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Photochemical Transformations of Some 2-(5-Methylthiophen-2-yl)-3-[(naphthalen-2-yl)methoxy]-4H-chromen-4-ones Involving Type-II Process

Photochemical Transformations of Some 2-(5-Methylthiophen-2-yl)-3-[(naphthalen-2-yl)methoxy]-4H-chromen-4-ones Involving Type-II Process
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摘要 Photo-irradiation of 2-(5-methylthiophen-2-yl)-3-[(naphthalen-2-yl)methoxy]-4H-chromen-4-ones yielded the fascinating angular tetracyclic products via cyclization involving both 2-thienyl ring and naphthylmethoxy group via 1,4-biradical generated in the Norrish type-II process. The stereochemical dispositions of the products were determined by MM2 energy minimized programme and spectroscopic analysis. Photo-irradiation of 2-(5-methylthiophen-2-yl)-3-[(naphthalen-2-yl)methoxy]-4H-chromen-4-ones yielded the fascinating angular tetracyclic products via cyclization involving both 2-thienyl ring and naphthylmethoxy group via 1,4-biradical generated in the Norrish type-II process. The stereochemical dispositions of the products were determined by MM2 energy minimized programme and spectroscopic analysis.
出处 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2011年第4期745-750,共6页 中国化学(英文版)
关键词 type-II reaction RADICALS thienylchromone sigmatropic rearrangement substituent effects type-II reaction, radicals, thienylchromone, sigmatropic rearrangement, substituent effects
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  • 1Harborne, J. B. The Flavanoids--Advances in Research Since 1986, Chapman, Hall, London, 1994.
  • 2Sachhar, S. P.; Tripathi, N.; Singh, A. K. Indian J. Chem. 1987, 26B, 493.
  • 3Weidenborner, M.; Hindrof, H.; Jha, H.; Tsotsonos, P. Phytochemistry 1990, 29, 1103.
  • 4Weidenborner, M.; Jha, H. Pestic. Sci. 1993, 38, 347.
  • 5Pincemail, J.; Deby, C.; Drieu, K.; Anton, R.; Goutier, R In Proceedings of the Third International Symposium on Flavonoids in Biology and Medicine, Singapore, 1989, p. 161.
  • 6Steenken, S.; Tosic, M.; Marjanovic, B.; Simic, M. G. J. Am. Chem. Soc. 1994, 116, 4846.
  • 7Thomsen, L. L.; Ching, L. M.; Zhuang, L.; Gavin, J. B.; Baguley, B. C. Cancer Res. 1991, 51, 77.
  • 8Futami, H.; Wiltrout, R. H. Cancer Res. 1991, 51, 6596.
  • 9Feng, J. P.; Wang, X. L.; Cao, X. P. Chin. J. Chem. 2006, 24, 215.
  • 10Gupta, S. C.; Mukerjee, S. K. Tetrahedron Lett. 1973, 14, 5073.

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