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Communication | Regular issue | Vol 36, No. 6, 1993, pp.1195-1198
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6310
One-Pot Synthesis of Heterocage Compounds

Akikazu Kakehi* and Suketaka Ito

*Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan


The reaction of some pyridinium 1-(methylthiothiocarbonyl)methylides bearing an ethoxycarbonyl group at the ylidic carbanion with dimethyl acetylenedicarboxylate in chloroform at room temperature gave smoothly 3-methylthio-4-thia-1-azatetracyclo[,11.06,8]undeca-2,9-diene-2,5,6-tricarboxylic esters in moderate yields.