Ethylene Glycol → HCID 118036781, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1H-pyrrolo[2,3-b]pyridine-6-carbaldehyde (840 mg, 5.60 mmol), ethylene glycol (3.13 ml, 56.0 mmol) and propylphosphonic anhydride (50% in EtOAc, 3.34 ml, 5.60 mmol) in EtOAc (15 ml) was stirred at 80° C. After 18 h, the reaction mixture was cooled to room temperature, diluted with sat. aq. NaHCO3 and extracted with EtOAc (3×). The combined organic layers were washed with brine, dried over Na2SO4 and evaporated. The crude material was applied to a 120 g RediSep® silica column and purified by normal phase chromatography, eluting with EtOAc. Product-containing fractions were combined and evaporated. The residue was triturated with Et2O to give the title compound as an white solid. (UPLC-MS 6) tR 0.66; ESI-MS 191.1 [M+H]+.

Provenance & Evidence