Reaktion #81831

ord-24e3e04e78f44c6895cfb7d951f704f4

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe crystalline product was removed by filtration
  2. 2
    Sonstigedried

Vorschrift

A solution of 2-chloro-3-cyano-6-(imidazol-1-yl)-4-methylpyridine (2.1 g) in concentrated sulfuric acid (5 mL) was heated at 130° C. for 15 minutes. The mixture was cooled to room temperature, diluted with water (10 mL), and adjusted to pH 7 with 20% sodium hydroxide solution followed by solid sodium bicarbonate. The crystalline product was removed by filtration and dried to give 2.35 g of the title compound, suitable for use in the next reaction.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05620974uspto-grants-1997_04