Solvent-free Synthesis and Crystal Structure of 2,2'-Dialkyl Bis(3-methyl-6,7- dihydrobenzofuran-4(5

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A series of 2,2?-dialkyl bis(3-methyl-6,7-dihydrobenzofuran-4(5H)-one) derivatives was prepared through H_2SO_4·SiO_2 catalyzed condensation reaction under solvent-free conditions as potential anti-tumor agents. All of them were characterized by ESI-
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