methyl 2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate

• 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: methyl 2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate
• 英文别名: methyl 2-amino-4-(4-chlorophenyl)-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4H-chromene-3-carboxylate；methyl 2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-6,8-dihydro-4H-chromene-3-carboxylate
• 化学式: C₁₉H₂₀ClNO₄
• 分子量: 361.825
• InChiKey: ANTTUCZKNUXJJO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  78.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  methyl 2-cyano-3-(4-chlorophenyl)propenoate 、 5,5-二甲基-1,3-环己二酮 在 aluminum oxide 、 potassium fluoride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以63%的产率得到methyl 2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate
  参考文献：
  名称：

  A Convenient Synthesis of 5-Oxo-5,6,7,8-tetrahydro-4H-benzo-[b]-pyran Derivatives Catalyzed by KF-Alumina

  摘要：

  A series of 5-oxo-5,6,7,8-tetrahydro-4H-benzo-[b]-pyran derivatives were prepared by the reaction of arylmethylidenemalononitriles or 2-cyano-3-aryl-1-acrylate with 5,5-dimethyl- 1, 3-cyclohexanedione (dimedone) in DMF at room temperature catalyzed by KF-alumina. The structure of the product was confirmed by X-ray analysis.

  DOI：

  10.1081/scc-120015567

文献信息

• Silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (SB-DBU)Cl as a highly efficient, heterogeneous and recyclable silica-supported ionic liquid catalyst for the synthesis of benzo[b]pyran, bis(benzo[b]pyran) and spiro-pyran derivatives
  作者：Alireza Hasaninejad、Nooshin Golzar、Maryam Beyrati、Abdolkarim Zare、Mohammad Mahdi Doroodmand

  DOI：10.1016/j.molcata.2013.02.022

  日期：2013.6

  The reaction of 3-chloropropyl silica (SilprCl) with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in dry acetone affords silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (SB-DBU)Cl as a new silica-supported ionic liquid catalyst. Afterward, (SB-DBU)Cl is used for the efficient synthesis of 4H-benzo[b]pyran derivatives via the one-pot, three-component reaction of carbonyl compounds (cyclohexane-1

  3-氯丙基二氧化硅（SilprCl）与1,8-二氮杂双环[5.4.0]十一碳-7-烯（DBU）在干燥的丙酮中的反应得到二氧化硅键合的5-正丙基-八氢-嘧啶基[1,2- a]氯化ze嗪（SB-DBU）Cl作为新型的二氧化硅负载型离子液体催化剂。之后，（SB-DBU）Cl通过羰基化合物（环己烷-1,3-二酮，5,5-一锅法）的三锅法有效合成4 H-苯并[ b ]吡喃衍生物。（1，3-二甲基环己烷-1，3-二酮或3-甲基-1-苯基-2-吡唑啉-5-酮）与芳族醛和烷基丙二酸酯。此外，一些新颖的双（苯并[ b使用（SB-DBU）Cl合成[] pyran] s和在结构上含有羟吲哚和/或喹喔啉部分的多种结构多样的螺-吡喃。将催化剂循环使用十五次，收率不变。
• Synthesis and X-ray crystal structures of polyfunctionalized 4H-chromene derivatives via tricomponent reaction with Knoevenagel adducts as intermediates in aqueous medium
  作者：Lucas Lima Zanin、David Esteban Quintero Jimenez、Matheus Pereira de Jesus、Luan Farinelli Diniz、Javier Ellena、André Luiz Meleiro Porto

  DOI：10.1016/j.molstruc.2020.129226

  日期：2021.1

  triethylamine as catalyst. Twenty 4H-chromene derivatives were synthesized with 50–95% yields from aromatic aldehydes, 5,5-dimethyl-1,3-cyclohexadione and malononitrile or methyl cyanoacetate, being further characterized by Fourier Transform Infrared and Nuclear Magnetic Resonance. We also report three crystal structures from the synthesized chromene derivatives, by single-crystal X-ray diffraction, showing

