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Synthesis and properties of pyrimidine-containing linear molecules

✍ Scribed by Ken-Tsung Wong; Yun-Ruei Lu; Yuan-Li Liao

Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 76 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)01275-8

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✦ Synopsis

Palladium-catalyzed Stille and Sonogashira coupling reactions were sequentially applied for constructing novel pyrimidine-containing linear molecules. The chemoselectivity of 5-bromo-2-iodopyrimidine (1) towards Pd-catalyzed coupling reaction serves as a tool for the successful control of the arrangement of dipolar pyrimidine moieties inside the conjugated backbone. The influence of the arrangement of dipolar pyrimidine in the linear backbone on their absorption and photoluminescence are not stupendous. Thermogravimetric analysis (TGA) indicate that all linear molecules in this study exhibit high thermal stability.

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