NMR Study of the Naphtho-1,3-dithioles Formed from Carbamodithioates and 2,3-dichloro-1,4-naphthoquinone

Abstract

Reaction of triethylammonium 1,2-ethanediylbis(carbamodithioate) with 2,3-dichloro-1,4-naphthoquinone in DMF furnished N,N'-ethylenebis(2-iminonaphtho[2,3-d][1,3]dithiole-4,9-dione) in 94% yield. Triethylammonium N-arylcarbamodithioates reacted with 2,3-dichloro-1,4-naphthoquinone to give 2-(N-arylimino)naphtho[2,3-d][1,3] dithiole-4,9-diones in good yields. NMR spectroscopic data of the products are discussed.