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Sulfonated Carbon Catalyzed Biginelli Reaction for One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones and -thiones（图）
sulfonated carbon solid acid Biginelli reaction heterogeneous catalysis solvent-free condition
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2013/10/8
A sulfonated carbon material was shown to be a highly efficient, eco-friendly, and recyclable solid acid catalyst for the Biginelli reaction of β-ketoester, aldehyde, and urea or thiourea under solven...