Reactivities of allenic and olefinic Michael acceptors towards phosphines.
Reactivities of allenic and olefinic Michael acceptors towards phosphines.
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DOI：
10.1039/d1cc06786a
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发表时间：
2022-02
影响因子：
4.9
通讯作者：
Feng An;Harish Jangra;Yin Wei;M. Shi;H. Zipse;A. Ofial
中科院分区：
文献类型：
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作者：
Feng An;Harish Jangra;Yin Wei;M. Shi;H. Zipse;A. Ofial
通过光度法和NMR光谱法跟踪三丁基膦与联烯和烯属迈克尔受体在二氯甲烷中在20 °C下的反应动力学。结合DFT计算的甲基阴离子亲和力揭示了相关的反加成障碍膦催化反应时，使用的混合物的丙二烯和烯属底物。
The kinetics of the reactions of tributylphosphine with allenic and olefinic Michael acceptors in dichloromethane at 20 °C was followed by photometric and NMR spectroscopic methods. Combination with DFT-calculated methyl anion affinities revealed the relevance of retroaddition barriers in phosphine-catalysed reactions when mixtures of allenic and olefinic substrates are used.