Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
Weiyou Zhou et al.
Figure 1. (A) The recyclability of the catalyst CoTPP-Zn2Al-LDH catalyst;
(B) XRD pattern of recycled and fresh catalyst. Reaction conditions: alcohol
3 mmol, solvent 10 mL, O2 20 mL/min, NHPI 0.6 mmol, CoTPP-Zn2Al-LDH
30 mg.
ionic liquid [Imim-PEG1000-TEMPO][CuCl−2 ]: An effi-
(Figure 1A), and the selectivities were above 99%.
XRD pattern for the reused catalyst suggested that the
layered structure was completely preserved after several
cient and reusable catalytic system for solvent-free aer-
obic oxidation of alcohols New J. Chem. 38 4149;
(e) Shojaei A F, Tabatabaeian K, Zanjanchi M A,
Moafi H F and Modirpanah N 2015 Synthesis, char-
acterization and study of catalytic activity of Silver
doped ZnO nanocomposite as an efficient catalyst for
selective oxidation of benzyl alcohol J. Chem. Sci.
127 481
4. Conclusions
In this work, aerobic oxidation of alcohols has
been investigated by NHPI combined with CoTPP-
intercalated hydrotalcites. The results indicated that
CoTPP-Zn2Al-LDH is an efficient catalyst for the oxi-
dation of alcohols to corresponding carbonyl com-
pounds through O2/NHPI system and tolerates a wide
range of substrates. The catalyst recycling test sug-
gested that the CoPcTs-Zn2Al-LDH is durable and quite
good under the tested reaction conditions. The work on
the development of more efficient catalysts based on the
hybrid and structure-activity relationship is in progress.
2. Ishii Y, Nakayama K, Takeno M, Sakaguchi S,
Iwahama T and Nishiyama Y 1995 Novel catal-
ysis by N-hydroxyphthalimide in the oxidation of
organic substrates by molecular oxygen J. Org. Chem.
60 3934
3. (a) Iwahama T, Yoshino Y, Keitoku T, Sakaguchi S
and Ishii Y 2000 Efficient oxidation of alcohols to car-
bonyl compounds with molecular oxygen catalyzed by
N-hydroxyphthalimide combined with a Co species J. Org.
Chem. 65 6502; (b) Iwahama T, Sakaguchi S, Nishiyama
Y and Ishii Y 1995 Aerobic oxidation of alcohols to car-
bonyl compounds catalyzed by N-hydroxyphthalimide
(NHPI) combined with Co(acac)3 Tetrahedron Lett. 36
6923
4. (a) Figiel P J and Sobcz ak J M 2007 Aerobic oxidation
of alcohols and alkylaromatics with dioxygen catalysed
by N-hydroxyphthalimide with vanadium co-catalysts
New J. Chem. 31 1668; (b) Figiel P J and Sobczak J M
2009 Mechanistic investigation of the catalytic system
based on N-hydroxy-phthalimide with vanadium co-
catalysts for aerobic oxidation of alcohols with dioxygen
J. Catal. 263 167
Acknowledgements
This work was supported by the National Natural Science
Foundation of China (Grant No. 21403018) and Prospec-
tive Joint Research Project on the Industry, Education and
Research of Jiangsu Province (BY2014037-17).
5. Figiel P J, Sobczak J M and Ziółkowski J J 2004 New
efficient aerobic oxidation of some alcohols with dioxy-
gen catalyzed by N-hydroxyphtalimide with vanadium
co-catalysts Chem. Commun. 244
6. (a) Chen B, Li J, Yang G and Gao S 2015 Aerobic oxi-
dation of benzyl alcohols using a novel combination of
N-hydroxyphthalimide (NHPI) with HNO3 and CuBr2
Res. Chem. Intermed. 41 3929; (b) Yang G, Wang L,
Li J, Zhang Y, Dong X L, Lv Y and Gao S 2012 Aer-
obic oxidation of alcohols using a novel combination
of N-hydroxyphthalimide (NHPI) and CuBr Res. Chem.
Intermed. 38 775; (c) Kompanets M O, Kushch O V,
Litvinov Y E, Pliekhov O L, Novikova K V, Novokhatko
A O, Shendrik A N, Vasilyev A V and Opeida I O
References
1. (a) Caron S, Dugger R W, Ruggeri S G, Ragan J A and
Ripin D H B 2006 Large-scale oxidations in the phar-
maceutical industry Chem. Rev. 106 2943; (b) Delaude
L and Laszlo P 1996 A novel oxidizing reagent based
on potassium ferrate (VI) 1 J. Org. Chem. 61 6360; (c)
Mahdavi V and Mardani M 2012 Selective oxidation
of benzyl alcohol with tert-butylhydroperoxide catal-
ysed via Mn (II) 2, 2-bipyridine complexes immobi-
lized over the mesoporous hexagonal molecular sieves
(HMS) J. Chem. Sci. 124 1107; (d) Wang Z G, Jin Y,
Cao X H and Lu M 2014 Bi-functionalized PEG1000