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A. V. Arzumanyan et al.
Letter
as the model reactant, and we obtained silanol 2b in gram
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CuCO /aqueous t-BuOOH oxidizing system.
3
Because much less is known about the synthesis and
physicochemical properties of siloxysilanols than about or-
ganosilanols, the possibility of obtaining the former in
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13
gram amounts is important, as it would permit studies on
the possibility of using siloxy-containing silanols as struc-
tural units in polymer and supramolecular chemistry.
The structures of the resulting silanols 2a and 2b were
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(
4
1
13
29
1
29
confirmed by H, C, Si, and H, Si-HMBC NMR spectro-
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(
(
10) Limnios, D.; Kokotos, C. G. ACS Catal. 2013, 3, 2239.
14
and high-resolution mass spectrometry.
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Thus, taking into consideration the simplicity and effi-
ciency of the catalytic reaction and the availability of the
reagents used (CuCO /aqueous t-BuOOH), this new method
3
for synthesizing silanols and siloxanols has excellent poten-
tial for the synthesis of new organosilicon compounds and
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3
1
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Funding Information
This work was supported by a grant of the Russian Science Founda-
tion (RSF grant no. 14-23-00231).
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u
asni
S
ecin
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e
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Supporting Information
Supporting information for this article is available online at
https://doi.org/10.1055/s-0036-1591512.
S
u
p
p
ortioIgnfrm oaitn
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Silane 1a (2 g, 17.199 mmol, 1 equiv), 70% aq t-BuOOH (4.44 g,
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3
1
972, 94, 3469. (b) Nagai, Y.; Honda, K.; Migita, T. J. Organomet.
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bottomed flask at 80 °C for 9 h. The yield of 2a was determined
by GLC (90%). The solvent was then evaporated (150-200 mbar,
Тbath = 40 °C), and the residue was dissolved in hexane (60-80
mL). The solution was filtered through a short pad of Celite 545
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(0.4–0.5 cm) and the hexane was then evaporated (250-300
mbar, Тbath = 40 °C). Distillation at reduced pressure to give a
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