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Abstract
AbstractThe title compounds have been prepared from 2‐bromophenyl isothiocyanates 1. Thus, 2‐lithiophenyl isothiocyanates 2, obtained from 1 and BuLi through Br/Li exchange, reacted with Se at −78° to form lithium benzoselenazole‐2‐thiolates 3, which, upon aqueous workup, afforded benzoselenazole‐2(3H)‐thiones 4. The thiolates 3 were alkylated with reactive alkyl halides and acylated with carboxylic acid chlorides to give 2‐(alkylsulfanyl)benzoselenazoles 5 and S‐(benzoselenazol‐2‐yl) thiocarboxylates 6, respectively.
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