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6-Nitro-2-cyanochromone | 33549-82-5

中文名称
——
中文别名
——
英文名称
6-Nitro-2-cyanochromone
英文别名
6-nitro-4-oxo-4H-chromene-2-carbonitrile;6-nitro-2-cyano-4-oxo-4H-benzopyran;4H-1-Benzopyran-2-carbonitrile, 6-nitro-4-oxo-;6-nitro-4-oxochromene-2-carbonitrile
6-Nitro-2-cyanochromone化学式
CAS
33549-82-5
化学式
C10H4N2O4
mdl
——
分子量
216.153
InChiKey
YAQLDRTTWWSTKJ-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

计算性质

  • 辛醇/水分配系数(LogP):
    1.3
  • 重原子数:
    16
  • 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:
    95.9
  • 氢给体数:
    0
  • 氢受体数:
    5

反应信息

点击查看最新优质反应信息

文献信息

  • Cascade <i>in Situ</i> Iodination, Chromone Annulation, and Cyanation for Site-Selective Synthesis of 2-Cyanochromones
    作者:Yan Lin、Jie-Ping Wan、Yunyun Liu
    DOI:10.1021/acs.joc.3c00206
    日期:2023.3.17
    A facile cascade reaction for the site selective synthesis of 2-cyanochromones is described. By using simple o-hydroxyphenyl enaminones and potassium ferrocyanide trihydrate (K4[Fe(CN)6]3·3H2O) as starting materials and I2/AlCl3 as promoters, the products are furnished via tandem chromone ring formation and C–H cyanation. The in situ formation of 3-iodochromone and a formal 1,2-hydrogen atom transfer
    描述了 2-氰色酮位点选择性合成的简便级联反应。以简单的邻羟基苯基烯胺酮和亚铁氰化钾(K 4 [Fe(CN) 6 ] 3 ·3H 2 O)为起始原料,I 2 /AlCl 3为促进剂,通过串联色酮成环和C –H氰化。3-碘色酮的原位形成和正式的 1,2-氢原子转移 (HAT) 过程解释了非常规的位点选择性。此外,以相应的2-氨基苯基烯胺酮为底物,实现了2-氰基喹啉-4-酮的合成。
  • Process of producing 2-cyano-4-oxo-4H-benzopyran compounds
    申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
    公开号:EP0634409A1
    公开(公告)日:1995-01-18
    There is disclosed a process of producing a 2-cyano-4-oxo-4H-benzopyran compound of the general formula (2): wherein R¹ and R² are independently hydrogen, halogen, hydroxy, C₁-C₅ alkyl, C₁-C₅ alkoxy, nitro or a group of the RCONH wherein R is C₁-C₂₀ alkyl, phenyl, phenyl-substituted (C₁-C₂₀)alkyl, phenyl(C₁-C₂₀)alkoxyphenyl or (C₁-C₂₀)alkoxyphenyl. This production process is characterized in that a carboxamide of the general formula (1): wherein R¹ and R² are each as defined above, is reacted with a dehydrating agent in the presence of a pyridine compound of the general formula (4): wherein A¹ and A² are independently hydrogen or C₁-C₅ alkyl. If the final product cannot be obtained as crystals having good filtration properties by ordinary treatments, a novel technique as disclosed herein can provide such crystals by dissolving the reaction product in an organic solvent insoluble or slightly soluble in water; pouring the resultant solution into water; and removing the organic solvent by distillation with stirring to effect the crystallization of the final product.
    本发明公开了一种通式(2)的 2-氰基-4-氧代-4H-苯并吡喃化合物的生产工艺: 其中 R¹ 和 R² 独立地为氢、卤素、羟基、C₁-C₅ 烷基、C₁-C₅ 烷氧基、硝基或 RCONH 的基团,其中 R 为 C₁-C₂₀ 烷基、苯基、苯基取代(C₁-C₂₀)烷基、苯基(C₁-C₂₀)烷氧基苯基或(C₁-C₂₀)烷氧基苯基。该生产工艺的特征在于通式(1)的羧酰胺: 其中 R¹ 和 R² 均如上定义,在通式(4)的吡啶化合物存在下与脱水剂反应: 其中 A¹ 和 A² 独立地为氢或 C₁-C₅ 烷基。如果通过普通的处理方法无法获得具有良好过滤性能的结晶体,那么本文公开的一种新技术可以提供这种结晶体,其方法是将反应产物溶解在不溶于水或微溶于水的有机溶剂中;将所得溶液倒入水中;然后在搅拌下通过蒸馏除去有机溶剂,以实现最终产物的结晶。
  • PROCESS FOR PRODUCING TETRAZOLE COMPOUND AND INTERMEDIATE THEREFOR
    申请人:SUMITOMO CHEMICAL COMPANY LIMITED
    公开号:EP0711762A1
    公开(公告)日:1996-05-15
    There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1): characterized in that a nitrile of general formula (2):         R¹CN     (2) is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3):         ANO₂     (3) or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4):         R⁴J     (4) with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5):         R¹C(=R⁵)R⁶     (5) which is useful for the production of the tetrazole compound (in which R¹ to R⁶, A and J in the above formulas are as defined in the specification).
    本发明公开了一种生产通式(1)四唑化合物的工业化生产工艺: 其特征在于,通式(2)的腈: R¹CN (2) 在催化剂存在下与肼或其盐反应,然后与通式(3)的亚硝酸化合物反应: ANO₂ (3) 或通式(2)的腈与硫化氢反应,然后与通式(4)的烷基卤化物反应: R⁴J (4) 与肼或其盐反应,然后与通式(3)的亚硝酸化合物反应;以及通式(5)的中间体: R¹C(=R⁵)R⁶ (5) 其中上述式中的 R¹ 至 R⁶、A 和 J 如说明书中所定义)。
  • MOUYSSET, G.;PAYARD, M.;COUQUELET, J.;BASTIDE, P.;STENGER, A.;DELHON, A.;+, FARMACO, 45,(1990) N-8, C. 847-857
    作者:MOUYSSET, G.、PAYARD, M.、COUQUELET, J.、BASTIDE, P.、STENGER, A.、DELHON, A.、+
    DOI:——
    日期:——
  • PROCESS FOR PRODUCING TETRAZOLE COMPOUNDS
    申请人:SUMITOMO CHEMICAL COMPANY LIMITED
    公开号:EP0711762B1
    公开(公告)日:2003-08-06
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