desoxybenzoin trimethylsilyl ether | 72223-17-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: desoxybenzoin trimethylsilyl ether
• 英文别名: 1-trimethylsilyloxy-1,2-diphenylethylene；deoxybenzoin trimethylsilyl enol ether；1-trimethylsiloxy-1,2-diphenylethylene；((1,2-diphenylvinyl)oxy)trimethylsilane；Deoxybenzoin-trimethylsilylenolaether；alpha-Trimethylsiloxystilbene；1,2-diphenylethenoxy(trimethyl)silane
• CAS: 72223-17-7
• 化学式: C₁₇H₂₀OSi
• 分子量: 268.431
• InChiKey: PYQMBKPWEPUANG-UHFFFAOYSA-N

物化性质

• 沸点：
  314.7±21.0 °C(Predicted)
• 密度：
  1.003±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.04
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  desoxybenzoin trimethylsilyl ether 在 六氟磷酸锂 、 异丙苯酚 作用下， 以 四氢呋喃 为溶剂， 以44 %的产率得到1,2-diphenyl-1-(trimethylsilyl)ethanol
  参考文献：
  名称：

  [1,2]-硅烷烯醇化酯电化学还原诱导的 Retro-Brook 重排

  摘要：

  烷基芳基酮的三甲基硅烷醇酯的电化学还原诱导 Retro-Brook 重排，提供 1-芳基-1-三甲基甲硅烷烃-1-醇。转化通过以下序列进行：1） 甲硅烷醇化酯的单电子还原，2） 用苯酚质子化，3） 另一个单电子还原形成甲硅烷基取代的苄基阴离子，以及 4） 关键的 retro-Brook 重排。

  DOI：

  10.1093/bulcsj/uoae038
• 作为产物：
  描述：

  S-α-trimethylsilylbenzyl thiobenzoate 以 氘代苯 为溶剂， 反应 24.0h， 以93%的产率得到desoxybenzoin trimethylsilyl ether
  参考文献：
  名称：

  1,4-Silatropy of S-α-Silylbenzyl Thioesters:  A Convenient Route to Silyl Enol and Dienol Ethers Accompanied by C−C Bond Formation via Thiocarbonyl Ylides

  摘要：

  A novel convenient method for the generation of thiocarbonyl ylides from readily accessible starting materials and the first synthetic application of in situ generated ylides in the synthesis of silyl enol and dienol ethers, accompanied by C-C bond formation, is described. Under completely neutral conditions without any catalyst or additive, thermal reactions of S-alpha-silylbenzyl thioesters in sealed tubes at 180 degreesC provided silyl enol and dienol ethers in good to excellent yields with high stereoselectivities. This procedure consists of a multistep reaction in a one-pot process, i.e., 1,4-silatropy of S-alpha-silylbenzyl thioesters to give thiocarbonyl ylides, 1,3-electrocyclization of the ylides to give thiiranes, and the extrusion of sulfur from thiiranes to give silyl enol and dienol ethers.

  DOI：

  10.1021/jo026211z

文献信息

• Synthesis of α-Arylcarboxylic Acid Amides from Silyl Enol Ether via Migratory Amidation with 2-Azido-1,3-dimethylimidazolinium Hexafluorophosphate
  作者：Mitsuru Kitamura、Kento Murakami、Yuichiro Shiratake、Tatsuo Okauchi

  DOI：10.1246/cl.130195

  日期：2013.7.5

  α-Arylcarboxylic acid amides were synthesized by reacting silyl enol ethers of aryl ketones and 2-azido-1,3-dimethylimidazolinium hexafluorophosphate (ADMP, 1). Silyl enol ethers react with ADMP 1 to give N-(α-arylacyl)guanidines via the migration of aryl groups in enol ethers. The products were transformed to the corresponding α-aryl acetamides by treating with LiAlH4.

  α-芳基羧酰胺通过苯乙酮的硅醚与2-叠氮-1,3-二甲基咪唑六氟磷酸盐（ADMP，1）反应合成。硅醚与ADMP 1反应，通过烯醇醚中的芳基迁移生成N-(α-芳基酰基)胍。产物通过与LiAlH4处理转化为相应的α-芳基乙酰胺。
• Divergent Iron-Catalyzed Coupling of<i>O</i>-Acyloximes with Silyl Enol Ethers
  作者：Hai-Bin Yang、Nicklas Selander

  DOI：10.1002/chem.201605636

  日期：2017.2.3

  An iron‐catalyzed coupling reaction of O‐acyloximes and O‐benzoyl amidoximes with silyl enol ethers is reported. The protocol provides access to functionalized pyrroles, 1,6‐ketonitriles, pyrrolines and imidazolines via carbon‐centered radicals generated from an initially formed iminyl radical. The intramolecular cyclization and ring‐opening processes of the iminyl radical take place preferentially

