摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

2-甲基吡唑并[1,5-a]喹喔啉 | 78564-51-9

中文名称
2-甲基吡唑并[1,5-a]喹喔啉
中文别名
——
英文名称
2-methylpyrazolo[1,5-a]quinoxaline
英文别名
2-methylpyrazolo[2,3-a]quinoxaline
2-甲基吡唑并[1,5-a]喹喔啉化学式
CAS
78564-51-9
化学式
C11H9N3
mdl
——
分子量
183.213
InChiKey
OZAKVOJEWLUMHT-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:
    89-91 °C
  • 密度:
    1.27±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.8
  • 重原子数:
    14
  • 可旋转键数:
    0
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.09
  • 拓扑面积:
    30.2
  • 氢给体数:
    0
  • 氢受体数:
    2

SDS

SDS:a8d12e320b2a713b5f3e04921a4db94c
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:
    参考文献:
    名称:
    异戊烯。1,3-二甲基吡唑并-[1,2- a ]苯并三唑的热加成反应
    摘要:
    标题化合物(3)与乙炔二羧酸二甲酯反应,并加到偶氮甲亚胺部分上,得到经由(7)的2a,4-二甲基-4a,8b,8c-三氮杂戊烯二烯[1,6- ab ]茚-1,2-二羧酸二甲酯(7)。一种两性离子中间体,可被质子溶剂(例如甲醇或水)捕获,得到2- [ o-(3,5-二甲基吡唑-1-基)苯胺基] -3-甲氧基马来酸二甲酯(8)或四甲基3,3'-双-[邻-(3,5-二甲基吡唑-1-基)苯胺基] -2,2'-氧二马来酸酯(9)。环加合物(7)自发逆向加成至甲基3-甲基吡唑并[1,2- a]苯并三唑-1,2-二羧酸酯(12)和自由基裂解,出乎意料地得到4,5-二氢-2-甲基-4-氧杂吡唑并-[2,3 - a ]喹喔啉-3-羧酸甲酯(17)主要产品,以及少量的两种苯并三唑基戊烯酮(14)和(15)。
    DOI:
    10.1039/p19830002491
  • 作为产物:
    描述:
    3,5-二甲基吡唑 在 potassium fluoride 、 亚磷酸三乙酯 作用下, 以 various solvent(s) 为溶剂, 反应 84.0h, 生成 2-甲基吡唑并[1,5-a]喹喔啉
    参考文献:
    名称:
    单线态和三线态氮烯的竞争环化。第8部分。1-(2-硝基苯并苯基)吡唑及相关体系
    摘要:
    已经研究了通过亚磷酸三乙酯的硝基基团脱氧或通过相应叠氮化物的热解或光解而得到的标题腈。取代基(氯,溴,青梅,NME的效果2中,Me,CF 3,和NO 2)两者间位和对位已经研究了对硝基苯的吡咯烷酮是确定为吡唑并苯并三唑或吡唑并喹喔啉的优选环化方式的决定因素。同样,已经研究了溶剂,敏化剂和淬灭剂的作用。已经定义了异构体1-和2-(2-硝基苯基)-4,5,6,7-四氢吲唑的途径,并通过研究这些产物的腈介导的环化作用对文献进行了修正。还研究了类似的1-(2-carbenophenyl)-和1-(2-nitrenosulphonylphenyl)-3,5-二甲基吡唑的化学反应,前者给出了2-(3,5-二甲基吡唑-1-基)-苯并恶嗪和-苄醇,后者则产生分子内的氮攻击(吡唑并苯并噻嗪三嗪)和分子间反应的产物。所有反应途径的合理化已经提出。
    DOI:
    10.1039/p19800000982
点击查看最新优质反应信息

