Alkyl 2-Methyldithiocarbazates in Heterocyclic Synthesis: Preparation of 2-Alkylthio-1,3,4-thiadiazolium Cations and 2-Thioxo-2,3-dihydro-1,3,4-oxadiazole Derivatives
Alkyl 3-acyl-2-methyldithiocarbazates 2, available from alkyl 2-methyldithiocarbazates and acyl chlorides, undergo ring closure by the action of perchloric acid/acetic anhydride to give 2-alkylthio 3-methyl-1,3,4-thiadiazolium salts 4.Compounds 2 also und
Molina, P.,Tarraga, A.,Espinosa, A.
p. 690 - 693
(2007/10/02)
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