3-methyl-1,4-dioxo-1,4-dihydro-[2]naphthoic acid ethyl ester | 68749-79-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 3-methyl-1,4-dioxo-1,4-dihydro-[2]naphthoic acid ethyl ester
• 英文别名: 3-Methyl-1,4-dioxo-1,4-dihydro-[2]naphthoesaeure-aethylester；Ethyl 3-methyl-1,4-dioxonaphthalene-2-carboxylate
• CAS: 68749-79-1
• 化学式: C₁₄H₁₂O₄
• 分子量: 244.247
• InChiKey: ATHMKGVYERWOHB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  60.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  在 manganese(IV) oxide 、 四丁基氟化铵 、 间氯过氧苯甲酸 、 三氟乙酸酐 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 水 为溶剂， 反应 7.67h， 生成 3-methyl-1,4-dioxo-1,4-dihydro-[2]naphthoic acid ethyl ester
  参考文献：
  名称：

  Novel ipso-Substitution of p-Sulfinylphenols through the Pummerer-Type Reaction:  A Selective and Efficient Synthesis of p-Quinones and Protected p-Dihydroquinones

  摘要：

  The treatment of p-sulfinylphenols 3a-q with trifluoroacetic anhydride caused a Pummerer-type reaction on aromatic rings and concomitant desulfurization to give mixtures of the corresponding p-dihydroquinones 9 and p-quinones 10, which were subsequently oxidized under mild conditions to provide high yields of p-quinones 10. On the other hand, the treatment of p-(phenylsulfinyl)-phenyl ethers 6 with trifluoroacetic anhydride in the presence of styrene caused the direct ipso-substitution of the sulfinyl groups into trifluoroacetoxy groups, giving the protected dihydroquinones 14 in high yields. Both types of reactions were generally completed below room temperature within 1 h and compatible with various functional groups such as the allyl, carbonyl, ester, amide, and silyloxy groups. The preparation of the p-sulfinylphenols 3 and the silyl ethers 6 is also described through p-specific thiocyanation of phenols followed by the Grignard reaction and oxidation.

  DOI：

  10.1021/jo970418o

文献信息

• An Annulation Reaction to Naphthalene-1,4-diols Using Dimethyl Phthalide-3-phosphonates.
  作者：Mitsuaki WATANABE、Hitoshi MORIMOTO、Kayoko NOGAMI、Saori IJICHI、Sunao FURUKAWA

  DOI：10.1248/cpb.41.968

  日期：——

  A regioselective annulation to naphthalene ring systems from dimethyl phthalide-3-phosphonates and electron-deficient olefins is described.

  描述了一种从二甲基苯二酸酯-3-膦酸酯和电子缺乏的烯烃中选择性合成萘环体系的区域选择性环化反应。
• The development of an organotransition metal synthesis of quinones
  作者：Lenny S. Liebeskind、Sherrol L. Baysdon、Michael S. South、Suresh Iyer、James P. Leeds

  DOI：10.1016/s0040-4020(01)91423-1

  日期：1985.1

  A new and very general synthesis of quinones is described from conception to the current state of maturity. The chemistry relies on a convergent joining of a transition metal complex and an alkyne to provide benzoquinones (from maleoylmetal complexes) and naphthoquinones (from phthaloylmetal complexes). Significant aspects of this chemistry are its generality (terminal, internal, electron rich, and

  从概念到目前的成熟状态，描述了一种新的，非常通用的醌合成方法。化学过程依赖于过渡金属配合物和炔的收敛连接，以提供苯醌（来自马来酰金属配合物）和萘醌（来自邻苯二甲酰金属配合物）。该化学反应的重要方面是其通用性（末端，内部，富电子和缺电子的炔烃反应），其温和性（反应可在室温至80°之间进行）和其官能团相容性（醛，酮，酯，腈） ，烯烃，卤化物，缩醛，缩酮等）。
• An efficient synthesis of p-quinones utilizing a novel Pummerer-type rearrangement of p-sulfinylphenols
  作者：Shuji Akai、Yoshifumi Takeda、Kiyosei Iio、Yutaka Yoshida、Yasuyuki Kita

  DOI：10.1039/c39950001013

  日期：——

  Treatment of the p-sulfinylphenol derivatives 1 and 5 with trifluoroacetic anhydride causes a Pummerer-type rearrangement on aromatic rings and concomitant desulfurization to give 1 : 1 mixtures of the corresponding p-quinones and p-dihydroquinones, which are subjected to mild oxidation to provide high yields of p-quinones 3 and 7.

  对亚磺酰基苯酚衍生物 1 和 5 经三氟乙酸酐处理后，会在芳香环上发生普默尔型重排反应，同时发生脱硫反应，从而得到 1 : 1 的相应对醌和对二氢醌混合物。
• Functionalized Naphthalenes by Benzotriazole-Mediated Annulation
  作者：Katritzky, Alan R.、Zhang, Guifen、Xie, Linghong

  DOI：10.1080/00397919708005917

  日期：1997.11

  The anions of 3-benzotriazolylphthalide (1) and of 2-(benzotriazolylmethyl)benzonitrile (6) condense regioselectively with a range of Michael accepters to form 1,4-dihydroxynaphthalenes 4b-f and 1-amino-2,3-di(methoxycarbonyl)naphthalene (9) in moderate to good yields.
• Cyclobutenediones as precursors to quinones and cyclopentenones
  作者：Lanny S. Liebeskind

  DOI：10.1016/s0040-4020(01)80131-9

  日期：1989.1