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pro vyhledávání: '"Anke Scheunemann"'
Autor:
Manfred Michalik, Helmut Reinke, Heinz Dehne, Kerstin Drexler, Anke Scheunemann, Klaus Martens
Publikováno v:
Molecules, Vol 6, Iss 6, Pp 540-550 (2001)
The new S-alkyl thiooxal-1-hydrazono-2-amidrazonium halides 2-4 were synthesized by reaction of the corresponding zwitterionic thiooxalic acid derivatives 1 with alkyl halides in methanol. The structures of compounds 4b and 4d were proven by X-ray st
Externí odkaz:
https://doaj.org/article/e90f7d549b6348be97de61205c67325f
Autor:
Kerstin Drexler, Klaus Martens, Helmut Reinke, Manfred Michalik, Anke Scheunemann, Heinz Dehne
Publikováno v:
Molecules
Volume 6
Issue 6
Pages 540-550
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
Molecules, Vol 6, Iss 6, Pp 540-550 (2001)
Volume 6
Issue 6
Pages 540-550
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
Molecules, Vol 6, Iss 6, Pp 540-550 (2001)
The new S-alkyl thiooxal-1-hydrazono-2-amidrazonium halides 2-4 were synthesized by reaction of the corresponding zwitterionic thiooxalic acid derivatives 1 with alkyl halides in methanol. The structures of compounds 4b and 4d were proven by X-ray st
Autor:
Frank W. Heinemann, Heinz Dehne, Manfred Michalik, Helmut Hartung, Kibbel Hans U, Anke Scheunemann
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 86:177-179
The reaction of sodium cyanodithioformate (NaSC(S)CN · 3DMF) with hydrazine hydrate gives thiooxalic acid 2-amide-1-hydrazide-2-hydrazone in good yields. Spectroscopic data, X-ray analysis, and the chemical behaviour prove the zwitterionic structure