%A Junzhen ZHANG, Bingqin YANG, Yating YANG, Binglin ZHANG %T Synthesis, characterization and crystal structure of 1-ferrocenesulfonyl-2-long carbon chain alkyl benzimidazole %0 Journal Article %D 2009 %J Front. Chem. China %J Frontiers of Chemistry in China %@ 1673-3495 %R 10.1007/s11458-009-0008-9 %P 52-57 %V 4 %N 1 %U {https://journal.hep.com.cn/fcc/EN/10.1007/s11458-009-0008-9 %8 2009-03-05 %X

Six new 1-ferrocenesulfonyl-2-benzimidazole derivatives were prepared by the reaction of ferrocenesulfonyl chloride with benzimidazole derivatives in the presence of dichloromethane and n-tetrabutylammonia bromide. The yields of these six new ferrocenesulfonyl benzimidazole derivatives were about 80%. The structures characteristic were confirmed by IR, 1H-NMR, Elemental analysis and MS. The crystal structure of compound a2 was determined via X-ray single crystal diffraction and it belongs to monoclinic system with space group C2/c, and the unit cell parameters are α = 2.8252(2) nm, b = 0.97696(7) nm, c = 1.64828(12) nm, α = 90°, β = 92.053(2)°, γ = 90°, V = 4.5466(6) nm3, Z = 8, F (000) = 2024, Mr =481.40, Dc = 1.407 g/cm3, μ = 0.784 mm–1, R1 = 0.0495, wR2 = 0.1517. The results show that the reactions of 2-alkylbenzimidazoles containing active hydrogen with ferrocenesulfonyl chloride gave 1-ferrocenesulfonyl-2-alkylbenzimidazoles in good yields.