2-chloro-3-cyano-pyridine 1-oxide | 181283-98-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 2-chloro-3-cyano-pyridine 1-oxide
• 英文别名: 2-Chloro-3-cyanopyridine 1-oxide；2-chloro-1-oxidopyridin-1-ium-3-carbonitrile
• CAS: 181283-98-7
• 化学式: C₆H₃ClN₂O
• 分子量: 154.556
• InChiKey: CTNFQCVVTPMGIW-UHFFFAOYSA-N

物化性质

• 沸点：
  425.8±25.0 °C(Predicted)
• 密度：
  1.34±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  49.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-chloro-3-cyano-pyridine 1-oxide 在 水 、 羟胺 作用下， 以 乙醇 为溶剂， 反应 0.5h， 以53%的产率得到2-chloro-nicotinamidoxime 1-oxide
  参考文献：
  名称：

  Discovery of a Long-Acting, Peripherally Selective Inhibitor of Catechol-O-methyltransferase

  摘要：

  Novel nitrocatechol-substituted heterocycles were designed and evaluated for their ability to inhibit catechol-O-methyltransferase (COMT). Replacement of the pyrazole core of the initial hit 4 with a 1,2,4-oxadiazole ring resulted in a series of compounds endowed with longer duration of COMT inhibition. Incorporation of a pyridine N-oxide residue at position 3 of the 1,2,4-oxadiazole ring led to analogue 37f, which was found to possess activity comparable to entacapone and lower toxicity in comparison to tolcapone. Lead structure 37f was systematically modified in order to improve selectivity and duration of COMT inhibition as well as to minimize toxicity. Oxadiazole 37d (2,5-dichloro-3-(5-(3,4-dihydroxy-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-4,6-dimethylpyridine 1-oxide (BIA 9-1067)) was identified as a long-acting, purely peripheral inhibitor, which is currently under clinical evaluation as an adjunct to L-Dopa therapy of Parkinson's disease.

  DOI：

  10.1021/jm1001524
• 作为产物：
  描述：

  2-氯-3-氰基吡啶 在 过氧化脲素 、 三氟乙酸酐 作用下， 以 二氯甲烷 为溶剂， 反应 0.17h， 以70%的产率得到2-chloro-3-cyano-pyridine 1-oxide
  参考文献：
  名称：

  一种实用，高效，快速的方法，使用三氟乙酸酐和过氧化氢-尿素络合物氧化缺电子的吡啶

  摘要：

  开发了一种在CH 2 Cl 2或CH 3 CN中使用UHP和TFAA将贫电子吡啶氧化为N-氧化物的一般方法。该方法被证明可以耐受许多官能团和取代方式，并且在难以氧化的底物上进行。

  DOI：

  10.1016/s0040-4039(00)00165-9

文献信息

• Arylation, Alkenylation, and Alkylation of 2-Halopyridine <i>N</i>-Oxides with Grignard Reagents: A Solution to the Problem of C2/C6 Regioselective Functionalization of Pyridine Derivatives
  作者：Song Zhang、Lian-Yan Liao、Fang Zhang、Xin-Fang Duan

  DOI：10.1021/jo302511s

  日期：2013.3.15

  alkenylation, and alkylation of functionalized 2-halopyridine N-oxides with various Grignard reagents was developed. It represented a highly efficient and selective C–H bond functionalization of pyridine derivatives in the presence of reactive C–Cl or C–Br bonds. Using Cl or Br as a blocking group, C2/C6 site-controllable functionalization of pyridine derivatives has been achieved. Various pyridine compounds

  开发了各种格氏试剂的简便芳基化，烯基化和烷基化的功能化的2-卤代吡啶N-氧化物。它代表了在存在反应性C–Cl或C–Br键的情况下吡啶衍生物的高效C–H键选择性官能化。使用Cl或Br作为封闭基团，已经实现了吡啶衍生物的C2 / C6位点可控的官能化。如Onychine，dielsine和PARP-1抑制剂GPI 16539的总合成所示，可以制备各种吡啶化合物。
• A novel reagent combination for the oxidation of highly electron deficient pyridines to N-oxides: trifluoromethanesulfonic anhydride/sodium percarbonate
  作者：Xizhen Zhu、Kevin D. Kreutter、Huaping Hu、Mark R. Player、Micheal D. Gaul

  DOI：10.1016/j.tetlet.2007.11.183

  日期：2008.1

  A novel reagent combination, Tf2O/Na2CO3·1.5H2O2, has been developed for the oxidation of highly electron deficient pyridines to their corresponding N-oxides. The N-oxidation reaction, utilizing the in situ generated peracid, proceeds under mild conditions that allow for a number of functional groups and substitution patterns on the pyridine ring.

  已经开发出一种新颖的试剂组合，Tf 2 O / Na 2 CO 3 ·1.5H 2 O 2，用于将高度缺乏电子的吡啶氧化成其相应的N-氧化物。利用原位产生的过酸的N-氧化反应在温和的条件下进行，该条件允许吡啶环上具有许多官能团和取代方式。
• US7262210B2
  申请人：——

  公开号：US7262210B2

  公开（公告）日：2007-08-28