Synthetic Communications p. 2039 - 2046 (2004)
Update date:2022-08-11
Topics:
Hu, Yi
Chen, Zhen-Chu
Le, Zhang-Gao
Zheng, Qin-Guo
Ionic liquids based on 1-butyl-3-methylimidazolium hexafluorophosphate (BmimPF6) and 1-butyl-3-methylimidazolium tetrafluoroborate (BmimBF4) are used as reusable reaction medium in the selective S-alkylation of 2-mercaptobenzothia(xa)zole with alkyl halides in the presence of potassium carbonate. This procedure is convenient, efficient, and generally gives rise to the S-alkylated product exclusively.
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