Highly Efficient Asymmetric Paternò-Büchi Reaction in a Microcapillary Reactor Utilizing Slug Flow

Highly Efficient Asymmetric Paternò-Büchi Reaction in a Microcapillary Reactor Utilizing Slug Flow
复制标题

利用段塞流在微毛细管反应器中进行高效不对称 Patternò-Büchi 反应

DOI:
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发表时间:
2015
影响因子:
2.7
通讯作者:
K. Kakiuchi
K. Kakiuchi
中科院分区:
化学3区
文献类型:
--
作者:
Kimitada Terao;Y. Nishiyama;K. Kakiuchi

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在连续流动微毛细管反应器中,研究了2,3-二甲基-2-丁烯与苯甲酰甲酸酯在手性薄荷基辅助剂存在下的不对称Paternal-Büchi型光反应。氟化乙烯丙烯(FEP)微毛细管反应器采用正常的单层流动模式,得到氧杂环丁烷产品比间歇系统具有更好的效率。此外,在微毛细管反应器中,以N2或H2O为惰性试剂的弹状流模式,由于光分散、搅拌和薄层膜效应的协同作用,大大提高了反应效率。根据反应器参数计算能量效率,讨论了各条件下的反应效率。
An asymmetric Paternò-Büchi-type photoreaction between 2,3-dimethyl-2-butene and benzoylformic acid ester with a chiral menthyl auxiliary was studied in a continuous-flow microcapillary reactor. The fluorinated ethylene propylene (FEP) microcapillary reactor using normal one-layer flow mode gave oxetane products with better efficiency than the batch system. In addition, the slug flow mode in microcapillary reactor using inactive reagent, N2 gas or H2O, improved the reaction efficiency dramatically because of synergistic light dispersion, stirring and thin layer film effects. The reaction efficiencies under each condition were discussed as energy efficiencies calculated from reactors’ parameters.
DOI: 10.1002/chem.201203927
发表时间: 2013-02-01
影响因子: 4.3
作者:
Wojcik, Felix;O'Brien, Alexander G.;Hartmann, Laura
通讯作者: Hartmann, Laura