A series of 2,2'-dialkyl bis(3-methyl-6,7-dihydrobenzofuran-4(5H)-one) derivatives was prepared through H2SO4·SiO2 catalyzed condensation reaction under solvent-free conditions as potential anti-tumor agents...A series of 2,2'-dialkyl bis(3-methyl-6,7-dihydrobenzofuran-4(5H)-one) derivatives was prepared through H2SO4·SiO2 catalyzed condensation reaction under solvent-free conditions as potential anti-tumor agents. All of them were characterized by ESI-MS, IR and NMR spectra. Meanwhile, the single crystal of the target compound (4b), C24H28O4, was also obtained and determined by X-ray crystallography. Crystal data: triclinic system, space group P , a = 8.463(10), b = 9.612(11), c = 13.828(15) , α = 74.29(5), β = 80.93(5), γ = 69.90(3)°, V = 1014(2) 3, Z = 2, F(000) = 408, Dc = 1.246 g/cm3, μ = 0.084 mm?1, R = 0.0883 and wR = 0.2440 for 4616 independent reflections (Rint = 0.1200) and 3490 observed ones (I 〉 2σ(I)).展开更多
基金supported by the National Natural Science Foundation of China(No.21602123)China Scholarship Council(No.201508420062)Youth Talent Development Foundation of China Three Gorges University
文摘A series of 2,2'-dialkyl bis(3-methyl-6,7-dihydrobenzofuran-4(5H)-one) derivatives was prepared through H2SO4·SiO2 catalyzed condensation reaction under solvent-free conditions as potential anti-tumor agents. All of them were characterized by ESI-MS, IR and NMR spectra. Meanwhile, the single crystal of the target compound (4b), C24H28O4, was also obtained and determined by X-ray crystallography. Crystal data: triclinic system, space group P , a = 8.463(10), b = 9.612(11), c = 13.828(15) , α = 74.29(5), β = 80.93(5), γ = 69.90(3)°, V = 1014(2) 3, Z = 2, F(000) = 408, Dc = 1.246 g/cm3, μ = 0.084 mm?1, R = 0.0883 and wR = 0.2440 for 4616 independent reflections (Rint = 0.1200) and 3490 observed ones (I 〉 2σ(I)).