Sulfamic acid supported on mesoporous MCM-41 as a novel, efficient and reusable heterogenous solid acid catalyst for synthesis of xanthene, dihydropyrimidinone and coumarin derivatives
作者： Reda S Salama , Salah M El-Bahy , Mohammed A Mannaa
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摘要: … Condensation reaction between ethyl acetoacetate (EAA) and resorcinol was performed using 50 mg of SA/MCM-41 catalyst for preparation coumarin. A background reaction was …
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