文献信息

  • DIMETHYLBENZOPYRAZOLOTRIAZOLE vs METHYLPYRAZOLOQUINOXALINE FROM 3,5-DIMETHYL-1-(2-NITRENOPHENYL)PYRAZOLE
    作者:Angelo Albini、Gian Franco Bettinetti、Giovanna Minoli
    DOI:10.1246/cl.1981.331
    日期:1981.3.5
    The chemistry of singlet and triplet 3,5-dimethyl-1-(2-nitrenophenyl)pyrazole is examined. Intramolecular electron transfer is found to play a key role in determining the easy reaction to the ylide (VII) from the singlet state and the “lazyness” of the triplet state.
    研究了 3,5-二甲基-1-(2-硝基苯基)吡唑的单重态和三重态的化学性质。研究发现,分子内电子传递在决定单重态容易反应生成(VII)矢尔和三重态 "懒惰 "方面起着关键作用。
  • Reactivity of Singlet and Triplet Arylnitrenes:  Temperature-Dependent Photodecomposition of 1-(2-Azidophenyl)-3,5-dimethylpyrazole
    作者:Angelo Albini、Gianfranco Bettinetti、Giovanna Minoli
    DOI:10.1021/ja970588i
    日期:1997.8.1
    gives 1,3-dimethylpyrazolobenzotriazole (6, by electrophilic cyclization of singlet nitrene 14) or, in the presence of diethylamine, aminoazepine 8 (by addition of the nucleophile and rearrangement). At lower temperatures, the yield of these products decreases and the azo derivative 9 (from the dimerization of triplet nitrene 34) as well as products from intramolecular radical cyclization (again via
    在 >200 K 时,1-(2-叠氮苯基)-3,5-二甲基吡唑 (5) 的光解得到 1,3-二甲基吡唑并苯并三唑 (6,通过单线态氮烯 14 的亲电环化) 或在二乙胺存在下,氨基氮杂 8 (通过添加亲核试剂和重排)。在较低温度下,这些产物的产率降低,并且获得偶氮衍生物 9(来自三线态氮烯 34 的二聚)以及分子内自由基环化(再次通过 34)的产物,成为 <100 K 时唯一的产物。通过分析产物分布的温度依赖性(ΔΔH⧧ = -10 kJ mol-1 和ΔΔS⧧ = 34 J mol-1 K-1 在乙醇中)确定了 14 和 34 反应的微分热力学参数。胺的添加可能需要预先扩环以得到脱氢氮杂卓12;
  • Copper-Catalyzed Annulation of 2-Formylazoles with <i>o</i>-Aminoiodoarenes
    作者:Jonathan T. Reeves、Daniel R. Fandrick、Zhulin Tan、Jinhua J. Song、Heewon Lee、Nathan K. Yee、Chris H. Senanayake
    DOI:10.1021/jo9025644
    日期:2010.2.5
    In the presence of catalytic CuI and sparteine, 2-formyl-pyrroles can be annulated with o-aminoiodoarenes to give Substituted pyrrolo[1,2-a]quinoxalines and related heterocycles. The reaction also works for annulation of 2-formylindoles, 2-formylimidazole, 2-formylbenzimidazole, and a 3-formylpyrazole.
  • Photodecomposition of Some Para-Substituted 2-Pyrazolylphenyl Azides. Substituents Affect the Phenylnitrene S−T Gap More Than the Barrier to Ring Expansion
    作者:Angelo Albini、Gianfranco Bettinetti、Giovanna Minoli
    DOI:10.1021/ja982585r
    日期:1999.4.1
    A series of para-substituted (H, Me, Cl, F, CF3, OMe, NMe2) phenyl azides bearing a dimethylpyrazolyl group in position 2 allowing intramolecular trapping of singlet nitrene have been photolyzed at both 295 and 90 K in ethanol. For three significant models (H, CF3, NMe2), the reaction has been further studied in the presence of diethylamine (DEA) and of oxygen. With all substituents but NMe2, singlet nitrene (trapped intramolecularly to give pyrazolobenzotriazoles) and didehydroazepine (trapped with DEA to give 5H-azepines and then rearranging to 3H-azepines) are in equilibrium. With the NMe2 derivative, the nonelectrophilic singlet is not trapped, while DEA adds to the benzoazirine, the precursor of the didehydroazepine. Thus, electronic effects do not hinder the equilibrium between singlet nitrene and its cyclic isomers, while determining which of the above intermediates decays to a stable end product. The electron-donating group NMe2 has a second important effect, causing a drastic enhancement of the triplet nitrene energy and reduction of the S-T gap, so that triplet nitrene is also in equilibrium with the singlet and the benzoazirine. As for triplet nitrenes,these have been characterized in matrix at 90 K, and the competition between dimerization (to give;azo compounds, as typical of such stabilized species) and hydrogen abstraction from the solvent (involving a sizable barrier) has been studied. The energetic p-dimethylamino triplet undergoes hydrogen abstraction exclusively. When present, oxygen adds efficiently to all of the nitrenes, giving a nitroso oxide, Likewise characterized in the matrix, which then converts to the nitroso and nitro,derivatives in good yields. Photochemical excitation of the triplet in matrix leads to intramolecular hydrogen abstraction.
  • Albini, Angelo; Bettinetti, Gianfranco; Minoli, Giovanna, Heterocycles, 1995, vol. 40, # 2, p. 597 - 606
    作者:Albini, Angelo、Bettinetti, Gianfranco、Minoli, Giovanna
    DOI:——
    日期:——
查看更多