2-(4-methylbenzyl)cyclohexanone | 62596-28-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(4-methylbenzyl)cyclohexanone
• 英文别名: 2-(4-Methyl-benzyl)-cyclohexanon；2-[(4-Methylphenyl)methyl]cyclohexanone；2-[(4-methylphenyl)methyl]cyclohexan-1-one
• CAS: 62596-28-5
• 化学式: C₁₄H₁₈O
• 分子量: 202.296
• InChiKey: IFXQRACZWHHZRP-UHFFFAOYSA-N

物化性质

• 沸点：
  150-153 °C(Press: 4.5 Torr)
• 密度：
  1.020 g/cm3(Temp: 420 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 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：

  2-(4-methylbenzyl)cyclohexanone 在 盐酸 、 manganese(IV) oxide 、 正丁基锂 、 sodium hydride 、 二异丁基氢化铝 、 三乙胺 、 二异丙胺 作用下， 以 四氢呋喃 、 甲苯 、 苯 为溶剂， 反应 7.25h， 生成 (E)-3-[2-(4-Fluoro-phenyl)-7-(4-methyl-benzyl)-4,5,6,7-tetrahydro-2H-indazol-3-yl]-propenal
  参考文献：
  名称：

  HMG-CoA reductase inhibitors: design, synthesis, and biological activity of tetrahydroindazole-substituted 3,5-dihydroxy-6-heptenoic acid sodium salts

  摘要：

  Compounds comprising a series of 7-[2-(4-fluorophenyl)-4,5,6,7-tetrahydro-2H-indazol-3-yl]-3,5-dihydroxy-6-heptenoic acid sodium salts (18) were synthesized and tested for their ability to inhibit HMG-CoA reductase in a partially purified enzyme preparation and cholesterol biosynthesis from acetate in cultured HEP-G2 cells. Changing the size of the saturated ring of the tetrahydroindazole nucleus did not improve potency, but incorporation of substituents at the 7-position resulted in up to 1700-fold improvement in inhibitory potency. Structure-activity studies revealed that the most potent compounds possess a substituted benzyl group at the 7-position, with a preference for steric bulk at the para position of the benzene ring. The most potent enzyme inhibitor (18t, IC50 = 3.0 nM) is approximately 3-fold more potent than lovastatin sodium salt (2). The most potent cholesterol biosynthesis inhibitor in HEP-G2 cells (18q, IC50 = 0.078 muM) is slightly less potent than 2 (sodium salt). Molecular modeling studies suggested that, when compared to the parent compound (18b) lacking the appropriate 7-substituent, 18t overlaps better with 2 and literature inhibitors 5 and 6 in a hydrophobic binding region adjacent to the enzyme active site.

  DOI：

  10.1021/jm00075a024
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 乙醇 、 镍 作用下， 生成 2-(4-methylbenzyl)cyclohexanone
  参考文献：
  名称：

  Colonge; Sibeud, Bulletin de la Societe Chimique de France, 1952, p. 786,788

  摘要：

  DOI：

文献信息

• Synthesis and structural characterization of facile ruthenium(II) hydrazone complexes: Efficient catalysts in α-alkylation of ketones with primary alcohols via hydrogen auto transfer
  作者：Subbarayan Vijayapritha、Kaliyappan Murugan、Periasamy Viswanathamurthi、Paranthaman Vijayan、Chinnasamy Kalaiarasi

  DOI：10.1016/j.ica.2020.119887

  日期：2020.11

  successfully applied as catalysts in α -alkylation of aliphatic and aromatic ketones with alcohols via borrowing hydrogen strategy. Various parameters such as base, solvent, temperature, time and catalyst loading on the catalytic activity were analyzed. From the results, the catalyst 1 was found to be the best catalyst for α-alkylation reaction to obtain excellent yield. The catalytic system has a broad

  摘要为了开发新的配合物，新的Ru（II）配合物（1-3）由[Ru（SAL-HBT）（CO）（AsPh3）2]，[Ru（VAN） -HBT）（CO）（AsPh3）2]和[Ru（NAP-HBT）（CO）Cl（AsPh3）2] [SAL-HBT =（水杨基（（2-（苯并噻唑-2基）肼基）甲基苯酚））， VAN-HBT = 2-（（（2-（苯并噻唑-2-基）肼基）甲基）-6甲氧基苯酚）和NAP-HBT =萘基-2-（（2-（苯并噻唑-2-基）肼基）甲基苯酚）合成。通过令人满意的元素分析，各种光谱技术（IR，（1H，13C）NMR）以及质谱法确定了它们的身份。钌（II）离子具有扭曲的八面体几何形状的六配位体。在配合物1和2中，配体通过形成N 1 N供体5元和N 2 O供体6元螯合环而以双阴离子三齿形式配位。然而，在配合物3中，配体通过形成N 1 N供体五元环以单阴离子二齿形式配位。新的钌（II）羰基
• Catalytic Carbonyl-Olefin Metathesis of Aliphatic Ketones: Iron(III) Homo-Dimers as Lewis Acidic Superelectrophiles
  作者：Haley Albright、Paul S. Riehl、Christopher C. McAtee、Jolene P. Reid、Jacob R. Ludwig、Lindsey A. Karp、Paul M. Zimmerman、Matthew S. Sigman、Corinna S. Schindler

