Acetic Acid → beta-Ethylaminoethylpyrazine

Participants

Reaction Conditions

Reaction Steps

A mixture of 21.2 g (0.2 mole) of vinylpyrazine, 18.0 g (0.4 mole) of ethylamine, 6.0 g (0.1 mole) of acetic acid and 60 ml methanol was placed in a pressure bottle and heated at 70° C. for 24 hours. After removing the methanol, the residue was made basic with 8.0 g (0.2 mole) of sodium hydroxide in 80 ml of water and extracted with several portions of chloroform. After removing the chloroform, the residue was distilled to give 24.5 g of β-ethylaminoethylpyrazine, b.p. 70°-72° C. at 0.5 mm Hg, nD25 =1.5103.

Provenance & Evidence