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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 7, Number 4
BKCSDE 7(4)
April 20, 1986

Title	Relative Photoreactivity of 5,7-Dimethoxycoumarin and cis-syn 8-MOP Thd Monoadduct to Thymidine in a Dry Film State
Author	Sang Chul Shim*, Ho Kwon Kang
Keywords
Abstract	The photocycloaddition reactivity of 5,7-dimethoxycoumarin (DMC) to thymidine is much higher than that of cis-syn 8-methoxypsoralen thymidine monoadducts, due to the steric effect. The different rate is also due to the relative reactivity of the singlet rather than the triplet excited state of the compounds. The biadducts of 8-methoxypsoralen and thymidine are first splitted into 4',5'-monoadducts and thymidine, not into 3,4'-monoadducts and thymidine by 254 nm light.
Page	289 - 293
Full Text	PDF

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