Ring Transformations of Pyrazolinones via Azoolefins - a New Way to the 1,2,3-Thiadiazol-System

DOI: 10.1002/prac.19933350209

Source and publish data:

Journal fur Praktische Chemie - Chemiker-Zeitung p. 169 - 175 (1993)

Update date:2022-07-30

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Authors:

Lutze, Gerhard

Kirschke, Klaus

Huebner, Petra

Schmitz, Ernst

Ramm, Matthias

Krauss, Norbert

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Article abstract of DOI:10.1002/prac.19933350209

Electrophilic attack of thiocyanate/bromine to azoenamine (2a) yields thiocyanato compound 3a which cyclizes into 1,2,3-thiadiazolium-salt (5a) on treatment with perchloric acid. 2-Halo-3-arylazo-propenamides (8) from directly thiadiazolium-salt (11) with

Full text of DOI:10.1002/prac.19933350209

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