Hydrazide und Azide organischer Säuren. XIV. Abhandlung. Hydrazide und Azide aromatischer sulfosäuren

Isonicotinic Acid Hydrazide

A Concomitant Allylic Azide Rearrangement/Intramolecular Azide–Alkyne Cycloaddition Sequence

An intramolecular Huisgen cycloaddition of an interconverting set of isomeric allylic azides with alkynes affords substituted triazoles in high yield. The stereoisomeric vinyl-substituted triazoloxazines formed depend on the rate of cycloaddition of the different allylic azide precursors when the reaction is carried out under thermal conditions. In contrast, dimerized macrocyclic products were ...

Properties of Azide - Catalase

Annau, E., Banga, I., Blazso, A., Brukner, V., Laki, K., Straub, F. B. & Szent-Gyorgyi, A. (1936). Hoppe-Seyl. Z. 244, 105. Annau, E., Banga, I., Gozsy, B., Huszak, S., Laki, K., Straub, F. B. & Szent-Gyorgyi, A. (1935). Hoppe-Seyl. Z. 236, 1. Annau, E. & Erd6s, T. (1939). IHoppe-Seyl. Z. 257, 111. Banga, I., Ochoa, S. & Peters, R. A. (1939). Biochem. J. 33, 1980. Das, N. B. (1937a). Biochem. J...

Synthesis and anti-tumor evaluation of novel hydrazide and hydrazide-hydrazone derivatives.

The reaction of cyclopentanone with cyanoacetylhydrazine gave 2-cyano-2-cyclopentylideneacetohydrazide (1). Treatment of compound 1 with elemental sulphur in the presence of triethylamine afforded 2-amino-5,6-dihydro- -4H-cyclopenta[b]thiophene-3-carbohydrazide (2), which in-turn formed the corresponding intermediate diazonium salt. The latter was coupled with either ethyl cyanoacetate or ethyl...

Liquid azide salts.

Ionic liquid azides from azidoethyl, alkyl, and alkenyl substituted derivatives of 1,2,4- and 1,2,3-amino-triazoles were prepared and examined for the first time to investigate their structural and physical properties. All reported salts possess melting points below 100 degrees C. The unique character of these newly discovered ionic liquid azides is based upon the fact that these molecules are ...