Article ID Journal Published Year Pages File Type
5279730 Tetrahedron Letters 2007 5 Pages PDF
Abstract

The 2,3-bis(spiro-2-indanyl-1,3-dione)-indeno[1,2-b]furan-4-one has been synthesized by cathodic reduction of 2,2-dibromo-1,3-indandione in dichloromethane-Bu4NBF4. In contrast, tris-indanedione was the main product when acetonitrile was used as a solvent. Sunlight exposition of the dispiro compound afforded the tris-indandione in quantitative yield.

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Physical Sciences and Engineering Chemistry Organic Chemistry