Organic Letters
Letter
A.; Paton, R. S.; Mu
̈
ller, S.; Knapp, S.; Brennan, P. E.; Conway, S. J.
ASSOCIATED CONTENT
* Supporting Information
The Supporting Information is available free of charge on the
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Accession Codes
supplementary crystallographic data for this paper. These
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AUTHOR INFORMATION
Corresponding Authors
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ORCID
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Author Contributions
∥R.H., X.C., and C.M. contributed equally to this work.
Notes
(6) For a book review of NHC organocatalytic reactions, see:
(a) Cavallo, L.; Cazin, C. S. J. N-Heterocyclic Carbenes in Transition
Metal Catalysis and Organocatalysis; Cazin, C. S. J., Eds; Springer: The
Netherlands, 2011. For selected reviews in NHC organocatalysis, see:
(b) Grossmann, A.; Enders, D. Angew. Chem., Int. Ed. 2012, 51, 314.
(c) Mahatthananchai, J.; Bode, J. W. Chem. Sci. 2012, 3, 192.
(d) Cohen, D. T.; Scheidt, K. A. Chem. Sci. 2012, 3, 53. (e) Izquierdo,
J.; Hutson, G. E.; Cohen, D. T.; Scheidt, K. A. Angew. Chem., Int. Ed.
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The authors declare no competing financial interest.
ACKNOWLEDGMENTS
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We acknowledge financial support from the National Natural
Science Foundation of China (Nos. 21772029, 21472028),
National Key Technologies R&D Program (No. 2014BA-
D23B01), “Thousand Talent Plan”, The 10 Talent Plan
(Shicengci) of Guizhou Province, Guizhou Province Returned
Oversea Student Science and Technology Activity Program,
Guizhou University (China), Singapore National Research
Foundation (NRF-NRFI2016-06), the Ministry of Education
of Singapore (MOE2013-T2-2-003; MOE2016-T2-1-032;
RG108/16), A*STAR Individual Research Grant
(A1783c0008), Nanyang Research Award Grant, and Nanyang
Technological University.
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2013, 42, 4906. (h) Fevre, M.; Pinaud, J.; Gnanou, Y.; Vignolle, J.;
Taton, D. Chem. Soc. Rev. 2013, 42, 2142. (i) Hopkinson, M. N.;
Richter, C.; Schedler, M.; Glorius, F. Nature 2014, 510, 485.
(j) Mahatthananchai, J.; Bode, J. W. Acc. Chem. Res. 2014, 47, 696.
(k) Flanigan, D. M.; Romanov-Michailidis, F.; White, N. A.; Rovis, T.
Chem. Rev. 2015, 115, 9307. (l) Menon, R. S.; Biju, A. T.; Nair, V.
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Angew. Chem., Int. Ed. 2016, 55, 14912. (n) Chen, X.; Liu, Q.;
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