α-巯基吡嗪合成方法的改进与~1HNMR  

Improved Syntheses of α-Mercaptopyrazine and its ~1HNMR

作　　者：赵艳茹[1] 丁涛 

机构地区：[1]许昌学院化学化工学院,河南许昌461000 [2]滕州悟通香料公司,山东滕州277521

出　　处：《安徽师范大学学报（自然科学版）》2008年第3期252-256,264,共6页Journal of Anhui Normal University(Natural Science)

基　　金：河南省科技攻关项目(0624290013)

摘　　要：α-巯基吡嗪是一种具有烘烤香气(味)的食用香料.本文对合成方法做了改进,在保护措施下合成了该化合物,测定了所得产物的熔点(分解点),并经1HNMR表征.1HNMR显示了吡嗪环上芳H与-SH中H的吸收,且δ值在经典文献所载范围内.这与过去的有关α-巯基吡嗪的合成文献有较大差异.The high active Ti/nanoTiO2- Pt electrode was prepared by electrochemical synthesis and electro- deposition. The electrochemical effect of impurity halide ion in Ti/nanoTiO2 -Pt Electrode and ion liquid （[EMI]BF4）is studied by cyclic voltammetry and linear scanning method, and was also compared with Ti/ nanoTiO2 and graphite electrode. The relationship of electro catalysis activity and response of halide ion on Ti/ nanoTiO2 - Pt Electrode was also studied. The results show that the electro catalysis activity of halide ion on Ti/ nanoTiO2- Pt Electrode is high. According to the experiments, the ion liquid may have the electrochemical effect of impurity halide ion in high active electrode. Epa = 0.94V,△Ep = 0. 098V, Ipa/Ipe = 1, it is quasi- reversible electrode reaction.

关 键 词：食用香料 α-巯基吡嗪 α-氯代吡嗪 甲醇钠 

分 类 号：O626.415[理学—有机化学]