Front Cover Picture: Organosilane‐Patterned Paper‐based Colorimetric Sensors for High‐Throughput Screening of Cross‐Coupling Reactions with Aryl Bromides (Adv. Synth. Catal. 20/2018).

The front cover picture, provided by Sunwoo Lee and collaborators, illustrates a paper‐based colorimetric sensor for bromides, which the authors have developed. The red color spot was converted to yellow with increasing bromide ions. This sensor was applied to detect the conversion of aryl bromides in palladium‐catalyzed coupling reactions such as Suzuki, Stille, Heck, direct arylation and decarboxylative coupling reactions. Details can be found in the full paper on pages 3916–3923 (Y. Son, S. Lee, H.‐S. Kim, M. S. Eom, M. S. Han, S. Lee, Adv. Synth. Catal. 2018, 360, 3916–3923; DOI: 10.1002/adsc.201800558). [ABSTRACT FROM AUTHOR]