6-amino-3-methyl-1-phenyl-4-(4-(trifluoromethyl)phenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile | 326915-68-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 6-amino-3-methyl-1-phenyl-4-(4-(trifluoromethyl)phenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
• 英文别名: 6-amino-4-(4-(trifluoromethyl)phenyl)-1,4-dihydro-3-methyl-1-phenylpyrano[2,3-c]pyrazole-5-carbonitrile；6-amino-3-methyl-1-phenyl-4-[4-(trifluoromethyl)phenyl]-1H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile；6-amino-3-methyl-1-phenyl-4-[4-(trifluoromethyl)phenyl]-4H-pyrano[2,3-c]pyrazole-5-carbonitrile
• CAS: 326915-68-8
• 化学式: C₂₁H₁₅F₃N₄O
• 分子量: 396.372
• InChiKey: XRTDHHGQZROQLM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  29
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  76.9
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  对三氟甲基苯甲醛 、 依达拉奉 、 丙二腈 在 silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride 作用下， 以 乙醇 为溶剂， 反应 0.5h， 以94%的产率得到6-amino-3-methyl-1-phenyl-4-(4-(trifluoromethyl)phenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
  参考文献：
  名称：

  二氧化硅键合的5-正丙基-八氢嘧啶[1,2- a ]氮杂pin鎓（SB-DBU）Cl是一种高效，多相且可循环利用的二氧化硅负载型离子液体催化剂，用于合成苯并[ b ]吡喃，双（苯并[ b ]吡喃）和螺吡喃衍生物

  摘要：

  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。

  DOI：

  10.1016/j.molcata.2013.02.022

文献信息

• Glycerol as a biodegradable and reusable promoting medium for the catalyst-free one-pot three component synthesis of 4H-pyrans
  作者：Hamid Reza Safaei、Mohsen Shekouhy、Sudabeh Rahmanpur、Athar Shirinfeshan

  DOI：10.1039/c2gc35135h

  日期：——

  Glycerol is applied as a green, biodegradable and reusable promoting medium for one-pot three component synthesis of 4H-pyrans under catalyst-free conditions. A broad range of substrates including aromatic and heteroaromatic aldehydes, isatine derivatives, acenaphthenequinone and ninehydrine are condensed with carbonyl compounds possessing a reactive α-methylene group and alkylmalonates. All reactions are completed in short times, and the products are obtained in good to excellent yields. The reaction medium could be recycled and reused several times without any loss of efficiency.

  甘油作为绿色、生物可降解且可重复利用的促进介质，在无催化剂条件下用于一锅法三组分合成4H-吡喃。广泛的一系列底物，包括芳香和杂环醛、吲哚醌衍生物、苊醌和九氢吲哚，与具有活性α-亚甲基的羰基化合物及烷基丙二酸酯进行缩合反应。所有反应均在短时间内完成，产物收率良好至优异。反应介质可回收并重复使用多次，效率无任何损失。
• 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。
• Electro-catalyzed multicomponent transformation of 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one to 1,4-dihydropyrano[2,3-c]pyrazole derivatives in green medium
  作者：Zahra Vafajoo、Nourallah Hazeri、Malek Taher Maghsoodlou、Hojat Veisi

  DOI：10.1016/j.cclet.2015.04.016

  日期：2015.8

  An efficient and convenient synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives is described, using the electrogenerated anion of ethanol as the base in the presence of sodium bromide as an supporting electrolyte in a one-pot, three component condensation of malononitrile, aromatic aldehydes and 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. The reaction is carried out in an undivided cell containing an iron electrode as the cathode and a graphite electrode as the anode, at a constant current at room temperature. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.