Phosphorus oxychloride → Methyl 4-(6-chloropyridin-3-yl)benzoate

HRID 1785814Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1785814
O[C:2]1[N:7]=[CH:6][C:5]([C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.O=P(Cl)(Cl)[Cl:20]>>[Cl:20][C:2]1[N:7]=[CH:6][C:5]([C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1

Komponenten

3

Versuchsvorschrift

A solution of Example 252E (1.2 g, 5 mmol) in POCl3 (30 mL) was heated to reflux for 30 minutes. The excess POCl3 was removed under vacuum and the remaining product was purified by flash column chromatography on silica gel with 4:1 ethyl acetate/hexanes to provide the desired product. MS (ESI) m/e 248 (M+H)+.

Aufarbeitung

  1. temperatureto reflux for 30 minutes
  2. customThe excess POCl3 was removed under vacuum
  3. customthe remaining product was purified by flash column chromatography on silica gel with 4:1 ethyl acetate/hexanes

Quellen und Nachweise

ORD-Eintrag
ord-ce4250fbd35d41899f315675d0e98526
Quelldatensatz
uspto-grants-2009_03
Patentnummer
US07504512B2

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