  据报道，O-酰基肟和O-苯甲酰a肟与甲硅烷基烯醇醚的铁催化偶联反应。该协议提供了通过最初形成的亚胺基生成的碳中心基团来访问官能化的吡咯，1,6-酮腈，吡咯啉和咪唑啉的途径。亚胺基的分子内环化和开环过程优先于通过1,3-氢转移进行的反应，从而提供了对肟催化的铁催化反应的见解。廉价且环保的铁催化剂，广泛的底物范围和官能团的相容性使该方案可用于合成有价值的含氮产物。
• Carbon-Carbon Bond Formation by the Use of Chloroiodomethane as a C₁Unit. III. A Convenient Synthesis of the Mannich Base from Enol Silyl Ether by a Combination of Chloroiodomethane and<i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-Tetramethylmethanediamine
  作者：Sotaro Miyano、Hiroshi Hokari、Harukichi Hashimoto

  DOI：10.1246/bcsj.55.534

  日期：1982.2

  a combination of chloroiodomethane (CH2ClI) and N,N,N′,N′-tetramethylmethanediamine (TMMD) in DMSO as the solvent at ambient temperature. The mechanism of the transformation is discussed on the basis of product analysis and 1H NMR spectral studies. The reagent system CH2ClI/TMMD also provides a convenient route to the Eschenmoser’s salt (Me2\overset+N=CH2,\overset−I).

  羰基化合物的曼尼希二甲氨基甲基化可方便地通过烯醇三甲基甲硅烷基醚通过氯碘甲烷 (CH2ClI) 和 N,N,N',N'-四甲基甲二胺 (TMMD) 在 DMSO 作为溶剂在环境温度下进行。在产物分析和 1 H NMR 光谱研究的基础上讨论了转化机制。试剂系统 /TMMD 还提供了一个方便的路线到 Eschenmoser 盐 (Me2\overset+N=CH2,\overset-I)。
• Bench‐Stable Electrophilic Fluorinating Reagents for Highly Selective Mono‐ and Difluorination of Silyl Enol Ethers
  作者：Akiya Adachi、Kohsuke Aikawa、Yuichiro Ishibashi、Kyoko Nozaki、Takashi Okazoe

  DOI：10.1002/chem.202101499

  日期：2021.8.16

  the synthesis of fluorinated compounds have been intensively studied, recently. Development of practical fluorinating reagents is indispensable for this purpose. Herein, bench-stable electrophilic fluorinating reagents were synthesized as N-fluorobenzenesulfonimide (NFSI) substitutes. Reagents obtained by replacing one of the NFSI sulfonyl groups with an acyl group led to the highly selective monofluorination

  最近，人们对合成含氟化合物的有效方法进行了深入研究。为此，开发实用的氟化试剂是必不可少的。在此，工作台稳定的亲电子氟化试剂被合成为N-氟苯磺酰亚胺(NFSI) 替代品。通过用酰基取代 NFSI 磺酰基之一获得的试剂导致甲硅烷基烯醇醚的高度选择性单氟化，同时抑制了不希望的过度反应，即二氟化。另一方面，在 NFSI 苯磺酰基上带有吸电子取代基的试剂在无碱条件下有效地促进了甲硅烷基烯醇醚的二氟化。因此，单氟化和二氟化靶材料均由同一基材制备。
• Halogenative Difluorohomologation of Ketones
  作者：Oleg V. Fedorov、Mikhail D. Kosobokov、Vitalij V. Levin、Marina I. Struchkova、Alexander D. Dilman

  DOI：10.1021/acs.joc.5b00904

  日期：2015.6.5

  involves silylation, difluorocarbene addition using Me3SiCF2Br activated by a bromide ion, and halogenation of intermediate cyclopropanes with N-bromo- or N-iodosuccinimide. The whole process is performed without isolation of intermediates. The resulting α,α-difluoro-β-halo-substituted ketones can be readily converted into fluorine containing pyrazole derivatives and oxetanes.

  描述了一种方法，对酮进行二氟同构并伴有CH键的卤化。该反应包括甲硅烷基化，使用被溴离子激活的Me 3 SiCF 2 Br加成二氟卡宾，以及用N-溴或N-碘代琥珀酰亚胺卤化中间环丙烷。整个过程无需分离中间体。所得的α，α-二氟-β-卤代酮可容易地转化为含氟的吡唑衍生物和氧杂环丁烷。