  DOI：10.1021/jacs.8b11840

  日期：2019.1.30

  carbon-carbon bond formation. However, currently available synthetic protocols rely exclusively on aryl ketone substrates while the corresponding aliphatic analogs remain elusive. We herein report the development of Lewis acid-catalyzed carbonyl-olefin ring-closing metathesis reactions for aliphatic ketones. Mechanistic investigations are consistent with a distinct mode of activation relying on the in

  催化羰基-烯烃复分解反应最近已被开发为形成碳-碳键的有力工具。然而，目前可用的合成协议完全依赖于芳基酮底物，而相应的脂肪族类似物仍然难以捉摸。我们在此报告了路易斯酸催化的脂肪族酮羰基-烯烃闭环复分解反应的发展。机理研究与依赖于原位形成的均双金属单桥联铁 (III)-二聚体作为假定的活性催化物质的独特活化模式一致。这些“超亲电试剂”充当更强大的路易斯酸催化剂，在单个铁 (III) 单体结合后形成。虽然之前假设存在这种路易斯酸活化模式，它尚未应用于催化环境。所提出的见解有望通过建立在“超亲电试剂”的活化原理基础上，进一步推动路易斯酸催化的发展，并拓宽催化羰基-烯烃复分解反应的当前范围。
• Enantioselective Protonation of Enol Esters with Bifunctional Phosphonium/Thiourea Catalysts
  作者：Eiji Yamamoto、Kodai Wakafuji、Yusuke Mori、Gaku Teshima、Yuki Hidani、Makoto Tokunaga

  DOI：10.1021/acs.orglett.9b01216

  日期：2019.6.7

  Bifunctional phosphonium/thioureas derived from tert-leucine behaved as highly selective catalysts for enantioselective protonation of enol esters, providing α-chiral ketones in yields of up to 99% with high enantioselectivities (up to 98.5:1.5 er). Control experiments clarified that a bulky tert-butyl group and phosphonium and thiourea moieties were necessary to achieve such high stereoselectivity

  衍生自叔亮氨酸的双官能phospho /硫脲可作为烯醇酯对映选择性质子化的高选择性催化剂，以高对映选择性（高达98.5：1.5 er）提供α-手性酮，收率高达99％。对照实验表明，大的叔丁基基团以及phospho和硫脲部分对于实现如此高的立体选择性是必需的。此外，机理研究表明，该催化剂已转化为相应的甜菜碱，可作为单分子催化剂。
• <i>β</i>-Arylation of oxime ethers using diaryliodonium salts through activation of inert C(sp)–H bonds using a palladium catalyst
  作者：Jing Peng、Chao Chen、Chanjuan Xi

  DOI：10.1039/c5sc03903g

  日期：——

  Palladium catalyzed selectiveβ-arylation of oxime ethers was realized using diaryliodonium salts as the key arylation reagents.

  钯催化的氧肟醚的选择性β-芳基化反应是利用二芳基碘盐作为关键的芳基化试剂实现的。
• A facile and practical method of preparing optically active α-monosubstituted cycloalkanones by thermodynamically controlled deracemization
  作者：Hiroto Kaku、Aya Nakamaru、Makoto Inai、Takeshi Nishii、Mitsuyo Horikawa、Tetsuto Tsunoda

  DOI：10.1016/j.tet.2010.09.085

  日期：2010.11

  efficiency of this thermodynamically controlled deracemization was strongly influenced by the mixture ratio of the solvent, H2O/MeOH. Based on this finding, an improved method of preparing (R)-2-monosubstituted cycloalkanones with higher optical purity was developed. For example, (R)-2-(4-methylbenzyl)cyclohexanone (5) was obtained in 85% yield with 98% ee, when a 1:1 mixture of H2O/MeOH was used as the solvent

  当在碱性MeOH水溶液中将TADDOLs（例如1a，b）用作主体分子时，外消旋的2-单取代的环烷酮被转化为R-异构体。该热力学控制的脱硝的效率受到溶剂H 2 O / MeOH的混合比的强烈影响。基于该发现，开发了制备具有更高光学纯度的（R）-2-单取代的环烷酮的改进方法。例如，（- [R）-2-（4-甲基苄基）环己酮（5以85％的产率得到98％ee的，当1）：H 1混合物2中使用O / MeOH作为溶剂中的存在1a。