Acetic Acid → 5,5-dioxidodibenzo[b,d]thien-3-ylamine

Participants

Reaction Steps

A 10 g portion of 3-nitrodibenzothiophene S,S-dioxide in 180 ml of dimethylformamide and 20 ml of glacial acetic acid containing 1.0 g of 5% palladium on carbon was hydrogenated for 1.75 hours, then filtered through diatomaceous earth and the filtrate evaporated. The residue was dissolved in 250 ml of acetonitrile, filtered through diatomaceous earth and concentrated to 150 ml. The solid was collected, giving 6.95 g of the desired product mp 261°-264° C.

Provenance & Evidence