基于有机硅烷的纸基比色传感器,用于高通量筛选与芳基溴化物的交叉偶联反应

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基于有机硅烷的纸基比色传感器,用于高通量筛选与芳基溴化物的交叉偶联反应
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  

  1. Department of Chemistry; Chonnam National University; Gwangju 61186 Republic of Korea
  2. Department of Chemistry; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 Republic of Korea

使用4-(2-吡啶基偶氮)间苯二酚(PAR)-Hg 2+络合物和带图案的疏水纸开发了一种有机硅烷图案的基于纸的溴比色传感器。(PAR)-Hg 2+点的红色通过PAR与添加的溴离子之间的配体交换而转变为黄色。这款基于纸张的传感器用于检测钯催化的偶联反应(例如Stille,Suzuki,Heck,直接芳基化和脱羧偶联)中芳基溴化物的转化程度。纸质传感器的转换与气相色谱法的转换之间显示出良好的相关性。

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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