Karimirad, F; Behbahani, FK in [Karimirad, Fatemeh; Behbahani, Farahnaz Kargar] Islamic Azad Univ, Dept Chem, Karaj Branch, Karaj, Iran published gamma-Fe2O3@Si-(CH2)(3)@mel@(CH2)(4)SO3H as a magnetically bifunctional and retrievable nanocatalyst for green synthesis of benzo[c]acridine-8(9H)-ones and 2-amino-4H-chromenes in 2021, Cited 41. Safety of 3-Hydroxybenzaldehyde. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4.
The present work describes the synthesis and characterization of melamine functionalized with sulfonic acid supported on the magnetic nanoparticle, gamma-Fe2O3@Si-(CH2)(3)@melamine@butyl sulfonic acid nanoparticle as a green and retrievable bifunctional catalyst. This catalyst was assigned by FT-IR, XRD, EDX, TEM, VSM, CHN, and TGA analyses. In addition, the catalytic activity of this new catalyst was investigated for the synthesis of 7,10,11,12-tetrahydrobenzo[c]acridine-8(9H)-ones from aliphatic and aromatic aldehydes, dimedone and 1-naphthylamine in excellent yields and 2-amino-4H-chromenes were provided using manufactured nanocatalyst in good-to-high yield under mild reaction condition. The gamma-Fe2O3@Si-(CH2)(3)@melamine@butyl sulfonic acid heterogeneous catalyst showed the advantages such as very simple and eco-friendly due to use from magnetic nanoparticles as high reusability of the catalyst, magnetically separable catalyst, excellent yield, and mild reaction condition. The synthesis of some new derivatives of dibenzo[c]acridines and 2-amino-4H-chromenes in the presence of this nanocatalyst is also reported.
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