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ChemComm
Page 4 of 5
DOI: 10.1039/C7CC07042J
COMMUNICATION
Journal Name
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Figure 1 Fluorescence emission of 2b and 2ii: samples were measured in CH2Cl2, c = 1.0
μM.
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In conclusion, we have developed a novel gold(I)-catalyzed
intramolecular
tandem
cyclization
reaction
of
alkylidenecyclopropane-containing alkynes provided an
efficient access to 11H-benzo[a]fluorene derivatives in
moderation to excellent yields under mild conditions. In
addition, a plausible mechanism has been proposed on the
basis of deuterium-labeling and control experiments and a
promising application of these 11H-benzo[a]fluorene products
for blue OLEDs has been also explored. Further investigations
on the mechanistic details and exploration of new
methodology based on gold(I)-catalyzed transformations of
MCPs are currently underway in our laboratory.
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Conflicts of interest
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There are no conflicts of interest to declare.
Acknowledgment
We are grateful for the financial support from the National
Basic Research Program of China (973)-2015CB856603, the
Strategic Priority Research Program of the Chinese Academy of
Sciences, Grant No. XDB20000000, the National Natural
Science Foundation of China (20472096, 21372241, 21572052,
20672127, 21421091, 21372250, 21121062, 21302203,
20732008, 21772037 and 21772226), and the Fundamental
Research Funds for the Central Universities 222201717003.
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Notes and references
1. L.-P. Liu and G. B. Hammond, Chem. Soc. Rev., 2012, 41, 3129.
2. (a) A. Fürstner and P. Hannen, Chem. - Eur. J., 2006, 12, 3006;
(b) L. Xin, K. -S. J. Joshua and F. D. Toste, Angew. Chem. Int. Ed.,
4 | J. Name., 2012, 00, 1-3
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