[6-(4-t-butylphenyl)-1,3,5-hexatriynyl]trimethylsilane | 501072-60-2

• 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: [6-(4-t-butylphenyl)-1,3,5-hexatriynyl]trimethylsilane
• 英文别名: Silane, [6-[4-(1,1-dimethylethyl)phenyl]-1,3,5-hexatriynyl]trimethyl-；6-(4-tert-butylphenyl)hexa-1,3,5-triynyl-trimethylsilane
• CAS: 501072-60-2
• 化学式: C₁₉H₂₂Si
• 分子量: 278.469
• InChiKey: RBRAFQLPNSKIAL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.22
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.37
• 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：

  [6-(4-t-butylphenyl)-1,3,5-hexatriynyl]trimethylsilane 在 甲醇 、 正丁基锂 、 potassium carbonate 作用下， 以 四氢呋喃 、 正己烷 、 甲苯 为溶剂， 反应 0.5h， 生成 7-(4-tert-butylphenyl)-1-cyclohexylhepta-2,4,6-triyn-1-ol
  参考文献：
  名称：

  Chiral Propargyl Alcohols via the Enantioselective Addition of Terminal Di- and Triynes to Aldehydes

  摘要：

  The enantioselective addition of di- and triynes to aldehydes is presented, including the first examples of an asymmetric triyne addition. Modification of the Carreira alkynylation protocol shows that addition of diynes and triynes to alpha-branched aldehydes can be complete in as little as 4 h, and these reactions give good yields and enantioselectivities (up to 98% ee) for di- and triynes tested (aryl, alkyl, and silyl). It is shown for two cases (20 and 24) that products of this asymmetric addition reaction can undergo further manipulation (desilylation and triazole formation) without affecting the enantiopurity.

  DOI：

  10.1021/jo2008719
• 作为产物：
  描述：

  1,4-双(三甲硅基)-1,3-丁二炔 在 aluminum (III) chloride 、 正丁基锂 、 四溴化碳 、 三苯基膦 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 生成 [6-(4-t-butylphenyl)-1,3,5-hexatriynyl]trimethylsilane
  参考文献：
  名称：

  Chiral Propargyl Alcohols via the Enantioselective Addition of Terminal Di- and Triynes to Aldehydes

  摘要：

  The enantioselective addition of di- and triynes to aldehydes is presented, including the first examples of an asymmetric triyne addition. Modification of the Carreira alkynylation protocol shows that addition of diynes and triynes to alpha-branched aldehydes can be complete in as little as 4 h, and these reactions give good yields and enantioselectivities (up to 98% ee) for di- and triynes tested (aryl, alkyl, and silyl). It is shown for two cases (20 and 24) that products of this asymmetric addition reaction can undergo further manipulation (desilylation and triazole formation) without affecting the enantiopurity.

  DOI：

  10.1021/jo2008719

文献信息

• Synthesis of Unsymmetrically Substituted 1,3-Butadiynes and 1,3,5-Hexatriynes via Alkylidene Carbenoid Rearrangements
  作者：Annabelle L. K. Shi Shun、Erin T. Chernick、Sara Eisler、Rik R. Tykwinski

  DOI：10.1021/jo026481h

  日期：2003.2.1

  Unsymmetrically substituted 1,3-butadiynes and 1,3,5-hexatriynes are synthesized in four steps from commercially available aldehydes or carboxylic acids. The key step in this process involves a Fritsch-Buttenberg-Wiechell rearrangement, in which an alkylidene carbenoid intermediate subsequently rearranges to the desired polyyne. This rearrangement proceeds under mild conditions, and it is tolerant

  不对称取代的1,3-丁二炔和1,3,5-己三炔由市售的醛或羧酸分四个步骤合成。该过程中的关键步骤涉及Fritsch-Buttenberg-Wiechell重排，其中亚烷基类胡萝卜素中间体随后重排为所需的多炔。这种重排在温和的条件下进行，并且可以耐受一系列功能。通常，在程序上容易形成二溴代烯烃前体，再加上重排步骤的有效性，使得该方法成为利用钯或铜催化的传统的二炔和三炔合成方法的有吸引力的替代方法。
• Regioselective Trapping of Terminal Di-, Tri-, and Tetraynes with Benzyl Azide
  作者：Thanh Luu、Robert McDonald、Rik R. Tykwinski

  DOI：10.1021/ol062522a

  日期：2006.12.1

  The reaction of benzyl azide with terminal di-, tri-, and tetraynes appended with a range of functional groups has been explored. Standard reaction conditions for BnN3 catalyzed by CuSO(4)(.)5H(2)O gave alkynyl, butadiynyl, and hexatriynyl triazoles in moderate to good yields. The reaction proceeds regioselectively as determined by the X-ray crystallographic analysis of three derivatives (1c, 1d, and 3c), and no evidence of multiple azide addition to the polyyne framework is observed.
• Synthesis, Structure, and Nonlinear Optical Properties of Diarylpolyynes
  作者：Thanh Luu、Erin Elliott、Aaron D. Slepkov、Sara Eisler、Robert McDonald、Frank A. Hegmann、Rik R. Tykwinski

  DOI：10.1021/ol047931q

  日期：2005.1.1

  A series of alpha,omega-diarylpolyynes has been synthesized. In addition to the synthesis of three hexaynes (3a-c), a notably improved synthesis of 1,16-diphenylhexadecaoctayne (5) is described. The third-order nonlinear optical characteristics for these molecules have been studied and show a substantial increase in molecular hyperpolarizability (gamma) as a function of increasing length. The unusual solid-state structures of compounds 3a and 3b are reported.
• Reactions of Terminal Polyynes with Benzyl Azide
  作者：Thanh Luu、Boris J. Medos、Erin R. Graham、Danielle M. Vallee、Robert McDonald、Michael J. Ferguson、Rik R. Tykwinski

  DOI：10.1021/jo101870y

  日期：2010.12.17

  Terminal di-, tri-, tetra-, and pentaynes substituted with a variety of functional groups react with benzyl azide in the presence of CuSO4 center dot 5H(2)O and ascorbic acid to give derivatives of 4-ethynyl-, 4-butadiynyl-, 4-hexatriynyl-, and 4-octatetraynyl-,2,3-triazoles in moderate to good yields. These reactions appear to proceed regioselectively, and functionalization occurs exclusively at the terminal alkyne moiety. As well, no evidence of multiple azide additions to the polyyne framework is observed. X-ray crystallographic analysis of nine derivatives is used to document the regioselectivity of the reaction as well as outline structural characteristics of the 1,2,3-triazole products.