A Convenient Synthesis of 2-Sulfanylbenzoselenazole Derivatives via the Reaction of 2-Lithiophenyl Isothiocyanates with Selenium
作者:Kazuhiro Kobayashi、Yuki Yokoi
DOI:10.1002/hlca.201200014
日期:2012.5
been prepared from2‐bromophenyl isothiocyanates 1. Thus, 2‐lithiophenyl isothiocyanates 2, obtained from1 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‐(alkylsul