Alternative method for alkylation of arylpolyhalomethanes with trialkylborane in the presence of magnesium
作者:Sylvie Condon、Jean-Yves Nédélec
DOI:10.1016/j.jorganchem.2009.09.022
日期:2010.1
Reduction of benzal halide derivatives and α,α,α,-trichloromethylbenzene by magnesium powder in DMAc affords α-halocarbanions which then react with triethylborane to give alkylated products. After oxidation with H2O2–NaOH, secondary or tertiary alcohols are obtained. Under the same conditions, 1,1-diphenylpropane is obtained from α,α-dichlorodiphenylmethane.
用DMAc中的镁粉还原苯甲酰卤衍生物和α,α,α,-三氯甲基苯可得到α-卤代碳阴离子,然后与三乙基硼烷反应生成烷基化产物。用H 2 O 2 -NaOH氧化后,得到仲或叔醇。在相同条件下,从α,α-二氯二苯基甲烷获得1,1-二苯丙烷。