4-(methylthio)-benzylideneacetone | 55047-64-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: 4-(methylthio)-benzylideneacetone
• 英文别名: 4-Methylmercaptophenyl-3-buten-2-on；1-(4-Methylthiophenyl)but-1-en-3-one；4-(4-methylsulfanylphenyl)but-3-en-2-one
• CAS: 55047-64-8
• 化学式: C₁₁H₁₂OS
• 分子量: 192.282
• InChiKey: WPEICAJTXGCMOO-UHFFFAOYSA-N

物化性质

• 沸点：
  340.9±25.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  42.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-(methylthio)-benzylideneacetone 在 sodium hydroxide 、 硫酸 、 sodium ethanolate 、 sodium hydride 作用下， 以 乙醇 为溶剂， 反应 19.0h， 生成 7-Chloro-1-[(E)-3-dimethylamino-propylimino]-3-(4-methylsulfanyl-phenyl)-1,3,4,10-tetrahydro-2H-acridin-9-one
  参考文献：
  名称：

  Antimalarial drugs. 64. Synthesis and antimalarial properties of 1-imino derivatives of 7-chloro-3-substituted-3,4-dihydro-1,9(2H,10H)-acridinediones and related structures

  摘要：

  To improve upon the activity and properties of the 3-aryl-7-chloro-3,4-dihydro-1,9(2H,10H)-acridinediones, a variety of 1-[(alkylamino)alkylene]imino derivatives (3) were prepared and shown to be highly active antimalarial agents in both rodents and primates. Among structural modifications prepared, including N-10-alkyl and C2-substituted analogs, removal of the C-9 oxygen, and introduction of an imino side chain at C-9, the imines of the N-10-H acridinediones were the most active compounds obtained. The [3-(NN-dimethylamino)propyl]imino derivative of 7-chloro-3-(2,4-dichlorophenyl)-3,4-dihydro-1,9(2H,10H)-acridinedione (9aa) proved to be highly active in advanced studies in primates.

  DOI：

  10.1021/jm00097a001
• 作为产物：
  描述：

  4-(甲基巯基)苯甲醛 、 1-三苯基膦-2-丙酮 以 四氢呋喃 为溶剂， 反应 12.0h， 生成 4-(methylthio)-benzylideneacetone
  参考文献：
  名称：

  Cyclohexane 1,3-diones and their inhibition of mutant SOD1-dependent protein aggregation and toxicity in PC12 cells

  摘要：

  Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the progressive loss of motor neurons. Currently, there is only one FDA-approved treatment for ALS (riluzole), and that drug only extends life, on average, by 2-3 months. Mutations in Cu/Zn superoxide dismutase (SOD1) are found in familial forms of the disease and have played an important role in the study of ALS pathophysiology. On the basis of their activity in a PC12-G93A-YFP high-throughput screening assay, several bioactive compounds have been identified and classified as cyclohexane-1,3-dione (CHD) derivatives. A concise and efficient synthetic route has been developed to provide diverse CHD analogs. The structural modification of the CHD scaffold led to the discovery of a more potent analog (26) with an EC(50) of 700 nM having good pharmacokinetic properties, such as high solubility, low human and mouse metabolic potential, and relatively good plasma stability. It was also found to efficiently penetrate the blood-brain barrier. However, compound 26 did not exhibit any significant life span extension in the ALS mouse model. It was found that, although 26 was active in PC12 cells, it had poor activity in other cell types, including primary cortical neurons, indicating that it can penetrate into the brain, but is not active in neuronal cells, potentially due to poor selective cell penetration. Further structural modification of the CHD scaffold was aimed at improving global cell activity as well as maintaining potency. Two new analogs (71 and 73) were synthesized, which had significantly enhanced cortical neuronal cell permeability, as well as similar potency to that of 26 in the PC12-G93A assay. These CHD analogs are being investigated further as novel therapeutic candidates for ALS. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2011.11.039

文献信息

• Chemoselective and metal-free reduction of α,β-unsaturated ketones by <i>in situ</i> produced benzeneselenol from <i>O</i>-(<i>tert</i>-butyl) Se-phenyl selenocarbonate
  作者：Andrea Temperini、Marco Ballarotto、Carlo Siciliano

  DOI：10.1039/d0ra07128e

  日期：——

  The carbon–carbon double bond of arylidene acetones and chalcones can be selectively reduced with benzeneselenol generated in situ by reacting O-(tert-butyl) Se-phenyl selenocarbonate with hydrochloric acid in ethanol. This mild, metal-free and experimentally simple reduction procedure displays considerable functional-group compatibility, products are obtained in good to excellent yields, and the use

