Abstract
Heterocyclic chalcogenones were prepd. by reaction of S, Se, or Te with ionic liqs. or salts [I; Ra = (substituted) alkyl, cycloalkyl, aryl, aralkyl, alkylaryl; Q = (unsatd.) (substituted) linker to form a ring of 5-10 members; X- = anion selected from conjugate bases of HX having a pKa value of >2.5]. Thus, 1-butyl-3-methylimidazolium acetate was heated with stoichiometric S at 75° for 48 h to give 1-butyl-3-methylimidazole-2-thione. [on SciFinder(R)]
Original language | English |
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Patent number | WO2010116166A2 |
Publication status | Published - 14 Oct 2010 |
Bibliographical note
CAPLUS AN 2010:1283933(Patent)Keywords
- heterocyclyl chalcogenone prepn
- sulfur selenium tellurium reaction heterocyclic cationic species
- imidazolylthione prepn