Synthesis of N,N-Diaryl-(pyridin-3-yl)pyrimidin-2-amine Derivatives and Their Photochemical Properties

• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Ibrahim Mustafa El Deeb So Ha Lee
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제25권 제3호, 291~298쪽, 전체 8쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

Although the pyrimidine derivatives were obtained in low yields ranging from 8% to 20%, we reported the successful preparation of N,N-diaryl-pyrimidin-2-amine derivatives starting from the corresponding 2-aminopyrimidines (1a-1c), by direct palladium-catalyzed arylation using different arylbromides. The reasons of low yields are thought to be the electronic and steric effects by the neighboring aromatic systems. The absorption spectra and photoluminescent spectra of compounds (3a 3g and 4a-4c) were measured using dichloromethane on the concentration of 25 mM by UV vis spectroscopy and luminescent spectroscopy. Pyrimidine derivatives 4a, 4b, and 4c showed moderate emission maxima at 474 nm, 481 nm, and 367 nm, respectively, while other compounds showed very weak photoluminescence or no photoluminescence at all.

목차

1. Introduction

2. Experimental

3. Results and Discussion

4. Conclusions

Acknowledgements

References

키워드

Palladium catalyst N N-diarylation 2-aminopyrimidine phosphine ligand