A combination of dimethylzinc, perfluoroalkyliodide, and LiCl afforded a new type of perfluoroalkyl (RF) zinc ate complex. These complexes show much greater thermal stability than conventional perfluorinated metal species, such as RF–lithium species and Grignardreagents, and they can be used at room temperature or higher. The results of DFT calculations on the origin of the enhanced stability are
二甲基锌,全氟烷基碘化物和LiCl的组合提供了一种新型的全氟烷基(R F)锌盐配合物。这些络合物显示出比常规的全氟化金属物种(例如R F –锂物种和格氏试剂)更高的热稳定性,并且可以在室温或更高温度下使用。报道了DFT计算的结果,指出了增强的稳定性的起源,并证明了R F-锌酸盐配合物的合成效用。
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作者:T. T. Vasil'eva、N. E. Mysova、O. V. Chakhovskaya、A. B. Terent'ev
DOI:10.1023/a:1020857730190
日期:——
The yield and structure of products of the Barbier-type addition of alkyl halides (perfluorobutyl iodide, allyl bromide, allyl iodide, and hexyl iodide) to para-substituted benzaldehydes in the presence of pentacarbonyliron are essentially determined, on the one hand, by the ability Of alkyl halide to be reduced to carbanion and, on the other, by the electrophilicity of the aldehyde reaction center which in turn depends on the nature of para-substituent in the aromatic ring.