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Paper | Regular issue | Vol 71, No. 12, 2007, pp.2709-2716
Published online, 28th August, 2007
DOI: 10.3987/COM-07-11181
7,11-Diaryl-2,4-diazaspiro[5.5]undecane-1,5,9-triones: A New Series of Spiroheterocycles

Jitender M. Khurana,* Reema Arora, and Sarishti Satija

*Department of Chemistry, University of Delhi, Delhi-110007, India


A novel two step synthesis of 7,11-diaryl-2,4-diazaspiro[5.5]undecane-1,5,9-triones has been reported based on double Michael addition of 2-thiobarbiturates or N,N’-diaryl-2-thiobarbiturates with dibenzalacetones followed by reductive desulfurization with nickel boride.