1,2-二氢-7-甲氧基萘 | 52178-91-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 中文名称: 1,2-二氢-7-甲氧基萘
• 英文名称: 7-methoxy-1,2-dihydronaphthalene
• CAS: 52178-91-3
• 化学式: C₁₁H₁₂O
• mdl: MFCD16876855
• 分子量: 160.216
• InChiKey: OAWCMXCTQPOKQN-UHFFFAOYSA-N

物化性质

• 熔点：
  79-80 °C
• 沸点：
  103 °C(Press: 1 Torr)
• 密度：
  1.0561 g/cm3(Temp: 26.5 °C)
• 稳定性/保质期：
  存在于主流烟气中。

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.272
• 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：

  1,2-二氢-7-甲氧基萘 在 邻四氯苯醌 作用下， 以 邻二氯苯 为溶剂， 生成 2-萘甲醚
  参考文献：
  名称：

  945.氢转移。第十九部分。取代的1,2-二氢萘被醌脱氢，以及供体反应性与取代基性质的关系

  摘要：

  DOI：

  10.1039/jr9610004794
• 作为产物：
  描述：

  6-甲氧基-1,2,3,4-四氢萘-1-基乙酸酯 在 potassium hydrogensulfate 作用下， 120.0 ℃ 、2.93 kPa 条件下， 生成 1,2-二氢-7-甲氧基萘
  参考文献：
  名称：

  A Glucomannan and Chitosan Fiber Supplement Decreases Plasma Cholesterol and Increases Cholesterol Excretion in Overweight Normocholesterolemic Humans

  摘要：

  Objective: Both chitosan and glucomannan have demonstrated hypocholesterolemic effects. A recent study in rats indicates that the combination of the two is also a potent hypocholesterolemic agent that increases fecal fat excretion. The objective of the present study was to determine the hypocholesterolemic effect of a supplement containing equal amounts of chitosan and glucomannan on blood lipid concentrations and fecal excretion of fat, neutral sterols and bile acids.Methods: Twenty-one overweight normocholesterolemic subjects (I I males and 10 females) were fed 2.4 g/day of a supplement containing equal amounts of chitosan and glucomannan. Prior to taking the supplement (initial period) and after 28 days (final period), blood was drawn for measurement of serum lipids and a three-day fecal sample collected for determination of fat, neutral sterol and bile acid excretion. Subjects maintained their normal dietary and activity patterns during the study.Results: Caloric intake and intake of fat and dietary fiber (excluding the supplement) did not differ between the initial and final periods. Serum total, HDL and LDL cholesterol concentrations were significantly lower (P < 0.05) in the final period compared to the initial period. Serum triacylglycerol concentration did not change between periods. There was a trend towards greater fecal excretion of neutral sterols and bile acids (p = 0.13 and 0.16, respectively) in the final period. However. fecal fat excretion did not differ between periods.Conclusions: Serum cholesterol reduction by a chitosan/glucomannan supplement is likely mediated by increased fecal steroid excretion and is not linked to fat excretion.

  DOI：

  10.1080/07315724.2002.10719246

文献信息

• Diastereotopos-Differentiation in the Rh-Catalyzed Amination of Benzylic Methylene Groups in the α-Position to a Stereogenic Center
  作者：Anike Nörder、Sarah A. Warren、Eberhardt Herdtweck、Stefan M. Huber、Thorsten Bach

  DOI：10.1021/ja3066682

  日期：2012.8.15

  the C-H bond, which is diastereoselectively attacked, and steric strain between the remaining substituents at the stereogenic and the prostereogenic center is minimized. DFT calculations support this model. They suggest, however, that the reaction is not concerted but occurs via hydrogen atom abstraction and subsequent radical rebound. Further support for an antiperiplanar attack relative to a given

  用 18 种手性开链底物检查了 Rh 催化的 CH 胺化的非对映选择性，这些底物在立体中心 (-CHMeX) 的 α 位带有一个苄基亚甲基，以及四种手性环状四氢萘，其中立体中心位于碳原子 C2。使用三氯乙氧基磺酰基取代的胺（H（2）NTces）作为氮源，二酰氧基碘苯作为氧化剂和双[铑（α，α，α'，α'-四甲基-1，3-苯二丙酸酯)] [Rh(2)(esp)(2)] 作为催化剂。对于无环底物，如果取代基 X 是 Br、PO(OEt)(2)、SO(2)Ph 或 OOCCF(3)（八个例子），则发现高顺式非对映选择性（dr > 95/5）。发现 X = NO(2)、OAc、COOMe 和 CN（八个示例）具有中等至良好的顺式选择性（dr = 80/20 至 91/9）。只有两种底物具有低的非对映选择性。动力学同位素效应 (KIE) 实验表明，用 -CDMeCOOMe 替换 -CHMeCOOMe
• Cyclopentene Annulations of Alkene Radical Cations with Vinyl Diazo Species Using Photocatalysis
  作者：Francisco J. Sarabia、Qiankun Li、Eric M. Ferreira

