反应 #465964

ord-120f3afc236e422bb9992147bd079efa

反应方程式

COC(=O)c1ncc(OC)c([N+](=O)[O-])c1Cl
methyl 3-chloro-5-methoxy-4-nitro-pyridine-2-carboxylate
ClP(Cl)Cl
PCl3
COC(=O)c1nc(Cl)c(OC)c([N+](=O)[O-])c1Cl
white solid
COC(=O)c1nc(Cl)c(OC)c([N+](=O)[O-])c1Cl
Methyl 3,6-Dichloro-5-methoxy-4-nitropyridine-2-carboxylate

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    温度The reaction mixture was heated
  2. 2
    温度to reflux for 8 hr
  3. 3
    浓缩concentrated to dryness in vacuo

实验过程

To methyl 3-chloro-5-methoxy-4-nitro-pyridine-2-carboxylate, N-oxide (0.300 g, 1.12 mmol) in 5 mL of chloroform was added PCl3 (0.664 mL, 7.62 mmol). The reaction mixture was heated to reflux for 8 hr and then concentrated to dryness in vacuo to give 300 mg of a white solid.

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US06297197B1uspto-grants-2001_10