PDF(379 KB)
Solventless synthesis of 7-hydroxy-4-methyl coumarin catalysed by H2SO4-SiO2
QIN Shengjun;XIN Xiulan;XU Baocai
PDF(379 KB)
Solventless synthesis of 7-hydroxy-4-methyl coumarin catalysed by H2SO4-SiO2
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