  DOI：10.1002/anie.201805732

  日期：2018.8.20

  A direct (3+2) cycloaddition between alkenes and vinyl diazo reagents using either Cr or Ru photocatalysis is described. The intermediacy of a radical cation species enables a nucleophilic interception by vinyl diazo compounds, a departure from their traditional electrophilic behavior. A variety of cyclopentenes are synthesized using this method, and experimental insights implicate a direct cycloaddition

  描述了使用 Cr 或 Ru 光催化在烯烃和乙烯基重氮试剂之间进行直接 (3+2) 环加成。自由基阳离子物质的中介作用使得乙烯基重氮化合物能够进行亲核拦截，这与它们传统的亲电子行为不同。使用这种方法合成了多种环戊烯，实验结果表明直接环加成而不是环丙烷化/重排过程。
• Nickel-Catalyzed Arylboration of Alkenylarenes: Synthesis of Boron-Substituted Quaternary Carbons and Regiodivergent Reactions
  作者：Liang-An Chen、Alan R. Lear、Pin Gao、M. Kevin Brown

  DOI：10.1002/anie.201904861

  日期：2019.8.5

  A method for the construction of boron‐substituted quaternary carbons or diarylquaternary carbons by arylboration of highly substituted alkenylarenes is presented. A wide range of alkenes and arylbromides can participate in this reaction thus allowing for a diverse assortment of products to be prepared. In addition, a solvent dependent regiodivergent arylboration of 1,2‐disubstituted alkenylarenes

  提出了一种通过高度取代的烯基芳烃的芳基硼化来构建硼取代的季碳或二芳基季碳的方法。多种烯烃和芳基溴可以参与该反应，从而可以制备多种产品。此外，还提出了 1,2-二取代烯基芳烃的溶剂依赖性区域发散芳基硼化反应，从而大大增加了可获得的产品范围。
• Deoxyfluorination with CuF ₂ : Enabled by Using a Lewis Base Activating Group
  作者：D. Eilidh Sood、Sue Champion、Daniel M. Dawson、Sonia Chabbra、Bela E. Bode、Andrew Sutherland、Allan J. B. Watson

  DOI：10.1002/anie.202001015

  日期：2020.5.25

  Deoxyfluorination is a primary method for the formation of C-F bonds. Bespoke reagents are commonly used because of issues associated with the low reactivity of metal fluorides. Reported here is the development of a simple strategy for deoxyfluorination, using first-row transition-metal fluorides, and it overcomes these limitations. Using CuF2 as an exemplar, activation of an O-alkylisourea adduct

  脱氧氟化是形成CF键的主要方法。由于金属氟化物的低反应性相关的问题，通常使用定制试剂。本文报道了使用第一行过渡金属氟化物开发一种简单的脱氧氟化策略的方法，它克服了这些限制。使用CuF2作为示例，原位形成的O-烷基异脲加合物的活化可以有效地将亲核氟化物转移到一系列伯醇和仲醇中。光谱研究已被用来探测CuF2反应性增强的起源。还介绍了该方法在实现18 F放射性标记方面的实用性。
• Ruthenium‐Catalyzed Dehydrogenation Through an Intermolecular Hydrogen Atom Transfer Mechanism
  作者：Lin Huang、Alessandro Bismuto、Simon A. Rath、Nils Trapp、Bill Morandi

  DOI：10.1002/anie.202015837

  日期：2021.3.22

  The direct dehydrogenation of alkanes is among the most efficient ways to access valuable alkene products. Although several catalysts have been designed to promote this transformation, they have unfortunately found limited applications in fine chemical synthesis. Here, we report a conceptually novel strategy for the catalytic, intermolecular dehydrogenation of alkanes using a ruthenium catalyst. The combination

  烷烃直接脱氢是获得有价值的烯烃产品的最有效方法之一。尽管已经设计了几种催化剂来促进这种转变，但不幸的是它们在精细化学合成中的应用有限。在这里，我们报告了一种使用钌催化剂催化烷烃分子间脱氢的概念新颖的策略。氧化还原活性配体和空间位阻芳基自由基中间体的组合释放了这种新策略。重要的是，已经进行了机理研究，为进一步开发这种新型催化脱氢系统提供了概念框架。