Synthesis of Dendrimer Containing Dialkylated-fluorene Unit as a Core Chromophore via Click Chemistry 


Vol. 33,  No. 1, pp. 137-142, Jan.  2012
10.5012/bkcs.2012.33.1.137


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  Abstract

The convergent synthetic strategy for the emissive dendrimers having the chromophore at core via the coppercatalyzed 1,3-dipolar cycloaddition reaction between alkyne and azide was described. 2,7-Diazido-9,9-dioctyl- 9H-fluorene, designed to serve as the core in dendrimer, was stitched with the alkyne-functionalized Fréchettype and PAMAM dendrons by the click chemistry leading to the formation of the corresponding fluorescent dendrimers in high yields. The preliminary photoluminescence studies indicated that 2,7-diazido-9,9-dioctyl- 9H-fluorene showed no fluorescence due to the quenching effect from the electron-rich α-nitrogen of the azido group but the dendrimers fluoresced due to the elimination of the quenching through the formation of the triazole ring.

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  Cite this article

[IEEE Style]

S. C. Han, S. Jin, null, J. W. Lee, "Synthesis of Dendrimer Containing Dialkylated-fluorene Unit as a Core Chromophore via Click Chemistry," Bulletin of the Korean Chemical Society, vol. 33, no. 1, pp. 137-142, 2012. DOI: 10.5012/bkcs.2012.33.1.137.

[ACM Style]

Seung Choul Han, Sung-Ho Jin, null, and Jae Wook Lee. 2012. Synthesis of Dendrimer Containing Dialkylated-fluorene Unit as a Core Chromophore via Click Chemistry. Bulletin of the Korean Chemical Society, 33, 1, (2012), 137-142. DOI: 10.5012/bkcs.2012.33.1.137.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949