4-tert-butyldiphenylsilyl-3-butyn-2-one | 460095-28-7

• 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-tert-butyldiphenylsilyl-3-butyn-2-one
• 英文别名: 4-(tert-butyldiphenylsilyl)but-3-yn-2-one；4-[Tert-butyl(diphenyl)silyl]but-3-yn-2-one
• CAS: 460095-28-7
• 化学式: C₂₀H₂₂OSi
• 分子量: 306.48
• InChiKey: DFCHTWOOUUNOCC-UHFFFAOYSA-N

物化性质

• 沸点：
  377.4±15.0 °C(Predicted)
• 密度：
  1.03±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.18
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-tert-butyldiphenylsilyl-3-butyn-2-one 在 肼 作用下， 以 乙醇 为溶剂， 以79%的产率得到4-tert-butyldiphenylsilyl-3-butyn-2-one hydrazone
  参考文献：
  名称：

  Regiospecific synthesis of 5-silyl azoles

  摘要：

  5-Silylisoxazoles bearing other silyl groups different to the more usual trimethylsilyl have been prepared by condensation of silylalkynones with hydroxylamine hydrochloride. The reaction with hydrazines is more complex and leads to 5-silylpyrazoles or the corresponding hydrazones, which can be cyclized by reaction with electrophiles. This has allowed us to synthesize 5-silylpyrazoles functionalized at C-4 by groups impossible to introduce by electrophilic substitution of the pyrazole nucleus. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(02)00386-1
• 作为产物：
  描述：

  叔丁基二苯基氯硅烷 在 manganese(IV) oxide 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 20.0h， 生成 4-tert-butyldiphenylsilyl-3-butyn-2-one
  参考文献：
  名称：

  通过2-丙醇介导的乙酸烯丙酯的还原偶联对苯乙炔酮的对映选择性铱催化的烯丙基化：Pladienolide D的C14-C23。

  摘要：

  乙酸烯丙酯与炔酮的高度对映选择性催化还原偶联在脂肪族或芳香族酮的存在下以化学选择性方式发生。该方法被用于以先前所需步骤的一半来构建普拉二烯内酯D的C14-C23。

  DOI：

  10.1002/anie.201908939

文献信息

• Enantioselective Cyanosilylation of Alkynyl Ketones Catalyzed by Combined Systems Consisting of Chiral Ruthenium(II) Complex and Lithium Phenoxide
  作者：Takeshi Ohkuma、Nobuhito Kurono、Yusuke Sakaguchi、Kohei Yamauchi、Taiga Yurino

  DOI：10.1002/adsc.201701593

  日期：2018.4.3

  Asymmetric cyanosilylation of alkynyl ketones with the catalyst systems consisting of amino acid/2,2′‐bis(diphenylphosphino)‐1,1′‐binaphthyl (BINAP)/ruthenium(II) complex and lithium phenoxide (Ru⋅Li cat.) was studied. The reaction was conducted in tert‐butyl methyl ether (TBME) at −78 °C with a substrate‐to‐catalyst molar ratio (S/C) as high as 2000. A series of simple and functionalized ketones was converted

  炔基酮与氨基酸/ 2,2'-双（二苯基膦基）-1,1'-联萘（BINAP）/钌（II）配合物和苯氧基锂（Ru⋅Licat。）组成的催化剂体系的不对称氰基硅烷化研究过。该反应在−78°C的叔丁基甲基醚（TBME）中进行，底物与催化剂的摩尔比（S / C）高达2000。一系列简单且功能化的酮转化为炔基叔丁基氰醇衍生物含量高达ee的99％。根据基板结构的催化剂的氨基酸配体的适当的选择是极其重要的，以实现高对映选择性和底物的范围广。还检查了手性氰醇产物向官能化内酯的转化。
• Improved Method for the Synthesis of β-Carbonyl Silyl-1,3-Dithianes by the Double Conjugate Addition of 1,3-Dithiol to Propargylic Carbonyl Compounds
  作者：Sumit Mukherjee、Dimitra Kontokosta、Aditi Patil、Sivakumar Rallapalli、Daesung Lee

  DOI：10.1021/jo901950e

  日期：2009.12.4

  Base-mediated double Conjugate addition of 1,3-propane dithiol to various silylated propargylic aldehydes and ketones allows for an efficient and scalable synthesis of beta-carbonyl silyl-1,3-dithianes.
• Asymmetric Hydrogenation of Alkynyl Ketones with the η⁶-Arene/TsDPEN–Ruthenium(II) Catalyst
  作者：Noriyoshi Arai、Hironori Satoh、Noriyuki Utsumi、Kunihiko Murata、Kunihiko Tsutsumi、Takeshi Ohkuma

  DOI：10.1021/ol4012184

  日期：2013.6.21

  Enantioselective hydrogenation of alkynyl ketones catalyzed by Ru(OTf)(TsDPEN)(eta(6)-p-cymene) (TsDPEN = N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine) affords the propargylic alcohols in up to 97% ee. The alkynyl moieties are left intact In most cases. The reaction can be conducted with a substrate-to-catalyst molar ratio as high as 5000 under 10 atm of H-2. The mode of enantioselection is elucidated with the transition state models directed by the CH/pi attractive interaction between the substrate and the catalytic species.