132764-29-5Relevant articles and documents
Tetrazoles. XXXI. Phase-Transfer Reactions of 1-Substituted Tetrazole-5-thiones and Their Derivatives
Gol'tsberg,Koldobskii
, p. 1194 - 1201 (2007/10/03)
Alkylation of 1-substituted tetrazole-5-thiones under conditions of phase-transfer catalysis in the two-phase system liquid-liquid proceeds regioselectively at the sulfur atom, regardless of the alkylating agent and phase-transfer catalyst. Phase-transfer oxidation of the 5-alkylthiotetrazoles thus obtained by potassium permanganate is a convenient method for preparation of 5-alkylsulfonyltetrazoles which can be used to synthesize functionally substituted tetrazoles.
Tetrazoles. XXXII. Reactions of 1-R-Tetrazole-5-Thiones and Their Derivatives under Conditions of Phase Transfer Catalysis. Selection of Phase Transfer Catalyst
Gol'tsberg,Grabalek,Farsa,Krebs,Dolezhal,Koldobsky
, p. 1367 - 1369 (2007/10/03)
Among the six investigated catalysts of phase transfer the most effective at alkylation of 1-phenyltetrazole-5-thione and oxidation of 5-methylthio-phenyltetrazole turned out to be the benzyldimetyhyl(5-methoxycarbonylpentyl)ammonium bromide. The directio