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KOSK-II-Katalyse og org.synt.kjemi II

Synthetic applications of nitropyridine derivatives.

Tildelt: kr 3,9 mill.

A number of substituted 3-nitropyridines are now easily available by a new nitration method, and some of these derivatives are suitable substrates for the preparation of a series of bis-heterocycles. We will investigate the chemistry of nitropyridyl deriv atives further and propose to utilise 3-nitropyridyl substrates for the formation of a series of heterocyclic compounds, many of which are present in pharmaceuticals. We want to study: - the synthesis of beta-carboline analogues and furo-/thieno-azacinnol ines, - cycloaddition reactions with benzyne and pyridyne (pyridopyrimidinone), - Pschorr ring closure and oxidative cyclisation to fused tri-cyclic heterocyclic systems, - cyanomethylation and cyclization (imidazopyridine-1-oxide), - [2+4] cycloaddition of pyridyl isocyanate and diazonium ions (azolotetrazinone), - cyclization of isocyanate and aminopyrazolo carboxylate (pyrazolopyrimidinedione), - new cross coupling reactions of nitropyridines, - chiral pyridine products formed by [2+2+2] cycloaddition reactions, - chiral hydroalkoxylation, - Non Linear Optical (NLO) properties of isocyanurates, - biological activity of potential products by bioassay screening. A collaboration with research groups at the Universities of Hamburg and Tromsø will be establ ished.

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KOSK-II-Katalyse og org.synt.kjemi II