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本文报道了利用ＭｃＭｕｒｒｙ反应，由丙酮还原偶联合成２，３—二甲基丁烯—２（ＤＭＢ—２）的实验结果。实验考察了镁粉还原四氯化钛的时间、丙酮与四氯化钛之比等因素对ＤＭＢ—２收率的影响。探讨了低价钛试剂活性物的价态与ＤＭＢ—２收率之间的关系。实验表明，大部分ＤＭＢ—２是在最初几分钟内生成的，每摩尔的低价钛试剂最多可转化９摩尔以上的丙酮。
In this paper, we report the experimental results of reduction of 2,3-dimethylbutene-2 (DMB-2) by acetone using McMurry reaction. The effect of magnesium powder on titanium tetrachloride time and the ratio of acetone to titanium tetrachloride on the yield of DMB-2 was investigated experimentally. The relationship between the valence of the active titanium reagent and the yield of DMB-2 was discussed. Experiments have shown that most of DMB-2 is produced in the first few minutes and can convert up to 9 moles of acetone per mole of low-priced titanium reagent.