Influence of Adding Organics on the Synthesis of 3-picoline from Glycerol and Ammonia
1. School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China;
2. College of Chemistry and Chemical Engineering, State Key Laboratory of Chem/Biosensing and Chemometrics, Hunan University, Changsha 410082, China;
3. College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
Abstract The glycerol/ammonia method was a green route for the synthesis of 3-picoline, however, its yield is relatively low. On the basis of this reaction system, a series of organics (aldehyde or alcohol or ketone), containing odd carbon atoms, were added to the reaction system. The effect of the types of organics and the mass ratios of propanal to glycerol on the yield of 3-picoline were studied. The results showed that the addition of organics had a significant effect on the yield of 3-picoline. Compared with other organics, the propanal was in favor of increasing the yield of 3-picoline. The yield of 3-picoline reached 45.29 % and the total yield of pyridine bases reached up to 71.82 % while the mass ratio of propanal to glycerol was 1:4.
