Synthesis, characterization and crystal structure of 1-ferrocenesulfonyl-2-1ong carbon chain alkyl benzimidazole

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: ferrocenesulfonyl benzimidazol synthesis,characteristic crystal structure
• 年，卷（期）: 2009,（1）
• 页码范围: 52-57
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11458-009-0008-9

摘要

Six new 1-ferrocenesulfonyl-2-benzimidazole derivatives were prepared by the reaction of ferrocene-sulfonyl 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 a=2.8252(2)nm, b=0.97696(7)nm, c=1.64828(12)nm, a=90°, β=92.053(2)°,y = 90°, V= 4.5466(6) nm3, Z= 8, F(000) =2024, Mr=481.40, Dc=l.407g/cm3, μ=0.784mm-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.