S1 Supplementary Material (ESI) for Chemical Communications Solar Light-driven Photocatalyzed Alkylations. Chemistry on the Window Ledge Stefano Protti, Davide Ravelli, Maurizio Fagnoni*, Angelo Albini Department of Organic Chemistry, University of Pavia Via Taramelli 10, 27100 Pavia (Italy) fagnoni@unipv.it 1) Experimental details 2) Table of parameters of the synthesis of TBADT and 17 by the EATOS method 1) Experimental details General: 1 H and 13 C NMR spectra were recorded on a 300 MHz spectrometer with appropriate DEPT experiments. Chemical shifts are reported in ppm downfield from TMS. The photochemical reactions were performed by using nitrogen-purged solutions in Pyrex glass reactors, in Pavia (Italy, latitude 45°11’ N, 9°09’ E, 77 m above sea level) in July-September 2008 period. The light flux measured ranged from 20 to 45 Wm -2 (in the 295-400 nm region) and 400-520 Wm -2 (450-950 nm) as shown in Figure S1. Supplementary Material (ESI) for Chemical Communications This journal is (c) The Royal Society of Chemistry 2009