Univerzita PardubiceFakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

The Synthesis of Oxazaborines, Triazaborines and Pyridazinium salts from β-Enaminones

Autoři: Josefík František | Svobodová Markéta | Bertolasi Valerio | Šimůnek Petr | Almonasy Numan | Mikysek Tomáš | Macháček Vladimír

Rok: 2012

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	The Synthesis of Oxazaborines, Triazaborines and Pyridazinium salts from β-Enaminones	The subject of investigation in this work is reactivity of β-enaminones (1) derived from acetylacetone and benzoylacetone with substituted arendiazonium tetraphenylborates and tetrafluoroborates. Reactions with arendiazonium tetraphenylborates lead to oxazaborines (2) which rearranged on heating in either suitable solvent or under solvent-free conditions to thermodynamically more stable triazaborines (3). Reactions of β-enaminones with arendiazonium tetrafluoroborates give azo-compounds (4). Some of them react with another equivalent of arendiazonium tetrafluoroborates to give pyridazinium salts (5).	Synthesis; Oxazaborines; Triazaborines; Pyridazinium salts; β-Enaminones