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- W2521887957 abstract "Abstract The use of chromium(III) nitrate nonahydrate (Cr(NO 3 ) 3 ·9H 2 O) as an efficient, mild and economical catalyst for the one-pot three-component Biginelli synthesis of 3,4-dihydropyrimidin-2-(1H)-one/thione derivatives in the reaction between β-keto esters (methyl or ethyl acetoacetate), aromatic aldehydes (benzaldehye derivatives) and urea or thiourea under thermal and solvent-free conditions with good yields and short reaction times is reported. The most benefits of this synthetic method include the use of an efficient, eco-friendly, inexpensive and non-toxic catalyst, as well as the solvent-free conditions. All products were characterized by 1 H NMR spectroscopy and melting point determination." @default.
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- W2521887957 date "2016-07-01" @default.
- W2521887957 modified "2023-10-16" @default.
- W2521887957 title "Chromium (III) Nitrate Nonahydrate: An Environmentally Benign and Efficient Heterogeneous Catalyst for Facile One-Pot Biginelli Synthesis of 3,4-Dihydropyrimidin-2-(1H)-One/Thione Derivatives Under Solvent-Free Conditions" @default.
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- W2521887957 doi "https://doi.org/10.1515/achi-2016-0003" @default.
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