2-n-butyl-5-methyl-2,5-cyclohexadiene-1,4-dione | 144791-04-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-n-butyl-5-methyl-2,5-cyclohexadiene-1,4-dione
• 英文别名: 2-butyl-5-methylcyclohexa-2,5-diene-1,4-dione；2-Butyl-5-methyl-[1,4]benzoquinone
• CAS: 144791-04-8
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: IDQLSZDTCNWVED-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-methyl-2-cyclohexenone 在 silica gel 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 甲苯 为溶剂， 反应 5.0h， 生成 2-n-butyl-5-methyl-2,5-cyclohexadiene-1,4-dione
  参考文献：
  名称：

  Preparation of 1,4-hydrobenzoquinones by the PCC/SiO2-promoted double oxidation of 3-cyclohexene-1,2-diols

  摘要：

  PCC/SiO2催化的3-环己烯-1,2-二醇的双重氧化反应，经过两步反应序列轻松制备而成：首先是对各种共轭环己烯酮的α'-羟基化，随后是烷基阴离子的亲核碳基添加反应，最终生成了多种取代的1,4-氢苯醌。

  DOI：

  10.1039/b511067j

文献信息

• Alkyne Competition in the Benzannulation Reaction with Chromium Carbene Complexes
  作者：Chunrui Wu、Dmytro O. Berbasov、William D. Wulff

  DOI：10.1021/jo100433k

  日期：2010.7.2

  The benzannulation reaction of Fischer carbene complexes is investigated under conditions where the reaction of the carbene complex is occurring in the presence of two different alkynes. A series of competition experiments are examined where the effects of various structural factors are explored by pitting 10 different carbene complexes with 11 different alkynes. Terminal alkynes will react selectively

  在两种不同炔烃存在的情况下，在卡宾配合物的反应发生的条件下研究了费歇尔卡宾配合物的苯环化反应。考察了一系列竞争实验，其中通过将10种不同的卡宾配合物与11种不同的炔烃进行点蚀来探索各种结构因素的影响。在所有检查的情况下，包括芳基和烯基配合物，末端炔烃将比内部炔烃选择性反应。具有甲氧基取代基的芳基卡宾配合物对末端炔烃的选择性不如对内炔烃（〜95：5）的异丙醇取代基（> 99：1）的高，而大多数烯基配合物对两个取代基的选择性都很高（> 99： 1）。在两个不同的末端炔烃之间或两个不同的内部炔烃之间的竞争实验所产生的结果最多不过是非常适度的选择性（〜2：1）。如果一个末端乙炔中的一个被三甲基甲硅烷基保护，则在两个不同的末端乙炔之间可以实现极好的选择性。最后，证明了末端炔烃和内部炔烃之间的高选择性可用于与包含两种类型的炔烃功能的分子的反应。
• A potentially general regiospecific synthesis of substituted quinones from dimethyl squarate
  作者：Leah M. Gayo、Michael P. Winters、Harold W. Moore

  DOI：10.1021/jo00051a040

  日期：1992.12

  A potentially general regiospecific synthesis of benzo- and naphthoquinones is described. This method starts with dimethyl squarate (1), which is converted to the cyclobutenone ketal 3 upon sequential treatment with an organolithium reagent and then BF3 etherate or TFAA in THF/methanol. Treatment of these with a second lithium reagent followed by hydrolysis gives the cyclobutenones 5. Addition of an alkynyl-, alkenyl- or aryllithium agent to 5 followed by hydrolysis of the ketal linkage gives the corresponding 4-alkynyl- 4-alkenyl- or 4-aryl-4-hydroxycyclobutenones 7-9, and these readily rearrange to the respective quinones or hydroquinones upon thermolysis in refluxing benzene. In a similar fashion, 15 was employed as a reagent to prepare mono- and disubstituted hydroquinones and quinones.
• QUINONE COMPOUNDS FOR USE IN PHOTOVOLTAIC APPLICATION
  申请人：Decampo Floryan

  公开号：US20130306917A1

  公开（公告）日：2013-11-21

  The invention relates to a photovoltaic coating containing a mixture of organic N-type (acceptor) and P-type (donor) semiconductor compounds, which makes it possible, when selecting the donor/acceptor pair, to modulate the semiconductor properties of the photovoltaic coating so as to enable the use thereof within a photovoltaic device, wherein one of the organic semiconductors includes a quinone core.
• Preparation of 1,4-hydrobenzoquinones by the PCC/SiO2-promoted double oxidation of 3-cyclohexene-1,2-diols
  作者：Hee Jin Kim、Sangho Koo

  DOI：10.1039/b511067j

  日期：——

  The PCC/SiO2-promoted double oxidation of 3-cyclohexene-1,2-diols, which were easily prepared by the two-step sequence of α′-hydroxylation of various conjugated cyclohexenones and the subsequent nucleophilic carbonyl addition of alkyl anions, produced diversely substituted 1,4-hydrobenzoquinones.

  PCC/SiO2催化的3-环己烯-1,2-二醇的双重氧化反应，经过两步反应序列轻松制备而成：首先是对各种共轭环己烯酮的α'-羟基化，随后是烷基阴离子的亲核碳基添加反应，最终生成了多种取代的1,4-氢苯醌。