8-methoxy-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4(1H)-one | 1273552-02-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 8-methoxy-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4(1H)-one
• 英文别名: 8-methoxy-3-methyl-1-phenyl-1H,4H-chromeno[4,3-c]pyrazol-4-one；8-methoxy-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4-one
• CAS: 1273552-02-5
• 化学式: C₁₈H₁₄N₂O₃
• 分子量: 306.321
• InChiKey: PUUHURQVIRZJNU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  53.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  6-methoxy-3-[1-(phenylhydrazono)-ethyl]-chromen-2-one 在 copper(ll) sulfate pentahydrate 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以92%的产率得到8-methoxy-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4(1H)-one
  参考文献：
  名称：

  以空气为氧化剂，铜催化3-酰基香豆素Hy的环化反应：高效合成吡唑类香豆素衍生物

  摘要：

  据报道，高效，便捷的Cu催化形成了铬诺[4,3 - c ]吡唑-4（1 H）-酮。在这个原子经济过程中，容易获得的3酰基香豆素通过直接的C–N键形成而被氧化环化。空气已成功地用作氧化剂，具有重要的经济和环境优势。在此过程中，可以使用各种3-酰基香豆素。

  DOI：

  10.1002/jhet.2052

文献信息

• X-Ray Supramolecular Structure, NMR Spectroscopy and Synthesis of 3-Methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-ones Formed by the Unexpected Cyclization of 3-[1-(Phenyl-hydrazono)ethyl]-chromen-2-ones
  作者：Itzia I. Padilla-Martinez、Irma Y. Flores-Larios、Efren V. García-Baez、Jorge Gonzalez、Alejandro Cruz、Francisco J. Martínez-Martinez

  DOI：10.3390/molecules16010915

  日期：——

  The molecular structures of nine 3-methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-one isomers, obtained by the oxidative cyclization of the corresponding 1-phenylhydrazono chromen-2-ones with copper acetate as catalyst, are reported. The molecular and supramolecular structures of the 8-chloro, 8-bromo- and 8-nitro isomers 2b-d, were established by X-ray diffraction. The halogenated isomers 2b and 2c are

  九种 3-methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-one 异构体的分子结构，通过相应的 1-phenylhydrazono chromen-2-ones 与乙酸铜氧化环化获得催化剂, 报道. 8-氯、8-溴和8-硝基异构体2b-d 的分子和超分子结构通过X 射线衍射确定。卤代异构体2b和2c是同晶型物，它们结晶为三斜晶系，空间群P-1，在不对称单元中有两个分子。化合物 2d 结晶为单斜晶系，空间群为 P2₁/m，晶胞中有两个分子。1-苯环 [Cg(4)] 几乎与色烯-吡唑环系统垂直。这种构象与溶液中苯环对 H-9 的各向异性 NMR 屏蔽效应一致。超分子结构几乎由CH···A (A = O, p) 和面对面的p-堆叠相互作用控制。色烯和吡唑环之间观察到的 p 堆积趋势由每种化合物中最佳供体环和受体环之间的重叠给出。
• One-Pot Cascade Access to Ru(II)-Catalyzed Regioselective C(sp²)-H Activation/Alkenylation of Chromeno[4,3-<i>c</i>]pyrazol-4-ones and Their Emission Solvatochromic Studies
  作者：Dinesh Singla、Kamaldeep Paul

  DOI：10.1021/acs.joc.2c02130

  日期：2022.12.16

  Herein, one-pot cascade synthesis of chromeno[4,3-c]pyrazol-4-ones and their Ru(II)-catalyzed regioselective ortho-alkenylation using imine as a weak directing group are done with moderate to good yields. The reaction proceeds through a three-step domino process during which intermediates are also isolated in excellent yields. In addition, this methodology generates a number of interesting fluorophores

  在此，使用亚胺作为弱导向基团的一锅法级联合成 chromeno[4,3 - c ]pyrazol-4-ones 及其 Ru(II) 催化的区域选择性邻位烯基化反应具有中等至良好的收率。反应通过三步多米诺骨牌过程进行，在此过程中中间体也以优异的产率分离。此外，该方法还产生了许多具有供体和受体基团的有趣荧光团，这些荧光团显示出正溶剂化显色现象。
• Synthesis, anticancer activity and photophysical properties of novel substituted 2-oxo-2H-chromenylpyrazolecarboxylates
  作者：J. Ashok Kumar、G. Saidachary、G. Mallesham、B. Sridhar、Nishant Jain、Shashi Vardhan Kalivendi、V. Jayathirtha Rao、B. China Raju

  DOI：10.1016/j.ejmech.2013.03.042

  日期：2013.7

  2-Oxo-2H-chromenylpyrazolecarboxylates (8a-h and 12a-zb) have been synthesized by [3 + 2] cycloaddition of 2H-chromenophenylhydrazones (7a-h and 11a-w) with diethyl/dimethylbut-2-ynedioates. Phenylchromeno[4,3-c]pyrazol-4(1H)-ones (13i-n) were prepared from corresponding phenylhydrazones (7a-h) with catalytic amount of piperidine in presence of pyridine as a solvent at 100 degrees C. All the synthesized compounds (8a-h, 12a-zb and 13a-n) were screened for anticancer activity against three human cancer cell lines such as prostate (DU-145), lung adenocarcinoma (A549), and cervical (HeLa) by standard MTT assay method. Further, photophysical properties (UV and fluorescence) for these compounds were discussed. (C) 2013 Elsevier Masson SAS. All rights reserved.
• Copper-catalyzed Cyclization of 3-Acylcoumarin Hydrazone using Air as the Oxidant: Efficient Synthesis of Pyrazole-Fused Coumarin Derivatives
  作者：Hui-Yan Wang、Xue-Cheng Liu、Zhi-Bin Huang、Da-Qing Shi

  DOI：10.1002/jhet.2052

  日期：2015.3

  3‐c]pyrazol‐4(1H)‐ones is reported. In this atom economic process, readily available 3‐acylcoumarin hydrazone is oxidative cyclized by direct C–N bond formation. Air has been successfully used as an oxidant, which has important economic and environmental advantages. A broad scope of 3‐acylcoumarin hydrazones can be utilized in this process.

  据报道，高效，便捷的Cu催化形成了铬诺[4,3 - c ]吡唑-4（1 H）-酮。在这个原子经济过程中，容易获得的3酰基香豆素通过直接的C–N键形成而被氧化环化。空气已成功地用作氧化剂，具有重要的经济和环境优势。在此过程中，可以使用各种3-酰基香豆素。