Base-Free Suzuki–Miyaura Coupling Reaction Using Palladium(II) Supported Catalyst in Water
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The carbon–carbon bond formation via Suzuki–Miyaura reaction was performed in water as green solvent. Pd(OAc)2(PPh3)2 supported on magnesium hydroxide and cerium carbonate hydroxide composite was prepared and characterized by various techniques. The cross-coupling reaction of aryl halides carried out in water using mild conditions. The effects of temperature, solvents, the amount of catalyst and leaving groups were studied to find the optimization conditions for cross-coupling reaction. Various aryl halides were smoothly transformed into the biaryls in good yields. In addition, the catalyst also exhibited stability and catalytic performance in the cross-coupling of aryl halides.
A new approach is developed for carbon–carbon bond formation via Suzuki–Miyaura reaction.2 Pd(OAc)2(PPh3)2 supported on mixed magnesium hydroxide and cerium carbonate hydroxide were prepared and characterized by XRD, XPS, SEM–EDX techniques. The cross-coupling reaction of aryl halides can be carried out in water and under mild conditions (80 °C).
KeywordsBase-free Suzuki–Miyaura coupling Water as solvent Pd(II) catalyzed Magnesium hydroxide and cerium carbonate hydroxide composite
The present work was supported by the SERB (DST) and the University of Delhi. We thank USIC (University of Delhi, Delhi, India) for providing the NMR, IR instrument facilities and Japan Advanced Institute of Science and Technology (Japan) for SEM–EDS, XPS, XRD instruments facilities. RT is thankful to SERB (DST) senior research fellowship and also thankful to JAIST for JASSO fellowship during Japan stay. This study was funded by Science and Engineering Research Board (EMR/2016/002976).