The reaction of 2-(tetrazol-5-yl) alkyl ketones and of 2-(tetrazol-5-yl) alkanoic acid derivatives with lead tetraacetate. A novel method of preparation of alk-2-ynyl …

…, M Kajtár-Peredy, A Rockenbauer, L Korecz…

Index: Fetter; Nagy; Giang; Kajtar-Peredy; Rockenbauer; Korecz; Czira Journal of the Chemical Society. Perkin Transactions 1, 2001 , # 9 p. 1131 - 1139

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Abstract

The majority of tetrazolylacetyl derivatives 2 and 7, when treated with lead tetraacetate in dry 1, 4-dioxane at room or lower temperature, are oxidized with elimination of molecular nitrogen mainly to the corresponding alkynoyl derivatives 4 and 8, respectively. Vinylidenes (25) have been shown to be the intermediates of the reaction. The reaction does not take place when either the tetrazolyl group is N-substituted or the carbon atom separating the ...

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