyclization of Polyenes

  摘要：

  This report describes the synthesis of a range of chiral polycyclic molecules (tricyclic to pentacyclic) from achiral polyene precursors by enantio-selective proton-initiated polycyclization promoted by the 11 complex of o,o'-dichloro-BINOL and SbCl5. Excellent yields (ca. 90% per ring formed) and enantioselectivety (20:1 to 50:1) were obtained. The process is practical as well as efficient, because the chiral ligand is both readily prepared from R,R- or S,S-BINOL and easily recovered from the reaction mixture by extraction.

  DOI：

  10.1021/ja305851h

文献信息

• Et₂SBr⋅SbCl₅Br: An Effective Reagent for Direct Bromonium-Induced Polyene Cyclizations
  作者：Scott A. Snyder、Daniel S. Treitler

  DOI：10.1002/anie.200903834

  日期：2009.10.5

  It's all about reactivity: Although bromonium‐induced cation–π cyclizations are commonly utilized by nature to fashion six‐membered rings from a diverse set of polyene precursors, no general laboratory method exists that can achieve the same breadth of substrate scope. An easily synthesized and handled reagent is described (see scheme) that is capable of directly, broadly, and rapidly effecting such

  一切都与反应性有关：尽管自然界通常使用溴诱导的阳离子-π环化反应从多种多烯前体中形成六元环，但尚无通用的实验室方法可达到相同的底物范围。描述了一种易于合成和处理的试剂（参见方案），该试剂能够与多种香叶醇，法尼醇和神经醇衍生物直接，广泛且快速地以良好收率进行此类反应。
• Regioselective Palladium-Catalyzed Alkylation of Allylic Halides with Benzylic Grignard Reagents. Two-Step Synthesis of Abietane Terpenes and Tetracyclic Polyprenoid Compounds
  作者：Viale Rosales、Jorge L. Zambrano、Martin Demuth

  DOI：10.1021/jo010786z

  日期：2002.2.1

  A highly regioselective palladium-catalyzed alpha-alkylation of allylic bromides 1a,c-e and chloride 1b with substituted and unsubstituted benzylic Grignard reagents is reported. The resulting all-trans polyenehomobenzene derivatives were obtained in excellent yields and regioselectivity. These products were easily converted to abietane-type diterpenes (10-12) and tetracyclic polyprenoid compounds

  据报道，用取代的和未取代的苄基格氏试剂对烯丙基溴1a，ce和氯化物1b进行高度区域选择性的钯催化的α-烷基化。以优异的产率和区域选择性获得了所得的全反式多烯高苯衍生物。通过路易斯酸促进的级联多烯环化反应，这些产物很容易转化为松果油型二萜（10-12）和四环聚戊二烯化合物（13、14）。
• Enantioselective Cationic Polyene Cyclization vs Enantioselective Intramolecular Carbonyl−Ene Reaction
  作者：Yu-Jun Zhao、Bin Li、Li-Jun Serena Tan、Zhi-Liang Shen、Teck-Peng Loh

  DOI：10.1021/ja104119j

  日期：2010.8.4

  This paper describes highly efficient catalytic enantioselective cationic polyene cyclization and catalytic enantioselective intramolecular carbonyl-ene reaction in good to high yields with high enantioselectivities. The intimate relationship and mechanistic differences between the two enantioselective reactions were studied in detail. In addition, the cyclization products are versatile and useful building

  本文描述了高效催化对映选择性阳离子多烯环化和催化对映选择性分子内羰基-烯反应，产率高，对映选择性高。详细研究了两种对映选择性反应之间的密切关系和机理差异。此外，环化产物是天然产物和药物合成的通用且有用的构件。
• Chemodivergent, Tunable, and Selective Iodine(III)-Mediated Bromo-Functionalizations of Polyprenoids
  作者：Tatyana D. Grayfer、Pascal Retailleau、Robert H. Dodd、Joëlle Dubois、Kevin Cariou

  DOI：10.1021/acs.orglett.7b02125

  日期：2017.9.15

  Mild oxidation of bromides by iodine(III) reagents generated active electrophilic bromination species that were reacted with polyprenoids. By simple and minor variations of an I(III)/Br combination, the reactivity could be selectively steered toward dibromination, oxybromination, or bromocyclization, giving access to a wide array of brominated motifs.

  碘（III）试剂对溴化物的轻度氧化产生了活性的亲电子溴化物质，该物质与聚异戊二烯反应。通过对I（III）/ Br组合进行简单和较小的变化，可以选择性地将反应性转向二溴化，氧溴化或溴环化，从而获得广泛的溴化基序。
• Bio-inspired polyene cyclization: synthesis of tetracyclic terpenoids promoted by steroidal acetal–SnCl4
  作者：Yu-Jun Zhao、Teck-Peng Loh

  DOI：10.1039/b714474a

  日期：——

  This communication describes a highly efficient intermolecular polyene cyclization method using steroidal acetals as the initiators to synthesize tetracyclic terpenoids; both good yields and good asymmetric induction were obtained.

  这篇通讯介绍了一种高效的分子间多烯环化方法，该方法使用甾体乙缩醛作为引发剂合成四环萜类化合物，获得了良好的产率和不对称诱导。