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Green Chemistry
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ARTICLE
Journal Name
Thomas, Chem. Soc. Rev., 2017, 46, 33D0O2-I:31302.110.3(9b/)CA9G. GC.0S0l8a9t4eBr
and A. I. Cooper, Science, 2015, 348, aaa8075.
The precipitate was then filtered and vacuum dried
overnight to get TLOP in an isolated yield of 90%.
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Synthesis
of
[(E)-1,2-bis(2-((1,4,8,11-
tetraazacyclotetradecan-1-yl)sulfonyl)-4-
azidophenyl)ethane Ni(II)Cl2] (Ni-TLOP):
TLOP 1(0.50g) was suspended in dry CH3CN (50mL) followed
by addition of NiCl2 (0.54g) and the reaction mixture was
stirred for overnight. After metalation the colour of the
suspension was darken and the precipitated product was
filtered out using a G4 glass filter. The solid obtained was
washed with MeOH (2 x10 mL) and CH3CN (50mL) followed
by vacuum drying overnight to get 0.47g of Ni-TLOP
photocatalyst.
General procedure for photocatalytic alkyne-azide click
reaction:
In a cuvette, photocatalyst (5 mg) and alkyne derivative (1
mmol) were stirred at room temperature for 5 mins followed
by addition of azido derivative (1 mmol) and NaCl (4M,
250μL). The reaction mixture was vigorously stirred under
visible light irradiation until completion of reaction. The
mixture of ethanol/chloroform (5 mL) was added to isolate
the product and photocatalyst by simple filtration followed
by drying. The photocatalyst recovered via filtration was
successively washed with CHCl3, acetone and water and
dried under vacuum before reusing. The detail
characterization of the triazole derivative and the recovered
photocatalyst are given in the supplementary information
file.
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Conflicts of interest
There are no conflicts to declare.
25. Q. Sun, B. Aguila, J. Perman, L. D. Earl, C. W. Abney, Y.
Cheng, H. Wei, N. Nguyen, L. Wojtas, S. Ma, J. Am. Chem. Soc.
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Acknowledgements
This work was supported by KRICT Big Project.
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8 | J. Name., 2012, 00, 1-3
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