SELECTIVE BUTYLAMINATION OF 5,8-DIHYDROXY-1,4-NAPHTHOQUINONE PROMOTED BY COPPER SALTS

Abstract

Abstract Selective butylamination promoted by copper salts was observed on the reaction of 5,8-dihydroxy-1,4-naphthoquinone(DHNQ) with butylamine. A novel β-butylamination of DHNQ proceeded in the presence of copper salts. A number of β-butylaminated naphthoquinone derivatives were conveniently obtained.