3-methyl-5-dimethylphenylsilylisoxazole | 460095-29-8

• 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: 3-methyl-5-dimethylphenylsilylisoxazole
• 英文别名: Dimethyl-(3-methyl-1,2-oxazol-5-yl)-phenylsilane
• CAS: 460095-29-8
• 化学式: C₁₂H₁₅NOSi
• 分子量: 217.343
• InChiKey: AAKIKDUMRWTWMZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.81
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  26
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-methyl-5-dimethylphenylsilylisoxazole 在 氢气 、 镍 作用下， 以 乙醇 为溶剂， 20.0 ℃ 、2.76 MPa 条件下， 反应 24.0h， 生成 3-methyl-5-(dimethylphenylsilyl)-1-phenylpyrazole
  参考文献：
  名称：

  甲硅烷基化的β-烯胺酮作为甲硅烷基吡唑区域选择性合成的前体

  摘要：

  甲硅烷基β-烯胺酮是通过还原裂解5-甲硅烷基，3-，4-和5-甲硅烷基甲基异恶唑而合成的。这些在烯胺酮体系的各个位置带有不同甲硅烷基的通用合成子对3-位区域选择性合成非常感兴趣。或5-甲硅烷基吡唑和3-，4-或5-甲硅烷基甲基吡唑，它们可以作为杂环化学的基础。

  DOI：

  10.1016/j.tet.2005.10.001
• 作为产物：
  描述：

  1-dimethylphenylsilyl-2-trimethylsilylacetylene 在 三氯化铝 、 盐酸羟胺 、 sodium acetate 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 3-methyl-5-dimethylphenylsilylisoxazole
  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

文献信息

• Cycloisomerization of acetylenic oximes and hydrazones under gold catalysis: Synthesis and cytotoxic evaluation of isoxazoles and pyrazoles
  作者：J C JEYAVEERAN、CHANDRASEKAR PRAVEEN、Y ARUN、A A M PRINCE、P T PERUMAL

  DOI：10.1007/s12039-015-0993-9

  日期：2016.1

  The synthesis of substituted isoxazoles and pyrazoles through a general cycloisomerization methodology has been reported. The capability of gold(III) chloride to promote cycloisomerization of both α, β-acetylenic oximes and α, β-acetylenic hydrazones is the centrepiece of the strategy. A range of acetylenic precursors were investigated to afford 28 examples of the products with good to excellent chemical yields. Selected compounds were screened for their cytotoxic potential towards COLO320 cancer cell lines. The IC50 values of the tested compounds were in the micromolar range, with the best compound, 5-(6-Methoxy-naphthalen-2-yl)-3-phenyl-isoxazole (3h) displaying an IC50 of 38.9 μM. For this compound, the crystal structure in complex with Aurora-A kinase was obtained which revealed details of its binding mode within the active site with a free energy of binding -9.54 kcal/mol.

  通过一种通用的环异构化方法，已经报道了取代异恶唑和吡唑的合成。金(III)氯化物促进α,β-炔基肟和α,β-炔基脒的环异构化的能力是该策略的核心。研究了一系列炔基前体，以良好的至优秀的化学收率得到了28个产物实例。选定的化合物对COLO320癌细胞系的细胞毒性潜力进行了筛选。测试化合物的IC50值在微摩尔范围内，其中最佳化合物5-(6-甲氧基萘-2-基)-3-苯基异恶唑(3h)的IC50值为38.9 μM。对于该化合物，获得了与Aurora-A激酶复合的晶体结构，揭示了其在活性位点内的结合模式，结合自由能为-9.54 kcal/mol。
• Silylated β-enaminones as precursors in the regioselective synthesis of silyl pyrazoles
  作者：Mariola Calle、Luis A. Calvo、Alfonso González-Ortega、Ana M. González-Nogal

  DOI：10.1016/j.tet.2005.10.001

  日期：2006.1

  Silyl β-enaminones have been synthesized by reductive cleavage of 5-silyl, 3-, 4- and 5-silylmethylisoxazoles.These versatile synthons bearing different silyl groups in various positions of the enaminoketonic system are of great interest in the regioselective synthesis of 3- or 5-silylpyrazoles and 3-, 4- or 5-silylmethylpyrazoles, which can serve as building blocks in heterocyclic chemistry.

  甲硅烷基β-烯胺酮是通过还原裂解5-甲硅烷基，3-，4-和5-甲硅烷基甲基异恶唑而合成的。这些在烯胺酮体系的各个位置带有不同甲硅烷基的通用合成子对3-位区域选择性合成非常感兴趣。或5-甲硅烷基吡唑和3-，4-或5-甲硅烷基甲基吡唑，它们可以作为杂环化学的基础。
• Regiospecific synthesis of 5-silyl azoles
  作者：Purificación Cuadrado、Ana M González-Nogal、Raquel Valero

  DOI：10.1016/s0040-4020(02)00386-1

  日期：2002.6

  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.