Réaction #7580

ord-6d27b32ced974eb7a6b88307c6cfb13f

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Températurewas heated
  2. 2
    Températureat reflux for 2 hours
  3. 3
    TempératureAfter cooling
  4. 4
    Filtrationthe solid was filtered off
  5. 5
    Lavagewashed with isopropanol, ether
  6. 6
    Autredried under vacuum

Mode opératoire

A suspension of 4-chloro-7-methoxycinnoline hydrochloride (196 mg, 0.85 mmol) and 3-hydroxy-4-methylaniline (123 mg, 1 mmol) in 2-pentanol (5 ml) was heated at reflux for 2 hours. After cooling, the solid was filtered off, washed with isopropanol, ether and dried under vacuum to give 4-(3-hydroxy-4methylanilino)-7-methoxycinnoline as the hydrochloride salt (yellow solid, 215 mg, 80%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US07087602B2uspto-grants-2006_08