Quinoxaline-6-carbonyl chloride → Quinoxaline-6-carboxaldehyde

Participants

Reaction Steps

In a 1 l 3-neck flask under argon was placed Quinoxaline-6-carbonyl chloride in 600 ml of DME. To this solution was added lithium tri-tert-butoxyaluminohydride (1 eq.) at −78° C. over 1.5 h. The reaction was kept at that temperature for 5 h. Then ice was added, and the reaction was diluted with AcOEt and filtrated over celite. The two layers were separated and the organic phase was washed with NaHCO3 sat. Quinoxaline-6-carbaldehyde was obtained upon evaporating the solvent in 73% yield as yellowish solid.

Provenance & Evidence