Advanced Synthesis & Catalysis ( IF 4.4 ) Pub Date : 2018-06-12 , DOI: 10.1002/adsc.201800558
Yujeong Son 1 , Suji Lee 2 , Han-Sung Kim 1 , Min Sik Eom 2 , Min Su Han 2 , Sunwoo Lee 1
Affiliation
- Department of Chemistry; Chonnam National University; Gwangju 61186 Republic of Korea
- Department of Chemistry; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 Republic of Korea
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Organosilane‐Patterned Paper‐based Colorimetric Sensors for High‐Throughput Screening of Cross‐Coupling Reactions with Aryl Bromides
An organosilane‐patterned paper‐based colorimetric sensor for bromides was developed using the 4‐(2‐pyridylazo)resorcinol (PAR)‐Hg2+ complex and patterned hydrophobic paper. The red color of the (PAR)‐Hg2+ spot was converted to yellow by ligand exchange between PAR and added bromide ions. This paper‐based sensor was applied to detect the extent of conversion of aryl bromides in palladium‐catalyzed coupling reactions such as Stille, Suzuki, Heck, direct arylation and decarboxylative coupling. A good correlation was demonstrated between the conversion of paper‐based sensor and conversion of gas chromatography.
更新日期:2018-06-12