Methanol → 2-Amino-3-n-propoxy-5-methylpyrazine

HRID 66739

Reaktionsgleichung

Reaktionsgleichung von HRID 66739
Cl[C:2]1[C:7](Cl)=NC=CN=1.[CH3:9][OH:10].[NH2:11][C:12]1[C:17](Br)=[N:16][C:15]([CH3:19])=[CH:14][N:13]=1>C(O)CC>[NH2:11][C:12]1[C:17]([O:10][CH2:9][CH2:7][CH3:2])=[N:16][C:15]([CH3:19])=[CH:14][N:13]=1

Komponenten

5

Edukt 3

HCID 887MethanolHCID 785752,3-DichloropyrazineHCID 98990432-Amino-3-bromo-5-methylpyrazine

Produkt 1

HCID 205289882-Amino-3-n-propoxy-5-methylpyrazine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 10311-PropanolLösungsmittel

Versuchsvorschrift

By replacing the 2,3-dichloropyrazine and anhydrous methanol used in Preparation 43 by equivalent quantities of the product of Step A and n-propanol and following the method described in Preparation 43, 2-amino-3-n-propoxy-5-methylpyrazine is obtained. The 2-amino group can be converted to the 2-hydroxy by the method described by Sharp et al, ibid., (see Route III) which when treated with phosphorus oxychloride by the method of Preparation 13, Step B, provides 2-chloro-3-n-propoxy-5-methylpyrazine.

Aufarbeitung

  1. customdescribed in Preparation 43

Quellen und Nachweise

ORD-Eintrag
ord-b93782a1711d49f8a1b8b8f708f73639
Quelldatensatz
uspto-grants-1982_08
Patentnummer
US04343802

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