6-Methyl-2-(4-methylanilino)-4-oxochromene-3-carbaldehyde | 755009-22-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 6-Methyl-2-(4-methylanilino)-4-oxochromene-3-carbaldehyde
• CAS: 755009-22-4
• 化学式: C₁₈H₁₅NO₃
• 分子量: 293.322
• InChiKey: ZXMDGNOTHCGALV-UHFFFAOYSA-N

物化性质

• 熔点：
  168 °C
• 沸点：
  442.7±45.0 °C(Predicted)
• 密度：
  1.350±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  6-Methyl-2-(4-methylanilino)-4-oxochromene-3-carbaldehyde 在 三氯氧磷 作用下， 反应 3.0h， 以69%的产率得到4-chloro-3-dichloromethyl-2-N-(p-tolyl)imino-6-methyl-2H-1-benzopyran
  参考文献：
  名称：

  Maiti, Sourav; Biswas, Pritam; Ghosh, Jaydip, Journal of the Indian Chemical Society, 2013, vol. 90, # 10, p. 1617 - 1623

  摘要：

  DOI：
• 作为产物：
  描述：

  6-甲基-4-氧-4H-1-苯并吡喃-3-甲醛 在 氯化铵 、 锌 作用下， 以 乙醇 为溶剂， 反应 2.0h， 生成 6-Methyl-2-(4-methylanilino)-4-oxochromene-3-carbaldehyde
  参考文献：
  名称：

  A One-Pot Rearrangement of 2-(N-Alkyl-N-aryl)aminochromone-3-carbaldehyde to N-Alkyl-3-salicyloyl-2-quinolone - An Antileishmanial Agent

  摘要：

  2-(N-芳基)氨基香豆素-3-醛在醋酸中加热时没有任何变化，而在相同反应条件下，2-(N-烷基-N-芳基)氨基香豆素-3-醛则重排为3-水杨酰基-2-喹喏酮，后者表现出抗利什曼病活性。

  DOI：

  10.1055/s-0030-1260977

文献信息

• Regio- and stereoselective synthesis of 1-benzopyrano[2,3-b]pyrrolo[2,3-d]pyridines: A microwave-accelerated intramolecular [3+2] cycloaddition reaction of azomethine ylide
  作者：Sourav Maiti、T. M. Lakshmykanth、Suman Kalyan Panja、Ranjan Mukhopadhyay、Ayan Datta、Chandrakanta Bandyopadhyay

  DOI：10.1002/jhet.567

  日期：2011.7

  Regio‐ and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular [3+2] cycloaddition reaction involving azomethine ylide. The reactions were carried out thermally as well as by irradiation with microwave. The latter process accelerates the reaction. The selectivities were investigated by density functional theory

  具有苯甲酮，吡咯烷和哌啶环的四环化合物的区域和立体选择性合成已通过涉及偶氮甲碱叶立德的分子内[3 + 2]环加成反应完成。反应既可以进行热反应，也可以通过微波辐射进行。后面的过程加速了反应。通过密度泛函理论计算研究了选择性。J.杂环化​​学。（2011）。
• Effects of substituent and catalyst on the intramolecular Povarov reaction—synthesis of chromenonaphthyridines
  作者：Sourav Maiti、Suman Kalyan Panja、Koushik Sadhukhan、Jaydip Ghosh、Chandrakanta Bandyopadhyay

  DOI：10.1016/j.tetlet.2011.11.130

  日期：2012.2

  2-(N-Alkenyl-N-aryl)aminochromone-3-carbaldehyde undergoes intramolecular Povarov reaction with aromatic amines in the presence of Ph3P·HClO4 to produce chromenonaphthyridine. The effects of substituent and catalyst have been studied. The substituent on the alkenyl part of aminochromone controls the mode of reaction as well as the stereochemistry of the product.

