Publication: Zum photochemischen Verhalten von Sydnonen und 1,3,4-Oxadiazolin-2-onen
Zum photochemischen Verhalten von Sydnonen und 1,3,4-Oxadiazolin-2-onen
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Märky, M., Meier, H., Wunderli, A., Heimgartner, H., Schmid, H., & Hansen, H.-J. (1978). Zum photochemischen Verhalten von Sydnonen und 1,3,4-Oxadiazolin-2-onen. Helvetica Chimica Acta, 61(4), 1477–1510. https://doi.org/10.1002/hlca.19780610432
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Abstract
The photochemical behaviour of several 3,4-disubstituted sydnones (cf. Scheme 5) in dioxane solution was investigated. The pure sydnones give, as was already reported [2-6], 2,4,5-trisubstituted 1,2,3-triazoles 2 (cf. Scheme 1) in 25-30% yield. In the presence of dipolarophiles (cf. Scheme 1) pyrazole derivatives 3 or 4 are formed which can be taken as a proof for the formation of nitril-imines 5 as primary products in sydnone photochemistry. Since irradiation of 2-[15N]-3,4-diphenyl- sydnone (2-[15N]-15) in dioxane leads to the forma
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- Märky, Michael
- Meier, Hansruedi
- Wunderli, Alfred
- Heimgartner, Heinz
- Schmid, Hans
- Hansen, Hans-Jürgen
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Märky, M., Meier, H., Wunderli, A., Heimgartner, H., Schmid, H., & Hansen, H.-J. (1978). Zum photochemischen Verhalten von Sydnonen und 1,3,4-Oxadiazolin-2-onen. Helvetica Chimica Acta, 61(4), 1477–1510. https://doi.org/10.1002/hlca.19780610432
