Product Details of 99-61-6. I found the field of Chemistry very interesting. Saw the article Three-component synthesis of 2-acyl-2,3-dihydro-4H-thiochromeno[4,3-b]furan-4-ones and their reductive rearrangement into 4H,5H-thiochromeno[4,3-b]pyran-5-ones published in 2021.0, Reprint Addresses Osyanin, VA (corresponding author), Samara State Tech Univ, 244 Molodogvardeyskaya St, Samara 443100, Russia.. The CAS is 99-61-6. Through research, I have a further understanding and discovery of 3-Nitrobenzaldehyde.
Three-component condensation of in situ generated pyridinium acyl methylides with aromatic aldehydes and 4-hydroxythiocoumarin led to a series of 2-acyl-2,3-dihydro-4H-thiochromeno[4,3-b]furan-4-ones. The reaction proceeds diastereoselectively with the formation of trans-isomers and represents a cascade process involving the Knoevenagel condensation, carbo-Michael reaction, and intramolecular nucleophilic substitution. The subsequent redox rearrangement of 2-acyl-2,3-dihydro-4H-thiochromeno[4,3-b]furan-4-ones by the action of Zn and ZrCl4 grants access to 4H,5H-thiochromeno[4,3-b]pyran-5-ones.
About 3-Nitrobenzaldehyde, If you have any questions, you can contact Demidov, MR; Dobrokvashina, AN; Osipov, DV; Osyanin, VA; Klimochkin, YN or concate me.. Product Details of 99-61-6
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem