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Green Chemistry
Page 4 of 5
DOI: 10.1039/C6GC03306G
COMMUNICATION
Journal Name
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(a) D. Y. Kim and E. J. Park, Org. Lett., 2002, 4, 545-547; (b) S.
esters 7a-7b. However, compared to the corresponding
homogeneous reactions (entries 6-8), the enantioselectivty
was improved obviously under the ball milling condition.
In summary, a highly efficient chiral copper complexes
catalyzed enantioselective fluorination under solvent-free
conditions in a ball mill was reported. The intense mixing of
the reactants in the ball mill accelerates the reaction
efficiently. Simplicity of the reaction, solvent-free conditions,
short reaction time, high yields and enantioselectivities lead us
to conclude that the ball mill procedure is a significant version
of the described reaction.
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Acknowledgements
The research was supported by National Natural Science
Foundation of China (21402176) and Natural Science
Foundation of Zhejiang Province (LY14B020003).
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4 | Green. Chem., 2016, 00, 1-3
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