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Preparation of new benzochromene derivatives using triethylamine, 2-hydroxyethylammonium formate, and Fe3O4@SiO2@[O-(CH2)2-NH2][HCO2H] as catalysts

Crossref DOI link: https://doi.org/10.1007/s11164-025-05698-y

Published Online: 2025-08-03

Published Print: 2025-10

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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