Organic Letters
Letter
spectral and HRMS data were obtained from the Korea Basic
Science Institute, Gwangju Center and Daegu Center.
Scheme 6. Proposed Mechanism
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The Supporting Information is available free of charge on the
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Accession Codes
CCDC 1576196 contains the supplementary crystallographic
data for this paper. These data can be obtained free of charge via
Crystallographic Data Centre, 12 Union Road, Cambridge
CB2 1EZ, UK; fax: +44 1223 336033.
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AUTHOR INFORMATION
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(13) Baruah, S.; Kaishap, P. P.; Gogoi, S. Chem. Commun. 2016, 52,
13004.
(14) We failed to detect any intermediate for the formation of A. It is
not clear when decarboxylation and C−H activation took place in the
formation of chalcone A. In addition, we found that the suggested
complexes in ref 13 were not the intermediates in this transformation.
(15) We proposed that further aldol condensation might be block in t-
Corresponding Author
ORCID
Notes
(16) (a) Tabatabaeian, K.; Mamaghani, M.; Mahmoodi, N. O.;
Keshavarz, E. ARKIVOC 2009, 68. (b) Zhang, G.-F.; Li, Y.; Xie, X.-Q.;
Ding, C.-R. Org. Lett. 2017, 19, 1216.
(17) The role of ruthenium and base in the formation of
homoisoflavonoid and flavone was studied in both t-AmOH and
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
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This research was supported by National Research Foundation
of Korea (NRF) grants funded by the Korea government (MSIP)
(NRF-2015R1A4A1041036, NRF-2017R1A2B2002929). The
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