6-ethyl-1,4-dimethoxynaphthalene | 134838-08-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 6-ethyl-1,4-dimethoxynaphthalene
• CAS: 134838-08-7
• 化学式: C₁₄H₁₆O₂
• 分子量: 216.28
• InChiKey: YAMWUDDBVIKBAY-UHFFFAOYSA-N

物化性质

• 沸点：
  347.6±22.0 °C(Predicted)
• 密度：
  1.058±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  6-ethyl-1,4-dimethoxynaphthalene 在 ammonium cerium(IV) nitrate 作用下， 以 水 、 乙腈 为溶剂， 反应 0.25h， 以90%的产率得到6-乙基萘-1,4-二酮
  参考文献：
  名称：

  Protein tyrosine kinase inhibitory properties of planar polycyclics obtained from the marine sponge Xestospongia cf. carbonaria and from total synthesis

  摘要：

  Nine related polycyclic quinones and hydroquinones of the halenaquinone class were isolated from two Indo-Pacific collections of the sponge Xestospongia cf. carbonaria. The halenaquinone family appears not to be of polyketide origin but can be biogenetically derived by the union of a sesquiterpene and a quinone. Four new metabolites were characterized including tetrahydrohalenaquinone B (8a), 14-methoxyhalenaquinone (9), xestoquinolide A (10), and xestoquinolide B (11). These were accompanied by five known compounds, halenaquinone (3), halenaquinol (4), halenaquinol sulfate (5), xestoquinone (6), and tetrahydrohalenaquinone A (7a). The new structures were established from 2D NMR data, and the absolute stereochemistry of the chiral centers in 7 and 8 was determined by the formation of 7b and 7c, the bis esters of O-methylmandelic acid. A series of polycyclic models of natural products 3 and 6 were synthesized and included 16-23. The more complex members of this group were assembled via a 4 + 2 cycloaddition between an o-quinodimethane and a functionalized enone. The marine natural products plus two known fungal metabolites, viridin (13) and wortmannin (14), along with halenaquinone synthetic model compounds, were each tested for their ability to inhibit the activity of pp60v-src protein tyrosine kinase (PTK). Halenaquinone and 14-methoxyhalenaquinone were the most potent with IC50 values <10 muM. The other compounds were either less potent or inactive, and a rationalization for this SAR (structure activity relationship) pattern is presented.

  DOI：

  10.1021/jo00070a023
• 作为产物：
  描述：

  2-acetyl-5,8-dimethoxy-naphthalene 在 palladium on activated charcoal 盐酸 、 氢气 作用下， 以 乙醇 为溶剂， 生成 6-ethyl-1,4-dimethoxynaphthalene
  参考文献：
  名称：

  Protein tyrosine kinase inhibitory properties of planar polycyclics obtained from the marine sponge Xestospongia cf. carbonaria and from total synthesis

  摘要：

  Nine related polycyclic quinones and hydroquinones of the halenaquinone class were isolated from two Indo-Pacific collections of the sponge Xestospongia cf. carbonaria. The halenaquinone family appears not to be of polyketide origin but can be biogenetically derived by the union of a sesquiterpene and a quinone. Four new metabolites were characterized including tetrahydrohalenaquinone B (8a), 14-methoxyhalenaquinone (9), xestoquinolide A (10), and xestoquinolide B (11). These were accompanied by five known compounds, halenaquinone (3), halenaquinol (4), halenaquinol sulfate (5), xestoquinone (6), and tetrahydrohalenaquinone A (7a). The new structures were established from 2D NMR data, and the absolute stereochemistry of the chiral centers in 7 and 8 was determined by the formation of 7b and 7c, the bis esters of O-methylmandelic acid. A series of polycyclic models of natural products 3 and 6 were synthesized and included 16-23. The more complex members of this group were assembled via a 4 + 2 cycloaddition between an o-quinodimethane and a functionalized enone. The marine natural products plus two known fungal metabolites, viridin (13) and wortmannin (14), along with halenaquinone synthetic model compounds, were each tested for their ability to inhibit the activity of pp60v-src protein tyrosine kinase (PTK). Halenaquinone and 14-methoxyhalenaquinone were the most potent with IC50 values <10 muM. The other compounds were either less potent or inactive, and a rationalization for this SAR (structure activity relationship) pattern is presented.

  DOI：

  10.1021/jo00070a023

文献信息

• Copper-Catalyzed Asymmetric Ring-Opening Reaction of Oxabenzonorbornadienes with Grignard and Aluminum Reagents
  作者：Alexandre Alexakis、Renaud Millet、Ludovic Gremaud、Tania Bernardez、Laëtitia Palais

  DOI：10.1055/s-0029-1216838

  日期：2009.6

  A highly enantioselective method for the copper-catalyzed desymmetrization of oxabenzonorbornadienes with aluminum reagents and SimplePhos as chiral ligand has been developed. The same reaction with Grignard reagents is also reported. A wide range of alkyl chains have been used with moderate to high enantio­selectivity and high trans selectivity. The transfer of a methyl group is also reported with

  已经开发了一种高度对映选择性的方法，该方法通过铝试剂和SimplePhos作为手性配体，对铜进行草酰苯并降冰片二烯的脱对称反应。还报道了与格氏试剂的相同反应。广泛使用的烷基链具有中等至高对映选择性和高反式选择性。还报道了甲基的转移，其对映体和非对映体过量，并且对于不同的底物，产率很高。最后，我们已经能够执行第一跨与芳基oxabenzonorbornadienes的对映选择性desymmetrization。 铜催化-不对称转化-格氏试剂-铝试剂-SimplePhos
• GILES, ROBIN G. F.;GREEN, IVAN R., S. AFR. J. CHEM., 43,(1990) N-4, C. 91-95
  作者：GILES, ROBIN G. F.、GREEN, IVAN R.

  DOI：——

  日期：——