  2-（N-烯基-N-芳基）氨基色酮-3-甲醛在Ph 3 P·HClO 4存在下与芳香胺进行分子内Povarov反应，生成壬基萘并吡啶。已经研究了取代基和催化剂的作用。氨基色酮的烯基部分上的取代基控制反应的方式以及产物的立体化学。
• Substituent-controlled domino-Knoevenagel-hetero Diels–Alder reaction—a one-pot synthesis of polycyclic heterocycles
  作者：Sourav Maiti、Suman Kalyan Panja、Chandrakanta Bandyopadhyay

  DOI：10.1016/j.tet.2010.07.028

  日期：2010.9

  The reaction of 2-(N-alkenyl-N-aryl)amino-4-oxo-4H-1-benzopyran-3-carbaldehyde with dimedone/Meldrum’s acid/4-hydroxycoumarin by heating in ethanol in the presence of pyridine produces polycyclic heterocycles bearing pyridine and pyran rings in a one-pot reaction. The effect of substituents on N-atom of the amino function controls the mode of reaction. Terminal alkenes prefer intramolecular Michael

  通过在吡啶存在下于乙醇中加热，使2-（N-烯基-N-芳基）氨基-4-氧代-4 H -1-苯并吡喃-3-甲醛与二甲酮/麦德鲁姆酸/ 4-羟基香豆素反应生成多环一锅反应中带有吡啶和吡喃环的杂环。取代基对氨基官能团的N-原子的影响控制了反应方式。末端烯烃偏爱分子内迈克尔型反应，但非末端烯烃偏爱Diels-Alder反应，而在类似条件下，2-（N-烷基-N-烯丙基）氨基-4-氧代-4 H -1-苯并吡喃-3 -甲醛经历多米诺-Knoevenagel-杂Diels-Alder反应。
• A one-pot synthesis of 3,3′-methylenebis(2-arylamino-4H-chromen-4-one) from C-(4-oxo-4H-1-benzopyran-3-yl)-N-arylnitrone
  作者：Sourav Maiti、Suman Kalyan Panja、Chandrakanta Bandyopadhyay

  DOI：10.1016/j.tetlet.2009.04.087

  日期：2009.7

  2-(Arylamino)-4-oxo-4H-chromene-3-carbaldehyde 3 (R2 = aryl) produces 12H-chromeno[2,3-b]quinolin-12-one 4 when treated with sarcosine, piperidine or diethylamine, but produces 3,3′-methylenebis(2-arylamino-4H-chromen-4-one) 8 when treated with the same amine in the presence of an excess of formaldehyde. Compound 3 (R2 = alkyl) was found to be less reactive than the N-aryl analogues towards the deformylative

  2-（芳基氨基）-4-氧代-4- ħ色烯-3-甲醛3（R 2  =芳基）产生12 ħ -chromeno [2,3- b ]喹啉-12-酮4当与肌氨酸，哌啶处理或二乙胺，但是当在过量甲醛存在下用相同的胺处理时，会生成3,3'-亚甲基双（2-芳基氨基-4 H-铬-4--4-酮）8。发现化合物3（R 2  ＝烷基）对N型芳基类似物的反应性低于N-芳基类似物。
• Synthesis of 6,8-Diarylimino-7<i>H</i>-Pyrano[3,2-<i>c</i>:5,6-<i>c’</i>]Dicoumarins; Chemoselective Hydrolysis of the Ether- and Imino-Functions
  作者：Sourav Maiti、Suman Kalyan Panja、Chandrakanta Bandyopadhyay

  DOI：10.3184/174751911x12964930076485

  日期：2011.2

  POCl₃-induced dehydration of 3,3'-methylenedi(2-arylamino-4 H-chromen-4-ones) gives 6,8-diarylimino-7 H-pyrano[3,2- c:5,6- c’]dicoumarins, which undergo chemoselective hydrolysis of the imino function to form 7 H-pyrano[3,2- c:5,6- c’]dicoumarins by heating with HCl in methanol However, cleavage of the ether function occurs upon heating in acetic acid to give 3,3'-methylenedi(2-arylamino-4 H-chromen-4-ones).

  POCl3 诱导的 3,3'-亚甲基二（2-芳基氨基-4 H-色烯-4-酮）脱水生成 6,8-二亚氨基-7 H-吡喃并[3,2-c:5,6-c']二香豆素：不过，在乙酸中加热时，醚功能会发生裂解，生成 3,3'-亚甲基二（2-芳基氨基-4 H-色烯-4-酮）。