Synthesis of Fréchet-type Dendrimer Using Glaser-type Coupling Reaction of the Terminal Alkyne-focal Dendrons

Autor:	Jae Wook Lee, Seung Choul Han, Sung-Ho Jin, Seung Hwan Kwak, Seong-Hee Yun
Rok vydání:	2014
Předmět:	chemistry.chemical_classification Fusion Alkyne Infrared spectroscopy General Chemistry Condensed Matter Physics Mass spectrometry Coupling reaction Terminal (electronics) chemistry Dendrimer Polymer chemistry General Materials Science Spectroscopy
Zdroj:	Molecular Crystals and Liquid Crystals. 597:79-87
ISSN:	1563-5287 1542-1406
DOI:	10.1080/15421406.2014.932233
Popis:	Graphical AbstractGeneral, fast, and efficient fusion methods for the synthesis of dendrimers with 1,4-diphenylbuta-1,3-diyne at a core were developed. The synthetic strategy was employed the fusion method of the terminal alkyne via CuI/NBS/DIPEA-mediated Glaser-type coupling reaction. Glaser-type coupling reaction under CuI/NBS/DIPEA promoting system could be completed under ambient temperature without exclusion of air and moisture. The fusion of the terminal alkyne-focal Frechet-type dendrons 3-Dm by homo-coupling of terminal alkyne lead to the formation of symmetric Frechet-type dendrimers 4-Gm with 1,4-diphenylbuta-1,3-diyne at core. Their structure of dendrimers was confirmed by 1H- and 13C-NMR spectroscopy, IR spectroscopy, mass spectrometry, and GPC analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a5e54560c8eb4f7750b6474b4b784770 https://doi.org/10.1080/15421406.2014.932233 Zobrazit plný text záznamu