Journal of Flow Chemistry

, Volume 8, Issue 3–4, pp 117–121 | Cite as

A flow split test to discriminating between heterogeneous and homogeneous contributions in Suzuki coupling

  • Amine Bourouina
  • Valérie MeilleEmail author
  • Claude de BellefonEmail author


The homogeneous vs heterogeneous contributions when using solid catalysts for the Suzuki-Miyaura coupling is still disputed. Leaching is often observed and quantified albeit with unclear conclusions about contributions of the leached species and of the solid catalyst to the global catalytic activity. In this work, a new flow reactor design to discriminate both contributions is proposed. With the help of a simple reactor model, it has been possible to conclude that the coupling of 4-iodoacetophenone with phenylboronic acid proceeded with the leached homogeneous species only, whatever the solid Pd/silica used, whereas chloro-derivatives behaves differently. This reactor is simple to build and could be of general use to reveal actual heterogeneous vs homogeneous catalysis for many reactions.


Suzuki-Miyaura Heterogeneous Leaching Palladium 



ED Chimie de Lyon is gratefully acknowledged for funding the PhD thesis of A. Bourouina. CNRS, CPE Lyon and UCBL are also thanked for financial support.

Supplementary material

41981_2018_20_MOESM1_ESM.pdf (639 kb)
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Copyright information

© Akadémiai Kiadó 2018

Authors and Affiliations

  1. 1.Laboratoire de Génie des Procédés Catalytiques (UMR 5285 CNRS-Université Lyon 1-CPE Lyon), Institut de Chimie de Lyon,Université de LyonLyonFrance

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