Phosphoric Acid → HCID 22418013, compound

Participants

Reaction Steps

2.6 g (0.017M) of 2,3-diamino-4-n-propylpyridine and 1.4 ml (0.019M) of propionic acid were added to 15 ml of phosphoric acid, and the mixture was heated at 140° to 150° C. for 20 hr. It was cooled to room temperature, poured into a cold aqueous NaOH solution and then extracted with ethyl acetate. The extract was dried over magnesium sulfate, and the solvent was distilled off in vacuo to prepare a substantially pure brown oleaginous intended product. The yield was 2.9 g (this compound was used as a starting material in the preparation of the following raw material (29)).

Provenance & Evidence