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Comparison of Photocyclization Reactions of Fluoro- vs Nonfluoro-Substituted Polymethyleneoxy Donor Linked Phthalimides
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  • Comparison of Photocyclization Reactions of Fluoro- vs Nonfluoro-Substituted Polymethyleneoxy Donor Linked Phthalimides
  • Comparison of Photocyclization Reactions of Fluoro- vs Nonfluoro-Substituted Polymethyleneoxy Donor Linked Phthalimides
저자명
Park. Hea Jung,Ryu. Young Ju,Kim. Kyung Mok,Yoon. Ung Chan,Kim. Eunae,Sohn. Youngku,Cho. Dae Won,Mariano. Patrick S.
간행물명
Bulletin of the Korean Chemical Society
권/호정보
2013년|34권 4호|pp.1108-1114 (7 pages)
발행정보
대한화학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Photochemical reactions of fluoro- vs. nonfluoro-substituted polymethylenoxy chain linked phthalimide were carried out to explore how electronegative fluorine atoms inside the donor chain influence photocyclization reaction efficiencies and to briefly determine the alkali metal binding properties of the photoproducts. The results of this study show that the fluorine-substituted donor chain linked phthalimide undergoes inefficient photocyclization via single electron transfer (SET)-induced excited state pathways to generate 14-membered cyclic amidol compared to nonfluoro-analog due to low electron donor ability of the terminal oxygen donor site. These results show that photoinduced intramolecular SET processes arising from ${alpha}$-silyl ether electron donors to phthalimides are largely dependent on the kinds of substituents inside donor chain. Finally, a preliminary study with the cyclic amidols generated in this effort showed that they have weak alkali metal cation binding properties regardless of absence/presence of fluoro-substituents.