  摘要 Chromenes 及其衍生物是一类重要的化合物，以其生物学特性而闻名。在本研究中，描述了获得 4H-色烯衍生物的合成方法。研究了两种途径，第一种是使用 Knoevenagel 加合物作为试剂的双组分反应，第二种是使用一锅三组分反应，均在微波辐射下，使用 H2O 作为溶剂，三乙胺作为催化剂。从芳香醛、5,5-二甲基-1,3-环己二酮和丙二腈或氰基乙酸甲酯合成了 20 种 4H-色烯衍生物，产率 50-95%，进一步通过傅里叶变换红外和核磁共振进行表征。我们还通过单晶 X 射线衍射报告了合成色烯衍生物的三种晶体结构，
• Uncatalyzed Reactions in Aqueous Media: Three-Component, One-Pot, Clean Synthesis of Tetrahydrobenzo[b]pyran Derivatives
  作者：Sunita B. Bandgar、Babasaheb P. Bandgar、Balaji L. Korbad、Jalinder V. Totre、Sachin Patil

  DOI：10.1071/ch06461

  日期：——

  The synthesis of various tetrahydrobenzo[b]pyran derivatives has been carried out by means of an uncatalyzed, three-component, one-pot clean condensation of aromatic aldehydes, reactive methylene compounds, and dimidone in aqueous medium. Simple workup, and mild and neutral conditions that give quantitative yields of products in pure form, are the attractive features of this method.

  各种四氢苯并[b]吡喃衍生物的合成是通过芳香醛、反应性亚甲基化合物和二米酮在水介质中的非催化、三组分、一锅清洁缩合进行的。简单的后处理，温和和中性的条件，可以定量获得纯产品的产量，是这种方法的吸引人的特点。
• (<i>S</i>)-Proline as a Neutral and Efficient Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[<i>b</i>]pyran Derivatives in Aqueous Media
  作者：Saeed Balalaie、Morteza Bararjanian、Ali Mohammad Amani、Barahman Movassagh

  DOI：10.1055/s-2006-926227

  日期：——

  (S)-Proline has been used as a mild, efficient and neutral catalyst for synthesis of various 4H-benzo[b]pyran derivatives via a one-pot three-component condensation of aromatic aldehydes, ­active methylene compounds, and dimedone in aqueous media. This method offers the advantages of proceeding and neutral and mild conditions, giving high to excellent yields of the products and simple workup.

  (S)-脯氨酸已被用作一种温和、高效且中性的催化剂，通过在水介质中一步三组分缩合反应，将芳香醛、活性甲基化合物和二甲基庚二酮合成各种4H-苯并[b]吡喃衍生物。该方法具有中性且温和的条件进行、产品收率高（从高到优秀）且后处理简单的优点。
• Silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO): A highly efficient, reusable and new heterogeneous catalyst for the synthesis of 4H-benzo[b]pyran derivatives
  作者：Alireza Hasaninejad、Mohsen Shekouhy、Nooshin Golzar、Abdolkarim Zare、Mohammad Mahdi Doroodmand

  DOI：10.1016/j.apcata.2011.04.012

  日期：2011.7

  3-chloropropyl silica with diazabicyclo[2.2.2]octane in dry acetone affords silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO) as a new basic catalyst. The catalyst is used for the efficient synthesis of 4H-benzo[b]pyran derivatives via one-pot three-component reaction of cyclic ketones/1,3-diketones with aromatic aldehydes and alkylmalonates.

  3-氯丙基二氧化硅与二氮杂双环[2.2.2]辛烷在干燥丙酮中的反应提供了与二氧化硅键合的正丙基-4-氮杂-1-氮杂双环[2.2.2]辛烷氯化物（SB-DABCO），作为一种新的碱性催化剂。通过环酮/ 1,3-二酮与芳族醛和丙二酸烷基酯的一锅三组分反应，该催化剂可用于高效合成4 H-苯并[ b ]吡喃衍生物。