I found the field of Chemistry very interesting. Saw the article Synthesis and domino reactions of polymethylene-3-cyanopyridine-2(1H)-thiones published in 2020.0. Safety of 3-Pyridinecarboxaldehyde, Reprint Addresses Shestopalov, AM (corresponding author), Russian Acad Sci, ND Zelinsky Inst Organ Chem, Leninsky Prospekt 47, Moscow 119991, Russia.. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde
A new and facile three-component method was developed for the synthesis of polymethylene-3-cyanopyridine-2(1H)-thiones by the domino Knoevenagel -> Michael -> heterocyclization -> dehydrogenation reaction from cycloalkanones, cyanothioacetamide, and polymethoxy-substituted benzaldehydes. The final dehydrogenation step was found to involve arylidenecyanothioacetamide. The resulting pyridinethiones and 4-chloroacetoacetic ester were introduced into the domino S(N)2 -> Thorpe-Ziegler -> Guareschi-Thorpe reaction to synthesize tetracyclic dipyridothiophenes. Starting from these compounds, 8,9-polymethylenepyranothienodipyridines were also synthesized by the domino Knoevenagel -> Michael -> hetero-Thorpe-Ziegler reaction. Furthermore, a method for the synthesis of thienodipyridine annulated to the steroid skeleton is proposed.
Safety of 3-Pyridinecarboxaldehyde. Bye, fridends, I hope you can learn more about C6H5NO, If you have any questions, you can browse other blog as well. See you lster.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem