Y.-L. Ren et al. / Catalysis Communications 32 (2013) 15–17
17
Table 2
3 2 2
Cu(NO ) ·3H
O-catalyzed conversion of various arylboronic acids to aryl iodides.a
copper-catalyzed method with KI as the iodine source [31], the present
procedure avoids the use of any ligand, the oxidant and heating condi-
tion. Moreover, the use of low-boiling solvent is favorable for the sepa-
ration and purification of the product. To the best of our knowledge, this
Productb
2
is the first example on using I as the iodine source to perform the
iodo-deboronation of arylboronic acids. Further mechanistic studies
for this reaction are underway.
Entry Substrate
Cu(NO
3
)
2
·
Time Isolated
3
H
2
O(mol%) (h)
yield (%)
1
2
3
5
6
69
(86% GC yield)
5
5
6
6
77
Acknowledgments
(96 GC yield)
81
The authors would like to thank the financial supports from the
National Natural Science Foundation of China (Grant No. 21002023)
and the National Basic Research Program of China (973 Program, Grant
No. 2011CB211702).
(90 GC yield)
4
5
6
56
5
6
20
5
15
6
72
85
Appendix A. Supplementary data
7
5
5
6
6
68
(96 GC yield)
8c
49
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4
. Conclusion
In conclusion, Cu(NO
3 2
)
·3H
2
O was demonstrated to be of ability to
as
the iodide source at room temperature. Compared with the previous
catalyze the conversion of arylboronic acids to aryl iodides with I
2
(2010) 1964.