1H-cyclopenta[a]naphthalen-2(3H)-one | 20849-44-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚满类
• 英文名称: 1H-cyclopenta[a]naphthalen-2(3H)-one
• 英文别名: 5,6-benz-2-indanone；Benzindan-2-on；4,5-Benzindan-2-on；1,3-Dihydrocyclopenta[a]naphthalen-2-one
• CAS: 20849-44-9
• 化学式: C₁₃H₁₀O
• 分子量: 182.222
• InChiKey: NXTDDAQASRTZLM-UHFFFAOYSA-N

物化性质

• 熔点：
  113-116 °C
• 沸点：
  364.0±31.0 °C(Predicted)
• 密度：
  1?+-.0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1H-cyclopenta[a]naphthalen-2(3H)-one 、 碘甲烷 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 叔丁醇 为溶剂， 生成 1,1,3,3-tetramethyl-5,6-benz-2-indanone
  参考文献：
  名称：

  Products and transients in the photolysis of methylated 2-indanones. Observation and kinetics of o-xylylenes

  摘要：

  DOI：

  10.1021/ja00506a023
• 作为产物：
  描述：

  1-萘乙酸 在 氯化亚砜 作用下， 以 四氢呋喃 、 乙醚 、 乙腈 为溶剂， 反应 90.5h， 生成 1H-cyclopenta[a]naphthalen-2(3H)-one
  参考文献：
  名称：

  Nitric Oxide Cheletropic Traps (NOCTs) with Improved Thermal Stability and Water Solubility

  摘要：

  The search for nitric oxide cheletropic traps (NOCTs) of the 7,7,8,8-tetraalkyl-o-quinodimethane type which would have properties appropriate for monitoring the formation of nitric oxide in cell cultures and in vivo by magnetic resonance techniques is described. In addition to the necessary condition that a NOCT reacts rapidly with NO to yield a persistent nitroxide radical, two additional properties were sought: (i) thermal stability at the temperature of interest (37 degrees C) and (ii) water solubility. To these ends, a number of 1,1,3,3-tetraalkyl-2-indanones (and a related naphthalene derivative) were synthesized and subjected to UV photolysis in solution, a procedure which generally (though not in all cases) caused the elimination of carbon monoxide and formation of the corresponding o-quinodimethane. The thermal instability of many of these compounds is due to a 1,5-sigmatropic hydrogen atom transfer which, for example, converts 7,7,8,8-tetramethyl-o-quinodimethane (1) to o-isopropyll-alpha-methylstyrene(1P) with a half-life of only ca. 140 s at 37 degrees C. Several o-quinodimethanes were discovered which were, for all practical purposes, completely stable at 37 degrees C. The most suitable lipid-soluble NOCT discovered was 7-(2-indenyl)-7,8,8-trimethyl-o-quinodimethane (5), which is stable and reacts very rapidly with NO to form a persistent nitroxide. Various derivatives of 5 were also examined and found to be equally, or almost equally, effective NOCTs. Water solubility was explored by addition of water-solubilizing groups to the ring of 1. The carboxylic acid group, 13, was found to be particularly suitable, since the carboxylate anion 14 conferred excellent water solubility without,interfering with either the nitric oxide trapping reaction or the necessary photoelimination of carbon monoxide from the starting indanone. Of even greater importance, the carboxylate group had no apparent effect on the rate of the thermal 1,5-sigmatropic rearrangement; i.e., the rates of decay of 14 and 1 were equal within experimental error. It is concluded that NOCTs of the o-quinodimethane class having long lifetimes and a high reactivity toward NO can now be prepared with appropriate lipophilic, hydrophilic, or amphiphilic properties. These NOCTs should prove suitable for exploratory use in biological systems.

  DOI：

  10.1021/ja00086a010

文献信息

• Biarylphosphonite Gold(I) Complexes as Superior Catalysts for Oxidative Cyclization of Propynyl Arenes into Indan-2-ones
  作者：Guilhem Henrion、Thomas E. J. Chavas、Xavier Le Goff、Fabien Gagosz

  DOI：10.1002/anie.201301015

  日期：2013.6.10

  Striking gold: A series of variously functionalized propynyl arenes was smoothly converted into indan‐2‐ones by a new gold(I)‐catalyzed oxidative cyclization process. [LAu]NTf2 (Tf=trifluoromethanesulfonyl) is a superior catalyst both in terms of yield and kinetics for the present transformation.

