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An Efficient Combined Electrochemical and Ultrasound Assisted Synthesis of Imidazole‐2‐Thiones
Author(s) -
Feroci Marta,
Orsini Monica,
Inesi Achille
Publication year - 2009
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200900359
Subject(s) - chemistry , reagent , imidazole , ionic liquid , electrochemistry , sulfur , combinatorial chemistry , reaction conditions , organic chemistry , electrode , catalysis
The electrochemical reduction of 1,3‐dialkylimidazolium ionic liquids gave the corresponding N‐heterocyclic carbenes that, after reaction with elemental sulfur and ultrasound irradiation, yielded 1,3‐dialkylimidazole‐2‐thiones in very high yields. The reaction is very clean, produces no side‐products and avoids the use of any other added reagent.