cinnoline-6-carbonitrile | 318276-75-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: cinnoline-6-carbonitrile
• 英文别名: 6-cyanocinnoline；6-Cinnolinecarbonitrile
• CAS: 318276-75-4
• 化学式: C₉H₅N₃
• 分子量: 155.159
• InChiKey: QVZFZRFRHYQCCW-UHFFFAOYSA-N

物化性质

• 熔点：
  129-131 °C
• 沸点：
  356.6±34.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  49.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  cinnoline-6-carbonitrile 在 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex 、 zinc(II) chloride 、 溴 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二氯甲烷 为溶剂， 反应 1.0h， 以59%的产率得到8-bromocinnoline-6-carbonitrile
  参考文献：
  名称：

  TMP–Magnesium and TMP–Zinc Bases for the Regioselective Metalation of the Cinnoline Scaffold

  摘要：

  A regioselective functionalization of cinnolines in positions 3 and 8 using metalations has been developed. This involves either the use of a frustrated Lewis pair consisting of BF3 center dot Et2O and TMP2Mg center dot 2LiCl or the in situ generated base TMP2Zn center dot 2MgCl(2)center dot 2LiCl. Successive metalations allow the preparation of 3,8-disubstituted cinnolines. Various functionalizations by acylation, allylation, and cross-coupling reactions with aryl halides or alkenyl iodides were carried out successfully.

  DOI：

  10.1021/ol5001999
• 作为产物：
  描述：

  4-氨基-3-碘苯腈 在 盐酸 、 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 potassium carbonate 、 三乙胺 、 sodium nitrite 作用下， 以 四氢呋喃 、 甲醇 、 水 、 邻二氯苯 、 乙腈 为溶剂， 反应 10.5h， 生成 cinnoline-6-carbonitrile
  参考文献：
  名称：

  Cyclization of 1-(2-Alkynylphenyl)-3,3-dialkyltriazenes:  A Convenient, High-Yield Synthesis of Substituted Cinnolines and Isoindazoles

  摘要：

  A new route to isoindazoles and cinnolines through the cyclization of (2-alkynylphenyl)triazenes under neutral conditions is presented. The products that result from heating the starting triazenes depend on both the type of alkyne ortho to the triazene functionality and the temperature used. Butadiyne moieties ortho to dialkyltriazenes yield bis-isoindazole dimers when heated to 150 degreesC in MeI. A requirement for cyclization in MeI is that the (2-alkynylphenyl)triazene must contain a suitably electron-withdrawing substituent on the phenyl ring to deactivate the triazene toward methylation-induced decomposition to an iodoarene. Ethynyl moieties ortho to dialkyltriazenes yield both isoindazole dimers as well as 3-formylisoindazoles when subjected to the same conditions. Replacing MeI with 1,2-dichlorobenzene as solvent allows for the general cyclization of (2-ethynylphenyl)dialkyltriazenes. Heating to 170 degreesC results in a mixture of isoindazole and cinnoline products, whereas the cinnolines are produced exclusively in high yield at 200 degreesC. Alternatively, the isoindazoles can be obtained in good to excellent yield by stirring a 1,2-dichloroethane solution of the starting triazene with CuCl overnight at 50 degreesC.

  DOI：

  10.1021/jo020229s

文献信息

• Thermal Cyclization of (2-Ethynylphenyl)triazenes:  Facile Synthesis of Substituted Cinnolines and Isoindazoles
  作者：David B. Kimball、Austin G. Hayes、Michael M. Haley

  DOI：10.1021/ol006517x

  日期：2000.11.1

  [GRAPHICS]High-temperature intramolecular cyclization of N,N-dialkyl-N'-(4-substituted-2-ethynylphenyl)triazines provides under neutral conditions both 6-substituted cinnolines and 5-substituted isoindazoles in moderate to excellent yields.