  打击金：通过新的金（I）催化的氧化环化工艺，一系列功能化的丙炔基芳烃被顺利转化为茚满-2-酮。就本转化而言，就收率和动力学而言，[ L Au] NTf 2（Tf ＝三氟甲磺酰基）是优良的催化剂。
• Formation of Five- and Seven-Membered Rings Enabled by the Triisopropylsilyl Auxiliary Group
  作者：Dmitry L. Usanov、Hisashi Yamamoto

  DOI：10.1021/ol203209b

  日期：2012.1.6

  to 2-indanones from aldehydes was established. The introduction of a triisopropylsilyl group greatly facilitated Meinwald rearrangement of the intermediate epoxides and alleviated the necessity of polysubstitution for the clean formation of indenes and cyclopentadienes via cyclodehydration of allylic alcohols; unprecedented freedom with respect to the product structure was thus achieved. The developed

  建立了从醛到2-茚满酮的高度方便的合成途径。三异丙基甲硅烷基的引入极大地促进了中间环氧化物的迈因瓦尔德重排，并减轻了通过烯丙基醇的环化脱水干净形成茚满和环戊二烯的多取代的必要性。这样就实现了产品结构方面前所未有的自由。所开发的方法也可以适用于形成二元环[7]环和二苯并亚砜的七元环的形成。
• Gold(I)-Catalyzed Cyclodehydration Enabled by the Triisopropylsilyl Group: A Synthetically Versatile Methodology
  作者：Dmitry L. Usanov、Marina Naodovic、Malte Brasholz、Hisashi Yamamoto

  DOI：10.1002/hlca.201200176

  日期：2012.10

  carbinols greatly enhances the efficiency of gold(I)‐catalyzed cyclodehydration, which can provide rapid access to a library of various compounds including 1H‐indenes (Table 2 and Scheme 5), benzofulvenes (Table 3), indan‐2‐ones (Scheme 2), fulvenes (Table 4), cyclopentadienes (Table 4), 5H‐dibenzo[a,c][7]annulenes (Scheme 6) and dibenzosuberones (Scheme 6). The developed method enables unprecedented product

  三异丙基团引入烯丙基和丙二烯基原醇大大的增强引入的金（I） -催化的环化脱水的效率，这可以提供对各种化合物，包括1个所述的库内的快速访问ħ -indenes（表2和方案5），benzofulvenes（表3），茚满-2-酮（方案2），富勒烯（表4），环戊二烯（表4），5 H-二苯并[ a，c ] [7]环烯（方案6）和二苯并亚砜（方案6））。所开发的方法可实现几类环脱水反应的空前的产品通用性，这在制备1 H茚时尤其引人注目。通过烯基乙烯基甲醇的环脱水，可以完成非苯并稠合的富烯的第一个合成。该协议在温和的条件下，操作上的便利性以及易于使用的起始原料方面都非常出色。
• Diastereoselective Pauson–Khand reactions on aromatic substrates
  作者：Jaime Blanco-Urgoiti、Luis Casarrubios、Gema Domı́nguez、Javier Pérez-Castells

  DOI：10.1016/s0040-4039(01)00446-4

  日期：2001.5

  The synthesis of several natural products’ frameworks is carried out by means of a diastereoselective intramolecular Pauson–Khand reaction promoted by molecular sieves. Diastereoselectivity is achieved only if a coordinating group is present at a convenient distance from the alkene moiety. Naphthalenes can be obtained directly under refluxing toluene conditions.

  几种天然产物骨架的合成是通过分子筛促进的非对映选择性分子内Pauson-Khand反应进行的。仅当配位基团存在于距烯烃部分方便的距离时，才能实现非对映选择性。萘可以在回流甲苯条件下直接获得。
• Photochemische Reaktionen. 48. Mitteilung [1]. Photolytische Substitutionen von Aromaten mit ?-Sulfonyloxyketonen. Vorl�ufige Mitteilung
  作者：A. Tuinman、S. Iwasaki [2]、K. Schaffner、O. Jeger

  DOI：10.1002/hlca.19680510737

  日期：1968.10.31

  Photo-excited arenes have been found to initiate a substitution reaction in which the sulfonyloxy group of α-sulfonyloxyketones is displaced, and the corresponding β-arylketones are formed. Evidence is presented that the electronically excited arene need not be involved directly in the substitution step. It would seem to be more likely that upon interaction with the sulfonyloxyketone a reactive species

  已经发现光激发的芳烃引发取代反应，其中α-磺酰氧基酮的磺酰氧基被置换，并形成相应的β-芳基酮。证据表明，电子激发的芳烃不需要直接参与取代步骤。在与磺酰氧基酮相互作用时，似乎更有可能产生衍生自后者的反应性物质，其能够进行芳族取代。