GATE-2018, Question about Hantz pyridine synthesis

Описание: In this video, I have explained a question about Hantz pyridine synthesis which appeared in the exam GATE-2018. This method involves aldol condensation and Knoevenagel reaction. Finally, the ring is produced by intramolecular ring-closing after the imine formation. Finally, any aromatization reagent like DDQ may convert the product into pyridine which is an aromatic substance.

For "Preparation of pyridine: 1,5-dicarbonyl compounds and ammonia followed by aromatization." please click on the link    • Preparation of Pyridine: 1,5-dicarbonyl co...  

For "Hantzsch Pyridine Synthesis: Preparation of pyridine from 1,3-dicarbonyl compounds and aldehyde" please click on the link    • Hantzsch Pyridine Synthesis: Preparation o...  

For "(L-450) Nucleophilic aromatic substitution on Pyridine: Resonance, Mechanism and Selectivity." please click on the link    • (L-450) Nucleophilic aromatic substitution...  

For "(L-448) Electrophilic aromatic substitution on Pyridine: Reaction mechanism and product selectivity." please click on the link    • (L-448) Electrophilic aromatic substitutio...  

For "MCQ about Pyridine and Butyl lithium: For equivalent exams like BS-MS, IIT-JAM, B.Sc, M.Sc, etc." please click on the link    • MCQ about Pyridine and Butyl lithium: For ...  

For "MCQ about the reactivity of pyridine with (D-Cl + D2O) mixture: For exams like, BS-MS, IIT-JAM, GATE" please click on the link    • MCQ about the reactivity of pyridine with ...  


For "GATE-2018, Question about Hantz pyridine synthesis" please click on the link "   • GATE-2018, Question about Hantz pyridine s...  "