Please Gd roe en no Ct ha ed mj u iss tt r my argins
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Journal Name
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separated aqueous medium containing CN620 could be
recycled directly for 10 runs with the products in HPLC yields
from 74 to 85% (Figure 2).
Y. Ema, M. Torii, Y. Ishizuka and I. Souta, Tetrahedron Lett.,
DOI: 10.1039/D0GC01727B
2
010, 51, 3619-3622; (b) E. Amadio, J. González-Fabra, D.
Carraro, W. Denis, B. Gjoka, C. Zonta, K. Bartik, F. Cavani, S.
Solmi, C. Bo and G. Licini, Adv. Synth. Catal., 2018, 360, 3286-
3
296.
Conclusions
10 (a) N. García, R. Rubio-Presa, P. García-García, M. A.
Fernández-Rodríguez, M. R. Pedrosa, F. J. Arnáiz and R. Sanz,
Green Chem., 2016, 18, 2335-2340; (b) A. M. Khenkin and R.
Neumann, Adv. Synth. Catal., 2002, 344, 1017-1021.
In summary, an environmentally-friendly and effective
metal-free aqueous photocatalytic C-C bond oxidative cleavage
of vicinal diols has been developed using CN620 as a recyclable 11 H. Noack, V. Georgiev, M. R. Blomberg, P. E. Siegbahn and A.
J. Johansson, Inorg Chem., 2011, 50, 1194-1202.
photocatalyst and CTAB as the surfactant. A series of vicinal
diols could be efficiently cleaved and converted into the
corresponding aldehydes or ketones. TEM revealed that the
micelle is probably on the surface of the catalyst. Preliminary
mechanism revealed that both the superoxide radicals and
valence band holes played an important role in the reaction
process. Further isotope experiment confirmed β-scission/HAT
process and oxidation/hydrolysis/dehydration process in the
reaction which is different from previous reports. Notably, the
CN620/micellar catalyst system could be recycled and reused 10
times with satisfactory yield. Moreover, this reaction could be
carried out under solar light irradiation and is applicable for
large-scale reactions. These features make this reaction a
potential green and sustainable approach for both academic
and industrial applications.
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Conflicts of interest
There are no conflicts to declare.
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Cong, ACS Catal., 2017,
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