2-(3-氧代-1,3-二苯基丙基)环戊烷-1-酮 | 39745-17-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 中文名称: 2-(3-氧代-1,3-二苯基丙基)环戊烷-1-酮
• 英文名称: 2-(3-Oxo-1,3-diphenylpropyl)cyclopentan-1-one
• CAS: 39745-17-0
• 化学式: C₂₀H₂₀O₂
• 分子量: 292.378
• InChiKey: IQTCJKVODXEBPC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(3-氧代-1,3-二苯基丙基)环戊烷-1-酮 在 高氯酸 、 乙醚 、 乙酸酐 作用下， 生成 2,4-Diphenyl-5,6-dihydrocyclopenta pyrylium perchlorate
  参考文献：
  名称：

  Cohesion in science lesson discourse: clarity, relevance and sufficient information

  摘要：

  This paper discusses linguistics in the teaching of science, specifically the key linguistic processes through which students learn, rather than the mechanics of classroom interaction. Integrated datasets from The Classroom Learning Project contain transcripts of videotaped lessons spliced with teacher and student interviews and annotated with a researcher's comments. To illustrate the role of language in determining the effectiveness of teaching and learning, an integrated data set for one Australian Year 9 (14 year old students) science lesson on 'Fibres and Fabrics' was analysed in terms of coherence and comprehension. The analysis demonstrates the importance of communication skills in the classroom and the value of language analysis in determining the effectiveness of teacher's instructions. This paper argues the need for teachers to consider the importance of learning as a linguistic milieu especially when teaching science in context. When teaching and learning in contextually, competent communication must include adequate, genuine, clear and relevant amounts of information.

  DOI：

  10.1080/09500690010025076
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 lead(IV) acetate 、 苯 作用下， 生成 2-(3-氧代-1,3-二苯基丙基)环戊烷-1-酮
  参考文献：
  名称：

  Paul, Chemische Berichte, 1957, vol. 90, p. 2764,2766

  摘要：

  DOI：

文献信息

• The Michael Reaction of Silyl Enol Ethers with α,β-Unsaturated Eetones and Acetals in the Presence of Titanium Tetraalkoxide and Titanium Tetrachloride
  作者：Koichi Narasaka、Kenso Soai、Yukiko Aikawa、Teruaki Mukaiyama

  DOI：10.1246/bcsj.49.779

  日期：1976.3

  Silyl enol ethers react with α,β-unsaturated ketones and esters in the presence of TiCl4 or in the coexistence of TiCl4 and Ti(Oi-Pr)4 to give 1,5-dicarbonyl compounds in good yields. The reactions of acetals derived from α,β-unsaturated ketones with silyl enol ethers in the coexistence of TiCl4 and Ti(Oi-Pr)4, followed by successive addition of 1,2-ethanedithiol, give the Michael products, δ-keto

  在 TiCl4 存在下或在 TiCl4 和 Ti(Oi-Pr)4 共存下，甲硅烷基烯醇醚与 α,β-不饱和酮和酯反应，以良好的收率得到 1,5-二羰基化合物。在 TiCl4 和 Ti(Oi-Pr)4 共存下，α,β-不饱和酮衍生的缩醛与甲硅烷基烯醇醚反应，然后连续加入 1,2-乙二硫醇，得到迈克尔产物，δ-酮乙烯硫缩醛，收率良好。当上述实验中使用Ti(OCEt3)4代替Ti(Oi-Pr)4时，甲硅烷基烯醇醚与α,β-不饱和醛衍生的缩醛反应也得到迈克尔产物，并成功应用于简单合成二氢玫瑰氧化物。
• Direct Asymmetric Michael Additions of Ketones to Nitroolefins and Chalcones Catalyzed by a Chiral C2-Symmetric Pyrrolidine-based Tetraamine
  作者：Shijun Ma、Lulu Wu、Ming Liu、Yongmei Wang

  DOI：10.1002/cjoc.201200214

  日期：2012.8.14

  C2‐Symmetric pyrrolidine‐based tetraamine, available from commercially starting materials, showed good catalytic activity for asymmetric Michael additions of ketones to nitroalkenes especially to chalcones. The reactions proceeded to give the corresponding products in good yields and in a highly selective manner.

