I found the field of Chemistry very interesting. Saw the article Sequential four-component protocol for the synthesis of pyrido[1,2-a]pyrimidin-6-one derivatives in water published in 2021.0. Safety of 3-Nitrobenzaldehyde, Reprint Addresses Rezvanian, A (corresponding author), Alzahra Univ, Dept Chem & Phys, POB 1993891176, Tehran, Iran.. The CAS is 99-61-6. Through research, I have a further understanding and discovery of 3-Nitrobenzaldehyde
A highly efficient and environmentally benign synthesis of N-fused heterocyclic compounds including pyrido[1,2-a]pyrimidine-6-one moiety is successfully achieved via a sequential four-component reaction. The process involves the formation of diversely substituted 9-nitro-1,2,3,4,7,8-hexahydro-6H-pyrido[1,2-a]pyrimidin-6-ones from the reaction of Meldrum’s acid, benzaldehydes, 1,1-bis(methylthio)-2-nitroethylene and various diamines in the presence of p-toluene sulfonic acid (PTSA) as an acidic catalyst in water as a green solvent. The salient features of the present methodology are easily available starting materials, the use of water as environmentally benign solvent, simple execution, applicable to a wide range of starting materials and good to excellent yields.
About 3-Nitrobenzaldehyde, If you have any questions, you can contact Rezvanian, A; Amoozadkhalili, F; Roosta, A or concate me.. Safety of 3-Nitrobenzaldehyde
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem