1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system

Branko Stanovnik; Marko Kupper; Miha Tišler; Ivan Leban; Ljubo Golič

doi:10.1039/C39840000268

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1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system

Branko Stanovnik, Marko Kupper, Miha Tišler, Ivan Leban and Ljubo Golič

Abstract

Facile cycloadditions of 2-diazopropane (2)to the imidazo[1,2]-byridazines (Ia–c), derivatives of a 10π-electron heteroaromatic bicyclic system, give the imidazo[1,2-b]pyrazolo[4,3-d]pyridazines (4a–d)in 69–84% yields.

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DOI: https://doi.org/10.1039/C39840000268
Article type: Paper

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J. Chem. Soc., Chem. Commun., 1984, 268-269

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1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system

B. Stanovnik, M. Kupper, M. Tišler, I. Leban and L. Golič, J. Chem. Soc., Chem. Commun., 1984, 268 DOI: 10.1039/C39840000268

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Journal of the Chemical Society, Chemical Communications

1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system

Abstract

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1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system

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