I found the field of Chemistry very interesting. Saw the article Piperazinium Nano Silica Sulfonate: An Efficient Catalyst for the Hantzsch Reaction published in 2021.0. SDS of cas: 99-61-6, Reprint Addresses Shirini, F (corresponding author), Univ Guilan, Dept Chem, Coll Sci, Rasht 4133519141, Iran.. The CAS is 99-61-6. Through research, I have a further understanding and discovery of 3-Nitrobenzaldehyde
Piperazinium nano silica sulfonate (PNSS) is simply prepared by the reaction of piperazine with nano sized silica sulfuric acid. After preparation it was completely characterized using different techniques including FT-IR, XRD, TGA, FESEM, EDS and TEM analysis. In continue PNSS was efficiently used for the promotion of the synthesis of polyhydroquinolines and 1,8-dioxo-decahydroacridines through unsymmetrical and symmetrical Hantzsch condensation reaction. High yields, short reaction times, ease of preparation and reusability of the catalyst, easy work-up procedure and solvent-free conditions are among the most important advantages of this method.
Welcome to talk about 99-61-6, If you have any questions, you can contact Mousapour, M; Shirini, F or send Email.. SDS of cas: 99-61-6
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem