- 作者: --
- 作者服務機構: Pakistan Council of Scientific and Industrial Research, PCSIR Laboratories Complex, Jamrud Road, Peshawar-25120, Pakistan
- 中文摘要: Friedel-Crafts cycloalkylation of biphenyl with 2,3-dichlorobutyltrichlorosilane(Cl3Si-CH2CHClCHClCH3) at a temperature of 100 °C in the presence of anhydrous aluminum chloride catalyst gave cyclized product, 9-methyl-9-(2-trichlorosilylethyl)fluorene 1a, in 33% yield. Methylation of 1a with nucleophilic reagent such as methyl magnesium chloride, gave 9-methyl-9-(2-trimethylsilylethyl)fluorene 2 while bromination of 2 with excess amount of bromine in DMF resulted in 2,7-dibromo-9-methyl-9-(2-trichlorosilyl)fluorene 3 in good yield. All the compounds were structurally identified by GC/MS, 1H and 13C-NMR spectroscopy.
- 英文摘要: --
- 中文關鍵字: Friedel-Crafts cycloalkylation; Organosilicon fluorenyl derivatives.
- 英文關鍵字: --