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Plea sDe a dl t oo nn oT tr aa nd sj ua cs tt i om nasrgins
DOI: 10.1039/C8DT02254B
Journal Name
PMO@SiO -SO
ARTICLE
2
3
H, PMO-NH
2
@SiO
2
and PMO@SiO
2
Notes and references
nanoparticles on the acid-basic cascade reaction of
benzaldehyde dimethylacetal to benzylidenemalononitrile
1
.
M. Wu, Y. Chen, L. Zhang, X. Li, X. Cai, Y. Du, L. Zhang and
J. Shi, J. Mater. Chem. B, 2015, 3, 766-775.
is shown in Table 1. PMO-NH @SiO -SO H nanoparticles 2.
K. Moeller, J. Kobler and T. Bein, Adv. Funct. Mater., 2007,
17, 605-612.
X. Wang, Y. Zhang, W. Luo, A. A. Elzatahry, X. Cheng, A.
Alghamdi, A. M. Abdullah, Y. Deng and D. Zhao, Chem.
Mater., 2016, 28, 2356-2362.
W. Wang, P. Wang, X. Tang, A. A. Elzatahry, S. Wang, D.
Al-Dahyan, M. Zhao, C. Yao, C. T. Hung, X. Zhu, T. Zhao, X.
Li, F. Zhang and D. Zhao, ACS central science, 2017, 3, 839-
846.
2
2
3
show superior catalytic activity for the acid-basic cascade
reaction. 100% conversion of benzaldehyde
dimethylacetal and >99% yield of
benzylidenemalononitrile are realized after the reaction.
However, the PMO@SiO -SO H nanoparticles only show
3
.
4
.
2
3
the highest catalytic activity in the catalytic reaction of
benzaldehyde dimethylacetal to benzaldehyde, and PMO-
5
6
7
.
.
.
W. Wang, H. Long, T. Li, Y. Wang, S. Liu and H. Ru, Micro.
Meso. Mater., 2018, 258, 262-268.
R. Liu, Y. Zhang, X. Zhao, A. Agarwal, L. J. Mueller and P.
Feng, J. Am. Chem. Soc., 2010, 132, 1500-1501.
R. Liu, P. Liao, J. Liu and P. Feng, Langmuir, 2011, 27,
3095-3099.
2 2 2
NH @SiO or PMO@SiO nanoparticles cannot catalyze
the acid-basic cascade reaction. This finding suggests that
acidic SO H groups on the SiO shells and basic NH
2
3
2
groups on the PMO yolks are efficiently separated by the
unique structure, without occurs of neutralization. The
integration of both the acidic and basic functional groups 8.
in the yolk-shell nanoreactor can shorten the reaction
J. Liu, S. Z. Qiao, S. B. Hartono and G. Q. Lu, Angew.
Chem., Inter. Ed., 2010, 49, 4981-4985.
L. S. Lin, X. Yang, Z. Zhou, Z. Yang, O. Jacobson, Y. Liu, A.
Yang, G. Niu, J. Song, H. H. Yang and X. Chen, Adv. Mater.,
9
.
pathway. Furthermore, the high yield and selectivity of
the PMO-NH @SiO -SO H nanoparticles suggest that the
2
2
3
2
017, 29.
appropriate location of the active sites in the yolk-shell
structure is essential to make different kinds of functional
1
0.
J. Wang, W. Li, F. Wang, Y. Xia, A. M. Asiri and D. Zhao,
Nanoscale, 2014, 6, 3217-3222.
groups work efficiently during the catalytic process, 11.
especially for the groups that are incompatible with each
M. Qiao, X. Lei, Y. Ma, L. Tian, X. He, K. Su and Q. Zhang,
Nano Res., 2018, 11, 1500-1519.
J. Liu, S. Z. Qiao, J. S. Chen, X. W. Lou, X. Xing and G. Q. Lu,
Chem. Commun., 2011, 47, 12578-12591.
B. Jin, E. Jung, M. Ma, S. Kim, K. Zhang, J. I. Kim, Y. Son and
J. H. Park, J. Mater. Chem. A, 2018, 6, 2585-2592.
X. W. Lou, L. A. Archer and Z. Yang, Adv. Mater., 2008, 20,
1
1
1
1
1
2.
3.
4.
5.
6.
other.
Conclusions
3
987-4019.
L. L. Xing, G. G. Zhao, K. J. Huang and X. Wu, Dalton T.,
018, 47, 2256-2265.
In summary, yolk-shell structured nanoparticles with two
kinds of different compositions: PMO nanospheres and Au
nanoparticles as the cores encapsulated in mesoporous
2
L. S. Lin, J. Song, H. H. Yang and X. Chen, Adv. Mater.,
2018, 30.
silica shells were prepared. By a co-condensation method, 17.
Y. Yang, X. Liu, X. Li, J. Zhao, S. Bai, J. Liu and Q. Yang,
Angew. Chem., Inter. Ed., 2012, 51, 9164-9168.
Y. Chen, Q. Wang and T. Wang, Dalton T., 2015, 44, 8867-
2
the PMO@SiO nanoparticles could be functionalized with
different catalytic groups (even incompatible acidic and
basic groups) in a controllable manner: PMO cores with
1
8.
8
875.
1
2
9.
0.
R. Purbia and S. Paria, Nanoscale, 2015, 7, 19789-19873.
J. Liu, H. Q. Yang, F. Kleitz, Z. G. Chen, T. Yang, E.
Strounina, G. Q. Lu and S. Z. Qiao, Adv. Funct. Mater.,
2012, 22, 591-599.
2 3
NH groups and mesoporous silica shell with SO H groups.
More importantly, as the bifunctional catalysts for
catalyzing the deacetalization-Henry cascade reaction, the
2
1.
Q. Yue, J. Li, Y. Zhang, X. Cheng, X. Chen, P. Pan, J. Su, A. A.
Elzatahry, A. Alghamdi, Y. Deng and D. Zhao, J. Am. Chem.
Soc., 2017, 139, 15486-15493.
Y. Chen, H. Chen, M. Ma, F. Chen, L. Guo, L. Zhang and J.
Shi, J. Mater. Chem., 2011, 21, 5290-5298.
C. Zhang, Z.-C. Yao, Q. Ding, J. J. Choi, Z. Ahmad, M.-W.
Chang and J.-S. Li, Acs Appl. Mater. Inter., 2017, 9, 21485-
21495.
prepared PMO-NH
efficient catalytic performance. Besides, the as-
synthesized yolk-shell Au@SiO nanospheres were applied
2 2 3
@SiO -SO H nanoparticles show highly
2
2
2
2.
3.
in 4-nitrophenol and nitrobenzene catalysis, respectively.
Acknowledgements
2
2
2
4.
5.
6.
L. Zhang, S. Qiao, Y. Jin, Z. Chen, H. Gu and G. Q. Lu, Adv.
Mater., 2008, 20, 805-809.
J. Zhang, K. Wang, Q. Xu, Y. Zhou, F. Cheng and S. Guo, Acs
Nano, 2015, 9, 3369-3376.
This work was supported by the Young Thousand Talented
Program, the National Natural Science Foundation of China
(Grant No. 2162200022, 21671073, 21671074, 21621001,
21371067 and 21373095) and the Doctoral Fund of Yunnan
H. Hu, B. Guan, B. Xia and X. W. Lou, J. Am. Chem. Soc.,
Normal University (No. 2017ZB015).
2
015, 137, 5590-5595.
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