Abstract
Intramolecular cyclization of ketostabilized sulfur ylide obtained from β-alanine and 2,3-pyridinedicarboxylic anhydride was studied. The structure of the reaction product, 5-methylthio-7,8-dihydro-4,8a-diazafluorene-6,9-dione, was established by X-ray diffraction analysis.
References
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For Part 7, see Ref. 1.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2376–2378, November, 1998.
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Galin, F.Z., Lakeev, S.N., Chertanova, L.F. et al. Sulfur ylides 8.* synthesis of 5-methylthio-7,8-dihydro-4,8a-diazfluorene-6,9-dione. Russ Chem Bull 47, 2304–2306 (1998). https://doi.org/10.1007/BF02494303
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DOI: https://doi.org/10.1007/BF02494303