Reference of Ethyl 3-bromo-2-oxopropanoate. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Ethyl 3-bromo-2-oxopropanoate, is researched, Molecular C5H7BrO3, CAS is 70-23-5, about Four-component green synthesis of benzochromene derivatives using nano-KF/clinoptilolite as basic catalyst: study of antioxidant activity. Author is Ezzatzadeh, Elham; Hossaini, Zinatossadat.
An efficient procedure for the synthesis of benzochromene derivatives I (R = Me, Et, Ph, 4-MeC6H4, 4-MeOC6H4; R1 = COOEt, 4-MeC6H4, 4-MeOC6H4; R2 = Me, Et) employing 1-(6-hydroxy-2-isopropenyl-1-benzofuran-yl)-1-ethanone (euparin), aldehydes, alkyl bromides, dialkyl acetylenedicarboxylate and triphenylphosphine in the presence of KF/CP NPs as a heterogeneous base nano-catalyst in water at 80° is investigated. Also, the antioxidant activity of some synthesized compounds was studied. The workup of mixture of reaction is simple, and the products can be separated easily by filtration. KF/CP NPs showed a good improvement in the yield of the product and displayed significant reusable activity.
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Reference:
Oxazolidine – Wikipedia,
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