反応 #311491

ord-e836115ea43f4f0aac8213eac82c4454

反応条件

温度
20°CELSIUS
詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    workup.ADDITIONTo a mixture of 4.0 g
  2. 2
    ろ過The mixture is filtered
  3. 3
    その他the solid obtained
  4. 4
    その他is recrystallized from a mixture of N,N-dimethylformamide and water

実験手順

To a mixture of 4.0 g. of the product of step A in 250 ml. of chloroform is added 4.0 g. of dinitrogen tetraoxide. The mixture is stirred at about 20° C. for 20 hours. The mixture is filtered, and the solid obtained is recrystallized from a mixture of N,N-dimethylformamide and water to provide yellow crystals of 3-(4-carboxyphenyl)-2-nitronaphtho-[1,2-b]furan, m.p. greater than 300° C.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US04231965uspto-grants-1980_11