  亚芳基丙酮和查耳酮的碳碳双键可以通过O- (叔丁基)硒苯基硒代碳酸酯与盐酸在乙醇中的反应原位产生的苯硒醇选择性还原。这种温和、无金属且实验简单的还原过程显示出相当大的官能团兼容性，产品的收率非常好，并且避免使用有毒的 Se/CO 混合物和 NaSeH，或有气味且对空气敏感的苯硒醇.
• Iridium-Catalyzed Alkene-Selective Transfer Hydrogenation with 1,4-Dioxane as Hydrogen Donor
  作者：Deliang Zhang、Tomohiro Iwai、Masaya Sawamura

  DOI：10.1021/acs.orglett.9b01989

  日期：2019.8.2

  using 1,4-dioxane as a hydrogen donor is described. The use of 1,2-bis(dicyclohexylphosphino)ethane (DCyPE), featuring bulky and highly electron-donating properties, led to high catalytic activity. A polystyrene-cross-linking bisphosphine PS-DPPBz produced a reusable heterogeneous catalyst. These homogeneous and heterogeneous protocols achieved chemoselective transfer hydrogenation of alkenes over

  描述了使用1，4-二恶烷作为氢供体的铱催化的烯烃的转移加氢。1,2-双（二环己基膦基）乙烷（DCyPE）的使用具有体积大和给电子高的特性，因此具有很高的催化活性。聚苯乙烯交联双膦PS-DPPBz产生了可重复使用的非均相催化剂。这些均质和非均质的方案实现了烯烃在其他可能还原的官能团（例如同一分子中的羰基，硝基，氰基和亚氨基）上的化学选择性转移加氢。
• Decarboxylation-triggered homo-Nazarov cyclization of cyclic enol carbonates catalyzed by rhenium complex
  作者：Natsuki Kimaru、Keiichi Komatsuki、Kodai Saito、Tohru Yamada

  DOI：10.1039/d1cc01144h

  日期：——

  Decarboxylative homo-Nazarov cyclization catalyzed by a Lewis acid was achieved using a cyclic enol carbonate bearing a cyclopropane moiety as a substrate. Various substrates were converted into the corresponding multi-substituted cyclohexenones in good yields via decarboxylation, followed by 6-membered ring formation involving cyclopropane-ring-opening.

  使用带有环丙烷部分的环状烯醇碳酸酯，通过路易斯酸催化的脱羧均-纳扎罗夫环化反应。通过脱羧将各种底物以高收率转化成相应的多取代的环己酮，然后进行涉及环丙烷开环的6元环形成。
• Camphor-derived C1-symmetric chiral diamine organocatalysts for asymmetric Michael addition of nitroalkanes to enones
  作者：Yirong Zhou、Qiang Liu、Yuefa Gong

  DOI：10.1039/c2ob25922b

  日期：——

  A series of stable C1-symmetric chiral diamines (2a–2l) were conveniently synthesized by condensing exo-(−)-bornylamine or (+)-(1S,2S,5R)-menthylamine with various commercially available Cbz-protected amino acids. Among them, 2a can efficiently promote the Michael addition of nitroalkanes to a broad scope of enones with high yields (up to 96%) and excellent enantioselectivities (up to 98%) under mild conditions.

  一系列稳定的C1对称手性二胺（2a-2l）通过将exo-(-)-冰片胺或(+)-(1S,2S,5R)-薄荷胺与各种市售的Cbz保护氨基酸缩合而方便地合成。其中，2a在温和条件下能高效促进硝基烷烃对广泛范围的烯酮的迈克尔加成反应，产率高达96%，立体选择性极佳（高达98%）。
• Solvent Dependent Divergent Reactivity of Electron‐Rich Dienones with and without Visible Light: Access to Cyclopropanated Furans and Butenolides
  作者：Jayanta Saha、Indrajit Das

  DOI：10.1002/adsc.201901273

  日期：2020.2.6

  hexafluoroisopropanol (HFIP) as an additive promotes intramolecular radical cascade cyclization to afford cyclopropanated furans. Molecular dioxygen in the air serves as a redox catalyst in this reaction which is proposed to proceed through a radical cation intermediate generated by single‐electron transfer (SET) from a phototransient dienone to oxygen. By changing the solvent from isopropanol to HFIP

  在环境条件下，使用六氟异丙醇（HFIP）作为添加剂，可在异丙醇溶剂中对富电子二烯酮进行可见光激发，从而促进分子内自由基级联环化，生成环丙烷化呋喃。空气中的分子双氧在该反应中充当氧化还原催化剂，该反应被提议通过由光瞬变二烯酮到氧的单电子转移（SET）产生的自由基阳离子中间体进行。通过将溶剂从异丙醇更改为HFIP，通过涉及E → Z的离子级联环化，可独家形成取代的丁烯内酯异构化/内酯化/硫醇盐加成。假设HFIP充当介质，氢键供体催化剂以及路易斯酸的替代物。即使在不存在光的情况下也可以进行该反应，并且不需要催化剂或试剂。