Collect. Czech. Chem. Commun. 1993, 58, 954-958

Spiroheterocyclic Systems: Part I: Synthesis of Some New Spiroheterocycles Related to 1-Oxa-4-thiaspiro[4,4]nonan-2-one and/or [4,5]Decan-2-one

Maher F. El-Zohry, Ibrahim M. A. Awad and Ali A. Abdel-Hafez

Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516, Egypt


As continuation to our previous work, we report herein the synthesis of some new spirothiazolopyrazoles, spirothiazoloisoxazoles, spirothiazolopyrimidinones and spirothiazolothiopyrimidinones.