[1] 1-Naphthalenethiol can also be prepared from 1-bromonaphthalene by Pd-catalyzed reaction with the silylthiolate iPr3SiSK followed by hydrolysis of the silathioether.

[2] It was first prepared from the Grignard reagent generated from 1-bromonaphthalene.

Treatment of that reagent with elemental sulfur followed by acidification gave the compound.

[3] It has been produced by the iodine-catalyzed reduction of 1-naphthalenesulfonic acid with triphenylphosphine.

[4] Treating 1-naphthalenethiol with butyl lithium in the presence of tmeda affords the 2-lithio derivative.