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Synthesis of carbon dendron nano-chains with π-extended conjugation based on linear 1,4-phenylethynyl and 1,5-naphthylethynyl subunits

✍ Scribed by J.Gonzalo Rodrı́guez; J.Luis Tejedor; Jorge Esquivias; Cristina Dı́az

Book ID
104254213
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
131 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

A convenient and efficient synthesis of 3,5-di(trimethylsilylethynyl)phenylacetylene and p- [3,5-di(trimethylsilylethynyl)-1-phenylethynyl]phenylacetylene and the naphthylethynyl homologues terminal acetylenes of 5-(N,N-dimethylamino)naphthylethyne have been carried out. These terminal acetylene compounds serve to prepare nanometer-sized conjugated 1,3,5-tri(ethynylphenyl)benzene and 1,3,5-tri(ethynylnaphthyl)benzene oligomers, by means of heterocoupling with 1,3,5-triiodobenzene, catalysed by palladium, in excellent yields. Both the ethynylphenyl or ethynylnaphthyl homologues chains show fluorescence emission radiation, with important quantum yield.

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Synthesis of nanostructures based on 1,4
Synthesis of nanostructures based on 1,4- and 1,3,5-phenylethynyl units with π-extended conjugation. Carbon networks dendrimer base units
✍ J.Gonzalo Rodrı́guez; J. Esquivias 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 220 KB

A convenient and efficient synthesis of 3,5-di(silylethynyl)phenylacetylene and p- [3,5-di(silylethynyl)phenylethynyl]phenylacetylene has been carried out. These compounds serve to prepare nanometer-sized conjugated 1,4-and 1,3,5-phenylethynyl oligomers, by means of cross-coupling with a convenient