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A molecular electron density theory study of the mechanism, chemo- and stereoselectivity of the epoxidation reaction of R-carvone with peracetic acid

机译:R-Carvone用过乙酸的机理,化学和立体选择性的分子电子密度理论研究

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The epoxidation reaction of R-carvone 8 with peracetic acid 9 has been studied within the molecular electron density theory at the B3LYP/6-311(d,p) computational level. The chemo- and stereoisomeric reaction paths involving the two C-C double bonds of R-carvone 8 have been studied. DFT calculations account for the high chemoselectivity involving the C-C double bond of the isopropenyl group and the low diastereoselectivity, in complete agreement with the experimental outcomes. The Baeyer-Villiger reaction involving the carbonyl group of R-carvone 8 has also been analysed. A bonding evolution theory analysis of the epoxidation reaction shows the complexity of the bonding changes taking place along this reaction. Formation of the oxirane ring takes place asynchronously at the end of the reaction by attack of anionic oxygen on the two carbons of the isopropenyl C-C double bond.
机译:在B3LYP / 6-311(D,P)计算水平的分子电子密度理论内研究了R-Carvone 8与过乙酸9的环氧化反应。 研究了涉及R-CARVONE 8的两个C-C双键的化学和立体异构反应路径。 DFT计算涉及涉及异丙烯基的C-C双键的高化学胶合作用和低的非对映选择性,与实验结果完全一致。 还分析了涉及R-Carvone 8的羰基的Baeyer-Villiger反应。 环氧化反应的粘合演化理论分析表明沿这种反应发生的粘合变化的复杂性。 通过对异丙烯基C-C双键的两种碳的阴离子氧气发生阴离子氧的反应结束时,对氧化乙烷环的形成发生异步。

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    《RSC Advances》 |2019年第49期|共10页
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  • 正文语种 eng
  • 中图分类 化学;
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