Reaktion #1509598

Reaktionsgleichung

NaHCO3

2-Chloro-6,N,N-trimethyl-isonicotinamide

triflic anhydride

sodium azide

→

title compound

Ausbeute 10.7%

2-Chloro-6-methyl-4-(1-methyl-1H-tetrazol-5-yl)-pyridine

Ausbeute 10.7%

Lösungsmittel

acetonitrile

DCM

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturto warm to room temperature and after 2 h
2. 2
   Extraktionextracted with EtOAc
3. 3
   SonstigeThe organic layer was separated
4. 4
   Sonstigedried
5. 5
   Einengenconcentrated in vacuum

Vorschrift

To a solution of 2-Chloro-6,N,N-trimethyl-isonicotinamide (2.3 g) in acetonitrile (30 ml) at −15° C. was added DCM (20 ml) pre-cooled triflic anhydride (3 mL) dropwise. This was stirred for 10 min at −10° C. and then sodium azide (4.6 g) was added. This was allowed to warm to room temperature and after 2 h, the reaction was neutralised with a cold 5% NaHCO3(aq) solution and extracted with EtOAc. The organic layer was separated, dried and concentrated in vacuum. Flash chromatography (100:0 to 40:60 gradient cyclohexane:EtOAc) afforded the title compound (260 mg). Rt=1.21 min (method D).

Quelle