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2-amino-3-cyano-7,7-dimethyl-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran | 129354-36-5

中文名称
——
中文别名
——
英文名称
2-amino-3-cyano-7,7-dimethyl-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran
英文别名
2-amino-5,6,7,8-tetrahydro-4-(4-methoxyphenyl)-7,7-dimethyl-5-oxo-4H-chromene-3-carbonitrile;2-amino-4-(4-methoxyphenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile;2-amino-4-(4-methoxyphenyl)-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4H-chromene-3-carbonitrile;2-amino-3-cyano-4-(4-methoxyphenyl)-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran;2-amino-3-cyano-5,6,7,8-tetrahydro-7,7-dimethyl-4-(4'-methoxyphenyl)-5-oxo-4H-benzopyran;2-amino-4-(4-methoxyphenyl)-7,7-dimethyl-5-oxo-6,8-dihydro-4H-chromene-3-carbonitrile
2-amino-3-cyano-7,7-dimethyl-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran化学式
CAS
129354-36-5
化学式
C19H20N2O3
mdl
——
分子量
324.379
InChiKey
HPFBLDVLKFCLND-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    199-201 °C
  • 沸点:
    560.5±50.0 °C(Predicted)
  • 密度:
    1.25±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.8
  • 重原子数:
    24
  • 可旋转键数:
    2
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.37
  • 拓扑面积:
    85.3
  • 氢给体数:
    1
  • 氢受体数:
    5

SDS

SDS:38f1e9993d522a4a66729e1bd22dc78c
查看

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    2-amino-3-cyano-7,7-dimethyl-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo[b]pyran对甲苯磺酸 作用下, 反应 7.0h, 以78%的产率得到4-(4-methoxy-phenyl)-7,7-dimethyl-2,5-dioxo-1,2,3,4,5,6,7,8-octahydro-quinoline-3-carbonitrile
    参考文献:
    名称:
    Nano crystalline ZnO catalyzed one pot multicomponent reaction for an easy access of fully decorated 4H-pyran scaffolds and its rearrangement to 2-pyridone nucleus in aqueous media
    摘要:
    A green and highly efficient protocol has been developed for the synthesis of 4H-pyran scaffolds installing a one-pot three-component coupling reaction of an aldehyde, malononitrile, and a 1,3-diketo compound using nano structured ZnO as the catalyst in aqueous alcoholic medium. A greener method to synthesize 3,4-dihydropyridin-2-one has also been developed by rearranging 4H-pyran derivatives in aqueous medium applying p-TSOH as the right catalyst source. A wide spectrum of functional groups was tolerated in both the developed synthetic protocols with good to excellent yield of the targeted molecules. (c) 2012 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tetlet.2012.06.086
  • 作为产物:
    参考文献:
    名称:
    新型9,9-二甲基-8,12-二氢-9 H-色基[3,2- e ][1,2,4]三唑并[1,5 - c ]嘧啶-11(10 H )-one的合成衍生品
    摘要:
    9,9-二甲基-8,12-二氢-9H-色基[3,2-e][1,2,4]三唑并[1,5-c]嘧啶-11(10H)-one衍生物的合成原甲酸三乙酯或芳香醛与色诺[2,3-d]嘧啶衍生物的反应,其由一水合肼和甲酰亚胺衍生物反应制备。通过 2-氨基-7,7-二甲基-5-氧代-4-芳基-5,6,7,8-四氢-4H-色烯-3-腈衍生物和原甲酸三乙酯的反应合成甲酰亚胺。12-(4-甲氧基苯基)-9,9-二甲基-8,12-二氢-9H-色基[3,2-e][1,2,4]三唑并[1,5-c]嘧啶- 11(10H)-one是通过单晶X射线衍射分析确定的。
    DOI:
    10.3184/174751914x14053476598397
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文献信息

