Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 98-98-6, name is Picolinic acid. This compound has unique chemical properties. The synthetic route is as follows. COA of Formula: C6H5NO2
General procedure: A diamine compound (0.05 mol) was mixed with a dicarboxylicacid or an acid anhydride (0.025 mol) and the mixture was poured into 50 ml of preheated (100C) polyphosphoric acid. The mixture was stirred and heated at 175C for 3-5 h. The reaction mixture was then poured in ice cold water and allowed to stand overnight.The precipitate was removed by filtration and washed several times with diluted sodium hydrogen carbonate solution and finally with water. The reaction product was then air dried and weighed.The products were characterized with NMR and mass spectroscopy (Table 4) and representative examples were characterized with elemental analysis (Table 3).
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Reference:
Article; Elagab, Hamdi Ali; Alt, Helmut G.; Inorganica Chimica Acta; vol. 431; (2015); p. 266 – 275;,
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