1-二甲基(2-吡啶基)甲硅烷基-2,2-二苯基乙烯 | 270589-02-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-二甲基(2-吡啶基)甲硅烷基-2,2-二苯基乙烯
• 英文名称: 1-dimethyl(2-pyridyl)silyl-2,2-diphenylethene
• 英文别名: 2-pyridyldimethyl(2,2-diphenylethenyl)silane；2,2-Diphenylethenyl-dimethyl-pyridin-2-ylsilane
• CAS: 270589-02-1
• 化学式: C₂₁H₂₁NSi
• 分子量: 315.49
• InChiKey: ZTSGYUKULPSDLM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.67
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-二甲基(2-吡啶基)甲硅烷基-2,2-二苯基乙烯 在 copper(l) iodide 、 cesium fluoride 作用下， 以 乙腈 为溶剂， 反应 3.0h， 以58%的产率得到1,1,4,4-甲苯基-1,3-丁二烯
  参考文献：
  名称：

  Stereoselective Synthesis of Multisubstituted Butadienes through Directed Mizoroki−Heck Reaction and Homocoupling Reaction of Vinyl(2-pyridyl)silane

  摘要：

  We have developed the homocoupling reaction of alkenyl(2-pyridyl)silanes mediated by Cul and CsF, in which the strong directing effect of the 2-pyridyl group was observed. The homocoupling reaction was successfully integrated with the Mizoroki-Heck reaction of vinyl(2-pyridyl)silane with aryl halides, enabling a rapid and stereoselective synthesis of multisubstituted butadienes. From a relatively small compound library, it was possible to detect a number of fluorescent butadienes with a wide range of fluorescence color variations (blue to reddish-orange).

  DOI：

  10.1021/ol048620i
• 作为产物：
  描述：

  2-三甲基硅基吡啶 在 正丁基锂 、 叔丁基锂 作用下， 以 乙醚 、 正己烷 、 正戊烷 为溶剂， 反应 1.5h， 生成 1-二甲基(2-吡啶基)甲硅烷基-2,2-二苯基乙烯
  参考文献：
  名称：

  [Bis(2-pyridyldimethylsilyl)methyl]lithium. New Reagent for the Stereoselective Synthesis of Vinylsilanes

  摘要：

  The generation of (2-PyMe2Si)(2)CHLi was easily accomplished by the deprotonation of (2-PyMe2Si)(2)CH2 using n-BuLi in Et2O. Thus generated (2-PyMe2Si)(2)CHLi was found to react with a variety of aldehydes and ketones to give the corresponding vinylsilanes in extremely high yields with complete stereoselectivities.

  DOI：

  10.1021/ol005735n

文献信息

• Facile generation of [bis(2-pyridyldimethylsilyl)methyl]lithium and its reaction with carbonyl compounds. New method for the stereoselective synthesis of vinylsilanes
  作者：Kenichiro Itami、Toshiki Nokami、Jun-ichi Yoshida

  DOI：10.1016/s0040-4020(01)00348-9

  日期：2001.6

  (2-PyMe2Si)2CHLi in Et2O-d10 revealed the coordination of both pyridyl groups to lithium. Thus generated (2-PyMe2Si)2CHLi was found to react with a variety of aldehydes and ketones to give the corresponding vinylsilanes in extremely high yields with complete stereoselectivities (>99% E).

  的产生（2- PyMe 2 Si）的2 CHLi容易被（2- PyMe的去质子化来实现2 Si）的2 CH 2使用Ñ在Et正丁基锂2 O的1（2- PyMe的H NMR分析2的Si ）Et 2 O- d 10中的2 CHLi显示两个吡啶基均与锂配位。发现由此生成的（2-PyMe 2 Si）2 CHLi与多种醛和酮反应，以极高的收率和完全的立体选择性（> 99％E）得到相应的乙烯基硅烷。
• Diversity-Oriented Synthesis of Multisubstituted Olefins through the Sequential Integration of Palladium-Catalyzed Cross-Coupling Reactions. 2-Pyridyldimethyl(vinyl)silane as a Versatile Platform for Olefin Synthesis
  作者：Kenichiro Itami、Toshiki Nokami、Yoji Ishimura、Koichi Mitsudo、Toshiyuki Kamei、Jun-ichi Yoshida

  DOI：10.1021/ja016790+

  日期：2001.11.1

  tetrabutylammonium fluoride to give di- and trisubstituted olefins in high yields. The sequential integration of Heck-type (or double Heck) coupling and Hiyama-type coupling produced the multisubstituted olefins in regioselective, stereoselective, and diversity-oriented fashions. Especially, the one-pot sequential Heck/Hiyama coupling reaction provides an extremely facile entry into a diverse range of stereodefined

  描述了一种多取代烯烃的面向多样性合成的新策略，其中 2-吡啶基二甲基（乙烯基）硅烷用作烯烃合成的通用平台。钯催化的 2-吡啶基二甲基（乙烯基）硅烷与有机碘化物的 Heck 型偶联发生在 Pd2(dba)3/三-2-呋喃基膦催化剂存在下，以优异的产率得到β-取代的乙烯基硅烷。即使使用 α 和 β 取代的 2-吡啶基二甲基（乙烯基）硅烷，也会发生 Heck 型偶联。2-吡啶基二甲基（乙烯基）硅烷与两种不同的芳基碘发生一锅双 Heck 偶联，以良好的产率提供 β, β-二芳基化乙烯基硅烷。钯催化的 2-吡啶基二甲基（乙烯基）硅烷与有机卤化物的 Hiyama 型偶联发生在四丁基氟化铵的存在下，以高产率得到二和三取代的烯烃。Heck 型（或双 Heck）偶联和 Hiyama 型偶联的顺序整合以区域选择性、立体选择性和面向多样性的方式产生了多取代烯烃。特别是，一锅顺序 Heck/Hiyama 偶联反应
• [Bis(2-pyridyldimethylsilyl)methyl]lithium. New Reagent for the Stereoselective Synthesis of Vinylsilanes
  作者：Kenichiro Itami、Toshiki Nokami、Jun-ichi Yoshida

  DOI：10.1021/ol005735n

  日期：2000.5.1

  The generation of (2-PyMe2Si)(2)CHLi was easily accomplished by the deprotonation of (2-PyMe2Si)(2)CH2 using n-BuLi in Et2O. Thus generated (2-PyMe2Si)(2)CHLi was found to react with a variety of aldehydes and ketones to give the corresponding vinylsilanes in extremely high yields with complete stereoselectivities.
• Stereoselective Synthesis of Multisubstituted Butadienes through Directed Mizoroki−Heck Reaction and Homocoupling Reaction of Vinyl(2-pyridyl)silane
  作者：Kenichiro Itami、Yousuke Ushiogi、Toshiki Nokami、Youichi Ohashi、Jun-ichi Yoshida

  DOI：10.1021/ol048620i

  日期：2004.10.1

  We have developed the homocoupling reaction of alkenyl(2-pyridyl)silanes mediated by Cul and CsF, in which the strong directing effect of the 2-pyridyl group was observed. The homocoupling reaction was successfully integrated with the Mizoroki-Heck reaction of vinyl(2-pyridyl)silane with aryl halides, enabling a rapid and stereoselective synthesis of multisubstituted butadienes. From a relatively small compound library, it was possible to detect a number of fluorescent butadienes with a wide range of fluorescence color variations (blue to reddish-orange).