《A PANI-Fe3O4@ZnO nanocomposite: a magnetically separable and applicable catalyst for the synthesis of chromeno-pyrido[d]pyrimidine derivatives》 was published in RSC Advances in 2020. These research results belong to Chaghari-Farahani, Fatemeh; Abdolmohammadi, Shahrzad; Kia-Kojoori, Reza. Name: 3-Hydroxybenzaldehyde The article mentions the following:
Herein green, practical, PANI-Fe3O4@ZnO-nanocomposite-catalyzed cyclocondensation reactions involving 4-aminocoumarin, 1,3-dimethylbarbituric acid, and aromatic aldehydes in an aqueous medium at room temperature to synthesize 9,11-dimethyl-7-aryl-6H-chromeno[3′,4′:5,6]pyrido[2,3-d]pyrimidine-6,8,10(9H,11H)triones I (Ar = C6H5, 3-HOC6H4, 4-BrC6H4, etc.) is reported. This research aims to provide an applicable and high-yield protocol that follows the principles of green chem., with the use of water as an environmentally benign medium and the PANI-Fe3O4@ZnO nanocomposite as a magnetically recoverable catalyst. In the experimental materials used by the author, we found 3-Hydroxybenzaldehyde(cas: 100-83-4Name: 3-Hydroxybenzaldehyde)
3-Hydroxybenzaldehyde(cas: 100-83-4) can be used as a reactant along with ethyl acetoacetate and thiourea in the synthesis of corresponding dihydropyrimidine-2-thione (monastrol), using Yb(OTf)3 as a catalyst by Biginelli cyclocondensation reaction.Name: 3-Hydroxybenzaldehyde
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