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Synthesis of 5-(4-X-Phenyl)-10,15,20-tris(Substituted Phenyl) Porphyrins Using Dipyrromethanes
Molecules 2001, 6(6), 540-550; doi:10.3390/60600540

Alkylation of Zwitterionic Thiooxalic Acid Derivatives

1, 1, 1, 1,* , 1 and 2
1 Fachbereich Chemie der Universität Rostock, Buchbinderstr. 9, D-18055 Rostock, Germany 2 Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstr. 5-6, D-18055 Rostock, Germany
* Author to whom correspondence should be addressed.
Received: 12 March 2001 / Accepted: 10 May 2001 / Published: 31 May 2001
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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 structural analysis. Both compounds form an interesting intermolecular network of hydrogen bonds in the solid state.
Keywords: Alkylation; thiooxalic acid derivatives; halides; X-ray analysis Alkylation; thiooxalic acid derivatives; halides; X-ray analysis
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Martens, K.; Scheunemann, A.; Drexler, K.; Dehne, H.; Reinke, H.; Michalik, M. Alkylation of Zwitterionic Thiooxalic Acid Derivatives. Molecules 2001, 6, 540-550.

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