Synthesis of dendritic polyamide with protected amino functional groups in the periphery
Ye Li, Meng Chao, Zhang Xiuqiang, Zhang Afang
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College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China;
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Published
05 Dec 2006
Issue Date
05 Dec 2006
Abstract
A homologous series of first- to third-generation dendritic polyamides 2a, 3, and 5 with tris(aminoethyl) amine (TREA) as the core and the protected amino functional groups at the periphery were synthesized via active ester route from Schl?ter type dendron 1a. Their structures were characterized by 1H-NMR and mass spectra. Based on the efficient synthesis of the first generation dendrimer 2a (yield 75%), the synthesis of second-generation dendrimer 3 was found to be more efficient via the convergent method (yield 69%), while the mixed strategy was applied efficiently for the synthesis of the higher generation dendrimer 5 (yield 37%). The overall yield for the third generation dendrimer 5 from Schl?ter dendron is 12%.
Ye Li, Meng Chao, Zhang Xiuqiang, Zhang Afang.
Synthesis of dendritic polyamide with protected amino functional groups in the periphery. Front. Chem. China, 2006, 1(4): 469‒473 https://doi.org/10.1007/s11458-006-0066-1
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