(4-ethyloct-1-ynyl)trimethylsilane | 1188520-77-5

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (4-ethyloct-1-ynyl)trimethylsilane
• 英文别名: 4-ethyl-1-trimethylsilyl-1-octyne；4-Ethyloct-1-ynyl(trimethyl)silane
• CAS: 1188520-77-5
• 化学式: C₁₃H₂₆Si
• 分子量: 210.435
• InChiKey: NBVCMJPXXKAARZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.47
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.85
• 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：

  (4-ethyloct-1-ynyl)trimethylsilane 在 甲醇 、 potassium carbonate 作用下， 反应 4.0h， 以82%的产率得到4-ethyloct-1-yne
  参考文献：
  名称：

  Benzo[2,1-b ;3,4-b ′]dithiophene-based low-bandgap polymers for photovoltaic applications

  摘要：

  AbstractThe synthesis of four alternating copolymers using benzo[2,1‐b;3,4‐b′]dithiophene (BDP) as the common donor unit is presented. Before the synthesis, theoretical calculations that we performed predicted that the incorporation of BDP, which consists of fused dithiophene units with a benzene ring, into these polymers would produce a low‐lying highest occupied molecular orbital (HOMO) energy level. Low‐lying HOMO levels are desirable to produce high open circuit voltages (VOC) in organic bulk heterojunction (BHJ) photovoltaic devices. The polymers' structural characterization, as well as the preliminary results of their performance in BHJ devices, using (6,6)‐phenyl C61‐butyric acid methyl ester as the electron acceptor, is presented. The VOC values follow the expected trend: increasing with decreasing HOMO level of the polymer. High VOC values of 0.81 and 0.82 V have been obtained from two polymers: PBDPBT and PBDPDPP. The initial power conversion efficiency achieved in these unoptimized devices was 1.11% because of relatively low JSC values. The variation observed in the JSC values between the four polymers is discussed. Device performance is expected to increase with optimization of processing conditions for the devices. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011

  DOI：

  10.1002/pola.24481
• 作为产物：
  描述：

  (4-ethyl-3-methoxyoct-1-ynyl)trimethylsilane 在 正丁基锂 、 二氯二茂锆 、 盐酸 、 水 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 以70%的产率得到(4-ethyloct-1-ynyl)trimethylsilane
  参考文献：
  名称：

  烯丙基/炔丙基锆配合物的产生及随后的交叉偶联反应：多取代烯的简便合成

  摘要：

  炔丙基醚与Negishi试剂的β-醇盐消除反应在水解后会生成丙二烯和/或炔烃。产物的分布高度取决于起始炔丙基醚的取代方式。也就是说，芳基或烷基取代的炔丙基醚有利于丙二烯产物，而TMS取代的炔丙基醚则可提供炔烃。DFT计算显示，TMS组的大位阻效应和β效应均有利于炔烃产物，从而逆转了选择性。烯丙基/炔丙基锆中间体与芳基碘化物在Pd（PPh 3）4 / CuCl存在下的随后偶联反应为合成多取代的烯烯提供了一条直接途径。

  DOI：

  10.1021/jo9020419

文献信息

• Generation of Allenic/Propargylic Zirconium Complexes and Subsequent Cross-Coupling Reactions: A Facile Synthesis of Multisubstituted Allenes
  作者：Hao Zhang、Xiaoping Fu、Jingjin Chen、Erjuan Wang、Yuanhong Liu、Yuxue Li

  DOI：10.1021/jo9020419

  日期：2009.12.18

  The β-alkoxide elimination reaction of propargylic ether with Negishi reagent leads to allenes and/or alkynes after hydrolysis. The product distribution is highly dependent on the substitution pattern of starting propargylic ethers; that is, aryl- or alkyl-substituted propargylic ethers favor the allene products, whereas TMS-substituted propargylic ethers afford alkynes. DFT calculations revealed that

  炔丙基醚与Negishi试剂的β-醇盐消除反应在水解后会生成丙二烯和/或炔烃。产物的分布高度取决于起始炔丙基醚的取代方式。也就是说，芳基或烷基取代的炔丙基醚有利于丙二烯产物，而TMS取代的炔丙基醚则可提供炔烃。DFT计算显示，TMS组的大位阻效应和β效应均有利于炔烃产物，从而逆转了选择性。烯丙基/炔丙基锆中间体与芳基碘化物在Pd（PPh 3）4 / CuCl存在下的随后偶联反应为合成多取代的烯烯提供了一条直接途径。
• Benzo[2,1-<i>b</i> ;3,4-<i>b</i> ′]dithiophene-based low-bandgap polymers for photovoltaic applications
  作者：Mingjian Yuan、Andrew H. Rice、Christine K. Luscombe

  DOI：10.1002/pola.24481

  日期：2011.2.1

  AbstractThe synthesis of four alternating copolymers using benzo[2,1‐b;3,4‐b′]dithiophene (BDP) as the common donor unit is presented. Before the synthesis, theoretical calculations that we performed predicted that the incorporation of BDP, which consists of fused dithiophene units with a benzene ring, into these polymers would produce a low‐lying highest occupied molecular orbital (HOMO) energy level. Low‐lying HOMO levels are desirable to produce high open circuit voltages (VOC) in organic bulk heterojunction (BHJ) photovoltaic devices. The polymers' structural characterization, as well as the preliminary results of their performance in BHJ devices, using (6,6)‐phenyl C61‐butyric acid methyl ester as the electron acceptor, is presented. The VOC values follow the expected trend: increasing with decreasing HOMO level of the polymer. High VOC values of 0.81 and 0.82 V have been obtained from two polymers: PBDPBT and PBDPDPP. The initial power conversion efficiency achieved in these unoptimized devices was 1.11% because of relatively low JSC values. The variation observed in the JSC values between the four polymers is discussed. Device performance is expected to increase with optimization of processing conditions for the devices. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011