1 Synthesis of γ-valerolactone using a continuous-flow reactor József M. Tukacs, a Richard V. Jones, b Ferenc Darvas, b GáborDibó, a GáborLezsák, a and László T. Mika* ,a,c a Eötvös Loránd University, Institute of Chemistry, Pázmány Péter sétány 1/A, Budapest, H-1117, Hungary b ThalesNano Nanotechnology Inc., H-1031, Budapest, Záhony u.7, Hungary c Budapest University of Technology and Economics, Department of Chemical and Environmental Process Engineering, Budafoki str. 8, Budapest, Hungary, H-1111, Tel: +361463 1263 E-mail: laszlo.t.mika@mail.bme.hu Electronic Supplementary Information (ESI) Schematic representation of a continuous-flow reactor: H-Cube ® (Ref: 1) Figure S1. H-Cube ® hydrogenation system Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2013