One-pot electrosynthesis of 2,3-bis(spiro-2-indanyl-1,3-dione)-indeno[1,2-b]furan-4-one

• DOI: 10.1016/j.tetlet.2007.07.065
• Publication Date: 2007-07-17T07:18:31Z
• Authors: Roberto Horcajada; Belen Batanero; Fructuoso Barba; Avelino Martín
• Keywords: 01 natural sciences; 0104 chemical sciences

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.