Spot test detection and spectrophotometric determination of azulene compounds with 2-hydrazinobenzothiazole or 3-methyl-2-benzothiazolone hydrazone

Synthesis and properties of hydrazones f

Synthesis and properties of hydrazones from 3- and/or 5-nitro-2-pyridylhydrazine and heterocyclic aldehydes, characterization of their complexes and extraction-spectrophotometric determination of traces of nickel with 2-pyridinecarbaldehyde 3,5-dinitro-2-pyridylhydrazone

✍ Tsugikatsu Odashima; Hajime Ishii 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 846 KB

Four new hydraxones, 2-pyridinecarbaldehyde 3-nitro-2pyridylhydraxone, 2pyridinecarbaldehyde 3,5-dinitro-2pyridylhydraxone (PA-3,5-NPH), 2-quinolinecarbaldehyde 5-nitro-Zpyridylhydrazone and (i-phenanthridinecarbaldehyde %nitro-2\_pyridylhydraxone, were synthesized. Their properties and reactivities