TEMPO(2,2,6,6-四甲基哌啶-1-氧基)对乳酸的电氧化研究  

Studies on TEMPO (2,2,6,6-Tetramethyl-1-piperidinyloxy)Mediated Electrooxidation of Lactic Acid

作　　者：张文彬[1] 廖新艳 张静雅 ZHANG Wen-bin;LIAO Xin-yan;ZHANG Jing-ya(College of Chemistry and Bio-engineering,Yichun University,Yichun 336000,China)

机构地区：[1]宜春学院化学与生物工程学院,江西宜春336000

出　　处：《宜春学院学报》2018年第6期8-10,共3页Journal of Yichun University

基　　金：国家自然科学基金(No.21303158)

摘　　要：TEMPO(2,2,6,6-四甲基哌啶-1-氧基)被证明可以用于乳酸的电催化氧化反应,电氧化峰值电流密度随水溶液pH升高而增大,同一条件下,4-乙酰氨基-TEMPO对L-乳酸的电催化能力强于TEMPO,这可以归结于乙酰氨基官能团的吸电子能力。同时,由于可能的位阻效应,TEMPO对L-乳酸的电催化能力大于其对D-乳酸的电氧化能力。It is proved that TEMPO can be used for electrocatalytic oxidation of lactic acid,electrooxidation current densities increase with the rising of pH,under the same condition,4-acetamino-TEMPO shows higher electrocatalytic ability toward L-lactic acid than TEMPO,this may caused by the electron-withdrawing ability of the acetamino group. Meanwhile,due to possible steric effect,L-lactic acid can be electrooxidized easier by TEMPO compared with DL-lactic acid.

关 键 词：乳酸 电催化 氮氧自由基 手性 pH 

分 类 号：TQ243[化学工程—有机化工]