Supplementary Material (ESI) for Organic & Biomolecular Chemistry This journal is © The Royal Society of Chemistry 2005 S-1 Supporting information Role of Cations and Confinement in Asymmetric Photochemistry: Enantio and Diastereoselective Photocyclization of Tropolone Derivatives within Zeolites Abraham Joy, Lakshmi S. Kaanumalle and V. Ramamurthy* Department of Chemistry, University of Miami, Coral Gables, FL 33124 Contents: 1. Synthesis of tropolone alkyl ethers S-2 2. Characterization of tropolone ether derivatives S-6 3. Characterisation of photoproducts S-9 4. Coordinates for geometry optimized structures S-12