S1 Supporting Information Batch to Flow Deoxygenation Using Visible Light Photoredox Catalysis John D. Nguyen, Barbara Reiß, Chunhui Dai and Corey R. J. Stephenson Department of Chemistry, Boston University, 590 Commonwealth Ave., Boston, Massachusetts 02215 Table of Contents I. GENERAL INFORMATION.................................................................................................................. S2 II. REACTION APPARATUS ............................................................................................................. S3-S4 III. GENERAL PROCEDURES ................................................................................................................. S5 IV. COMPARISON STUDIES…………………………………………………………………………...S6 V. COMPOUND CHARACTERIZATION ..................................................................................... S7 – S12 VI. 1 H NMR SPECTRA.................................................................................................................. S13 – S20 Electronic Supplementary Material (ESI) for Chemical Communications This journal is © The Royal Society of Chemistry 2013