Organic Letters
Letter
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ultraviolet−visible (UV-Vis) absorption experiments, and the
results showed that no electron donor−acceptor (EDA)
complex was formed in the current reaction system (see
Figure S2 in the Supporting Information (SI) for details). To
gain further insights into this radical process, quantum yield
measurements were performed. A quantum yield (Φ) of 3 was
calculated (λ = 420 nm), thus indicating that a visible-light-
initiated radical chain propagation process is involved in the
reaction (see the SI for details).16
CCDC 1842329 contains the supplementary crystallographic
data for this paper. These data can be obtained free of charge
bridge Crystallographic Data Centre, 12 Union Road,
Cambridge CB2 1EZ, U.K.; fax: +44 1223 336033.
AUTHOR INFORMATION
Corresponding Authors
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Based on the above experiment results, a plausible reaction
mechanism is proposed in Scheme 5. First, initiation occurs by
ORCID
Scheme 5. Proposed Reaction Mechanism
Notes
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
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This work is financially supported by the National Natural
Science Foundation of China (No. 21702230), the Natural
Science Foundation of Jiangsu Province (No. BK20160743),
the Program for Jiangsu Province Innovative Research Team,
and the 111 Project (No. B16046).
REFERENCES
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ASSOCIATED CONTENT
* Supporting Information
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S
(6) (a) Jin, J.; MacMillan, D. W. C. Angew. Chem., Int. Ed. 2015, 54,
1565. (b) Klauck, F. J. R.; James, M. J.; Glorius, F. Angew. Chem., Int.
Ed. 2017, 56, 12336. (c) Nuhant, P.; Oderinde, M. S.; Genovino, J.;
The Supporting Information is available free of charge on the
́
Juneau, A.; Gagne, Y.; Allais, C.; Chinigo, G. M.; Choi, C.; Sach, N.
Experimental details and characterization data for the
W.; Bernier, L.; Fobian, Y. M.; Bundesmann, M. W.; Khunte, B.;
Frenette, M.; Fadeyi, O. O. Angew. Chem., Int. Ed. 2017, 56, 15309.
D
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