HCID 54275719, compound → HCID 136409739, compound

Participants

Reaction Steps

To a solution of 0.85 g (0.0018 mole) crude 1-amino-8-hexadecanesulfonamido-2-naphthol in 16 ml pyridine at 0° C was added 0.81 g (0.0018 mole) 4-acetamido-5-hydroxy-6-(o-methoxyphenylazo)naphthalene-1-sulfonyl chloride. The mixture was stirred overnight at room temperature, then poured in ice water containing 18 ml concentrated hydrochloric acid. The product was dried and triturated first with hot 1:1 dioxaneisopropyl alcohol and then with hot methanol to give 0.85 g of product, m.p. 177°-180° C.

Provenance & Evidence