Selective production of imines and benzimidazoles by cooperative bismuth(III)/transition metal ion catalysis
Cooperative Bi(III)/Co(II) and Bi(III)/Mn(II) heterogeneous catalysts have been developed enabling efficient oxidative annulations for preparing both cross-coupled imines and benzimidazoles under ambient conditions in an atom-economic and time-efficient manner, involving ambient air as oxidant and w...
Elmentve itt :
Szerzők: | |
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Dokumentumtípus: | Cikk |
Megjelent: |
2022
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Sorozat: | JOURNAL OF CATALYSIS
414 |
Tárgyszavak: | |
doi: | 10.1016/j.jcat.2022.09.008 |
mtmt: | 33097696 |
Online Access: | http://publicatio.bibl.u-szeged.hu/25524 |
Tartalmi kivonat: | Cooperative Bi(III)/Co(II) and Bi(III)/Mn(II) heterogeneous catalysts have been developed enabling efficient oxidative annulations for preparing both cross-coupled imines and benzimidazoles under ambient conditions in an atom-economic and time-efficient manner, involving ambient air as oxidant and without the need of any other additives. This is the first synergistic Lewis acid/transition metal catalyzed annulation which is potentiated by the interfaces between the building blocks of the catalysts. To achieve our goals, a useful fabrication process has been developed to heterogenize the transition metal ions via strong interactions on well-known Sillèn-type bismuth subcarbonate (bismutite). Their reusability, activity and selectivity as well as water-tolerance have made them potential competitors to effective heterogeneous/homogeneous catalysts reported previously. |
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Terjedelem/Fizikai jellemzők: | 163-178 |
ISSN: | 0021-9517 |