TY - GEN AU - Tapia, Rubén AU - Cano, M. José AU - Bouanou, Hanane AU - Alvarez, Esteban AU - Alvarez-Manzaneda Roldán, Ramón Jesús AU - Chahboun, Rachid AU - Alvarez-Manzaneda, Enrique PY - 2013 SN - 1359-7345 UR - http://hdl.handle.net/10835/16353 AB - An efficient and stereoselective spiroannulation of unsaturated enols is reported. Unsaturated b-dicarbonyl compounds undergo cyclization by reaction with catalytic I2–PPh3, affording the corresponding spiro enol ether derivatives, with complete... LA - en PB - Royal Society of Chemistry TI - I2–PPh3 mediated spiroannulation of unsaturated b-dicarbonyl compounds. The first synthesis of (±)-negundoin A DO - 10.1039/c3cc45921g ER -