1993
DOI: 10.1002/cber.19931261021
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Thermisch induzierte formale [3 + 2]‐Cycloadditionen von 3,3‐Dimethoxycyclopropen an Triazine, eine neue Synthese von Pyrrolo[1,2‐d][1,2,4]triazinen

Abstract: Thermally Induced Formal [3 + 21 Cycloadditions of 3.3-Dimethoxycyclopropene to Triazines, a Novel Synthesis of Pyrrolo[l,2-d] [ 1,2,4]triazinesFormal [3 + 2 1 cycloaddition reactions of the x-delocalized singlet vinylcarbene/three-carbon 1,3-dipole 8, generated in a reversible, thermal ring opening of the cyclopropenone ketal 7, with a variety of substituted triazines lead to the novel pyrrolo[1,2-d][1,2,4]triazines 9 or 10. Compound 1Oc is protonated at N-2 by HC104/HOAc to yield the salt 17c and alkylated a… Show more

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Cited by 3 publications
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