  • Synthesis of functionalized chromene and spirochromenes using l -proline-melamine as highly efficient and recyclable homogeneous catalyst at room temperature
    作者:Sakkani Nagaraju、Banoth Paplal、Kota Sathish、Santanab Giri、Dhurke Kashinath
    DOI:10.1016/j.tetlet.2017.09.060
    日期:2017.11
    commercially cheap l-proline and melamine for the synthesis of chromenes and spirochromenes (spirooxindoles) via multicomponent reactions at room temperature. Systematic studies were conducted in order to achieve desired reactivity and recyclability of the catalyst using various α-amino acids and aromatic amines as donor-acceptor pairs. Among the screened combinations, l-proline and melamine (3:1 ratio;
    使用便宜的1-脯氨酸和三聚氰胺开发了一种有效且可循环使用的均相催化剂,用于在室温下通过多组分反应合成色烯和螺环色酮(螺并辛多烯)。为了使用各种α-氨基酸和芳族胺作为供体-受体对,进行系统研究以实现所需的反应性和催化剂的可回收性。在筛选的组合中,l脯氨酸和三聚氰胺(3:1的比例;占总重量的3 mol%)被认为是最佳的催化剂,可以在室温下非常短的时间内(1-15分钟)以优异的产率(高达99%)提供所需的产品在DMSO中作为溶剂。通过添加EtOAc来回收催化剂,并且在不损失催化活性的情况下重复使用多达5个循环。
  • One-Pot, Catalyst-Free Synthesis of Spirooxindole and 4<i>H</i>-Pyran Derivatives
    作者:Thanasekaran Ponpandian、Shanmugam Muthusubramanian
    DOI:10.1080/00397911.2013.837488
    日期:2014.3.19
    Abstract The synthesis of biologically valuable spirooxindoles and 4H-pyrans is described under catalyst-free conditions through sequential Knoevenagel–Michael–cyclization reactions from isatin or aromatic aldehyde, malononitrile, and 1,3-dicarbonyl compounds. The reaction conditions are very simple, providing excellent yield. [Supplementary materials are available for this article. Go to the publisher's
    摘要 在无催化剂条件下,通过靛红或芳香醛、丙二腈和 1,3-二羰基化合物的连续 Knoevenagel-Michael-环化反应,合成了具有生物学价值的螺环吲哚和 4H-吡喃。反应条件非常简单,产率极好。[本文提供补充材料。访问出版商的 Synthetic Communications® 在线版,获取以下免费补充资源:完整的实验和光谱细节。] 图形摘要
  • An approach to the synthesis and characterization of HMS/Pr-Rh-Zr as efficient catalyst for synthesis of tetrahydrobenzo[b]pyran and 1,4-dihydropyrano[2,3-c]pyrazole derivatives
    作者:Sahar Abdolahi、Maryam Hajjami、Fatemeh Gholamian
    DOI:10.1007/s11164-021-04411-z
    日期:2021.5
    HMS/Pr-Rh-Zr was successfully synthesized. Also the catalytic activity of HMS/Pr-Rh-Zr is investigated for the synthesis of tetrahydrobenzo[b]pyran derivatives from reaction between aldehyde, malononitrile, dimedone in PEG at 80 °C and synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives from reaction between aldehyde, ethyl acetoacetate, malononitrile and hydrazine hydrate in H2O:EtOH at 35 °C
    本研究的目的是基于六角形介孔二氧化硅的介孔催化剂的合成。HMS支撑物具有出色的特性,例如易于合成,高表面积,大孔体积和虫孔。这些独特的特性似乎将其用作合成非均相催化剂的载体。通过HMS的功能化和将Zr-罗丹宁复合物固定到功能化的HMS中,获得了HMS / Pr-Rh-Zr。FT-IR,XRD,TGA,SEM,EDX,77 K氮气吸附-脱附和ICP技术表征了新型合成催化剂(HMS / Pr-Rh-Zr)。这些技术证实了成功地合成了HMS / Pr-Rh-Zr的非均相催化剂。还研究了HMS / Pr-Rh-Zr的催化活性,用于由醛之间的反应合成四氢苯并[b]吡喃衍生物。在35°C下2 O:EtOH。这些结果证实了HMS / Pr-Rh-Zr表现出良好的催化性能。此外,合成的非均相催化剂可以在反应后回收并重复使用几次而没有任何明显的活性损失。还研究了HMS / Pr-Rh-Zr的锆浸出,因此催化剂的金属浸出非常低。
  • One-pot synthesis of 2-amino-3-cyano-4<i>H</i>-pyrans and pyran-annulated heterocycles using sodium citrate as an organo-salt based catalyst in aqueous ethanol
    作者:Aiborlang Thongni、Pynskhemborlang T. Phanrang、Arup Dutta、Rishanlang Nongkhlaw
    DOI:10.1080/00397911.2021.1998535
    日期:2022.1.2
    shorter reaction time, utilization of eco-friendly solvents, operational simplicity, mild reaction conditions, and maximum product yield. Moreover, the use of sodium citrate as an easily available, cheap and benign catalyst plays a pivotal role from a green perspective, considering its high recyclability and easy recovery. Therefore, this present methodology offers numerous possibilities in terms of large-scale
    摘要 柠檬酸钠作为一种高效催化剂被开发用于合成官能化的 2-氨基-3-氰基-4 H-吡喃和吡喃环化杂环。该方法涉及芳香醛、丙二腈和 1,3-二羰基化合物与 EtOH 的一锅三组分反应:H 2O (1:1 v/v) 在室温下作为溶剂。该协议具有几个优点,例如更短的反应时间、环保溶剂的利用、操作简单、反应条件温和和产品收率最高。此外,考虑到柠檬酸钠的高可回收性和易回收性,从绿色角度来看,柠檬酸钠作为一种易于获得、廉价和良性的催化剂发挥着关键作用。因此,本方法在大规模工业合成或应用于众多有机转化方面提供了许多可能性。此外,还对产物4aa形成的机理途径进行了理论研究,以确定柠檬酸钠对DFT法反应可行性的催化作用,使用B3LYP泛函。
  • 1-Methylimidazolium tricyanomethanide {[HMIM]C(CN)3} as a nano structure and reusable molten salt catalyst for the synthesis of tetrahydrobenzo[b]pyrans via tandem Knoevenagel-Michael cyclocondensation and 3,4-dihydropyrano[c]chromene derivatives
    作者:Mohammad Ali Zolfigol、Neda Bahrami-Nejad、Fatemeh Afsharnadery、Saeed Baghery
    DOI:10.1016/j.molliq.2016.06.069
    日期:2016.9
    An expeditious, experimentally simple and rapid 1-methylimidazolium tricyanomethanide [HMIM]C(CN)3} nano molten salt (NMS) catalyzed tandem Knoevenagel-Michael cyclocondensation procedure for the synthesis of tetrahydrobenzo[b]pyrans was described via reaction between dimedone, aromatic aldehyde and malononitrile under solvent-free conditions at room temperature. Furthermore, 3,4-dihydropyrano[c]chromene
    通过二甲酮之间的反应,描述了一种快速,实验简单且快速的三氰基甲基1-甲基咪唑鎓[HMIM] C(CN)3 }纳米熔融盐(NMS)催化串联Knoevenagel-Michael环缩合反应合成四氢苯并[ b ]吡喃的方法,室温下在无溶剂条件下的芳族醛和丙二腈。此外,在相同条件下,以[HMIM] C(CN)3 } NMS为催化量,通过4-羟基香豆素,芳香醛和丙二腈的缩合反应合成了3,4-二氢吡喃并[ c ]色烯衍生物。
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