Triethylamine → HCID 22181628, compound

Participants

Reaction Steps

See Example 75a. 2-Amino-5-nitro-pyridine (2.0 g, 14.3 mmol), 5-bromo-pentanoyl chloride (2.86 g, 14.3 mmol), triethylamine (2.39 g, 17.2 mmol), catalytic DMAP were heated at reflux in toluene (70 mL) 22 h. The reaction was allowed to cool to RT, concentrated and the resulting oil portioned between EtOAc and water. The organic layer was separated, washed with brine, dried over MgSO4 and filtered. Concentration of the filtrate produced an oil which was dissolved in THF (140 mL). Potassium tert-Butoxide (1.68 g, 15.0 mmol) was added portion-wise and the reaction stirred at RT for 2h. Water was then added, and the reaction extracted with EtOAc. The organics were then washed with brine and dried over MgSO4. Purification of the crude material by mplc revealed the product as an orange solid. MS: APCI (AP+): 222.1 (M)+.

Provenance & Evidence