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ChemComm
Page 4 of 4
DOI: 10.1039/C8CC06612D
COMMUNICATION
Journal Name
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Scheme 2 Proposed catalytic cycle for the transfer hydrogenation of aldehydes.
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Full conversion was also achieved when using K2CO3 as the
base. However, the reduction with Cs2CO3 was slightly
faster, e.g. 93% conversion with the latter vs 85% with the
former in 0.5 h under otherwise the same conditions as in
Table 1 (Entry 9).
In conclusion, we have developed, to the best of our knowledge,
the first examples of high-yielding TH of various aldehydes using
methanol as both the hydrogen source and solvent under moderate
conditions, necessitating no inert atmosphere or special equipment.
The rhodium catalyst showed high chemoselectivity towards the
reduction of aldehydes in the presence of different functional
groups, allowing further transformations to be performed.
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We thank The Higher Committee for Education Development in Iraq
for financial support.
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J. Cheng, M. Zhu, C. Wang, J. Li, X. Jiang, Y. Wei, W. Tang, D.
Xue and J. Xiao, Chem. Sci., 2016, 7, 4428t4434.
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Conflicts of interest
There are no conflicts of interest to declare.
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