عنوان مجله
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APPLIED ORGANOMETALLIC CHEMISTRY
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چکیده
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A new porous triazine-based covalent organic polymer (Triazine-COP) was
prepared through the Schiff-base condensation of 2,4,6-tris(4-formyl phenoxy)-1,3,5-triazine and 4,4
0
-oxydianiline, under sonication. The synthesized
Triazine-COP with a high surface area was stable in water and other organic
solvents. In the next step, Au (III) ions were immobilized on the nitrogen-rich
Triazine-COP that on the reduction with NaBH4produced the heterogeneous
catalyst of gold clusters in nanosize (Au-NCs@Triazine-COPs). It was applied
as an efficient catalyst for the A
3
coupling reaction of alkynes, aldehydes
with and amines. Both electron-withdrawing/releasing groups produced
the corresponding propargylamines with high yields. The high activity of the
Au-NCs@Triazine-COPs in this reaction was because of the nanoporous structure of the support that enables the high dispersion and an unhindered open
environment for the NCs. The catalyst was reused up to 7 times without significant loss in activity.
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