Paper
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Scheme 3 Possible mechanism.
Conclusions
In conclusion, we have demonstrated a general method for
highly selective decarboxylative coupling of a-oxocarboxylates
with aryltriuoroborates enabled by versatile Ag(I)/persulfate-
catalyzed system. The development of this coupling further
highlights the benecial use of inexpensive Ag(I) catalysts for
decarboxylation, while exploiting K2S2O8 promoter. We antici-
pate that this strategy will nd widespread use as a practical
alternative to the classic ketone construction in organic
synthesis. Most notably, this new protocol features the
synthesis of chalcone and chromone derivatives. Further
mechanistic studies and extension to a variety of coupling
partners are currently underway in our laboratories.
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Conflicts of interest
There are no conicts to declare.
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Acknowledgements
This work was supported by the State Key Laboratory of
Medicinal Chemical Biology (2017001), National innovative
undertaking plan of college students (201713743012), Young
talent training plan Of Jilin Science and Technology Bureau
(20156429), and NSFC (81773692).
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