  C 2对称的基于吡咯烷的四胺（可从商业原料获得）显示出良好的催化活性，可将酮不​​对称地迈克尔加成至硝基烯烃，特别是对查耳酮。反应进行以高收率和高度选择性的方式得到相应的产物。
• Upconversion NIR-II fluorophores for mitochondria-targeted cancer imaging and photothermal therapy
  作者：Hui Zhou、Xiaodong Zeng、Anguo Li、Wenyi Zhou、Lin Tang、Wenbo Hu、Quli Fan、Xianli Meng、Hai Deng、Lian Duan、Yanqin Li、Zixin Deng、Xuechuan Hong、Yuling Xiao

  DOI：10.1038/s41467-020-19945-w

  日期：——

  but also efficiently convert optical energy into heat, achieving mitochondria-targeted photothermal cancer therapy without ROS effects. H4-PEG-PT has been further evaluated in vivo and exhibited strong tumor uptake, specific NIR-II signals with high spatial and temporal resolution, and remarkable NIR-II image-guided photothermal therapy. This report presents the first D-A type thiopyrylium NIR-II theranostics

  NIR-II荧光团具有出色的体内光学特性，在生物医学应用中显示出了广阔的前景。迄今为止，几乎没有发现具有供体-受体-供体（DAD）或对称结构的小分子NIR-II荧光团，并且尚未报道靶向上转换线粒体的NIR-II染料。在本文中，我们报道了在约850 nm激发后在约580 nm处具有频率上转换发光（FUCL）的DA型基于硫代吡啶鎓的NIR-II荧光团的发展。H4-PEG-PT不仅可以快速有效地以1 nM的亚细胞分辨率对活的或固定的骨肉瘤细胞中的线粒体进行成像，而且还可以有效地将光能转化为热量，从而实现针对线粒体的光热癌症疗法而无ROS效应。H4-PEG-PT已在体内进行了进一步评估，并显示出强大的肿瘤吸收能力，具有高时空分辨率的特定NIR-II信号，以及出色的NIR-II图像引导光热疗法。本报告介绍了首个用于同步上转换线粒体靶向细胞成像，体内NIR-II骨肉瘤成像和出色的光热效率的DA型硫吡咯NIR-II治疗学。
• Counterion‐Paired Bright Heptamethine Fluorophores with NIR‐II Excitation and Emission Enable Multiplexed Biomedical Imaging
  作者：Yang Yang、Caixia Sun、Shangfeng Wang、Kui Yan、Mengyao Zhao、Bin Wu、Fan Zhang

  DOI：10.1002/anie.202117436

  日期：2022.6.13

  A series of heptamethine cyanines (HCs) has absorption/emission maxima spanning from 1100 to 1600 nm. A counterion-paired strategy was explored to improve the brightness of HCs in aqueous solution by reducing aggregation and polarization. Profiting from enhanced brightness and well-shaped absorption spectra, dual-color imaging based on NIR-II excitation and emission was performed in living mice for

  一系列七次甲基花青 (HC) 的最大吸收/发射波长范围为 1100 至 1600 nm。探索了一种反离子配对策略，通过减少聚集和极化来提高水溶液中 HC 的亮度。得益于增强的亮度和形状良好的吸收光谱，首次在活体小鼠中进行了基于 NIR-II 激发和发射的双色成像。
• Resolving the Mechanistic Complexity in Triarylborane-Induced Conjugate Additions
  作者：Robert J. Mayer、Nathalie Hampel、Armin R. Ofial、Herbert Mayr

  DOI：10.1021/acscatal.2c04905

  日期：2022.12.16

  double-label crossover experiments and comparisons of absolute reaction rates. We have now performed a detailed investigation on the kinetics and mechanism of the triarylborane-initiated conjugate addition reactions of allylsilanes and silyl enol ethers to α,β-unsaturated carbonyl compounds. NMR spectroscopic monitoring of such reactions gave rise to sigmoidal kinetic profiles, allowing us to directly

  以往的研究表明，路易斯酸催化的烯丙基硅烷或甲硅烷基烯醇醚与羰基化合物或迈克尔受体的加成反应中的催化活性物质通常是甲硅烷-羰基加合物，而不是羰基与路易斯酸的加合物用于反应的诱导。到目前为止，此类催化剂变化的间接证据来自双标记交叉实验和绝对反应速率的比较。我们现在对三芳基硼烷引发的烯丙基硅烷和甲硅烷基烯醇醚与 α,β-不饱和羰基化合物的共轭加成反应的动力学和机理进行了详细研究。这种反应的 NMR 光谱监测产生了 S 形动力学曲线，使我们能够在反应的主要部分直接跟踪催化活性路易斯酸从诱导期的三芳基硼烷到甲硅烷基离子的变化。交叉实验和四元和五元环状分子内捕获产物的分离提供了对该机制的进一步了解。各种机械变体和动力学模型的 DFT 计算阐明了复杂反应网络的运行，使实验观察合理化。