10.1002/adsc.201701567
Advanced Synthesis & Catalysis
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reaction was finished, the reaction mixture was cooled to
room temperature and diluted with ethyl acetate. The
aqueous phase was extracted with ethyl acetate acetate and
then washed with saturated NaCl. Thecombined organic
phases were dried over anhydrous Na2SO4 and
concentrated, and then purified by column chromatography
(petroleum ether/ethyl acetate, v/v=20/1) to afford the
target products 2.
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Acknowledgements
We thank the Natural Science Foundation of China (Nos.
21625203 and 21472039) and the Jiangxi Province Science and
Technology Project (Nos. 20171ACB20015 and 20165BCB18007)
for financial support.
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4
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