Thermal behavior of head-to-head coumarin dimers and their lactone-opened derivatives.

…, T Yoshida, T Hirai, K Saigo, M Hasegawa

文献索引：Yonezawa, N.; Ikebe, Y.; Yoshida, T.; Hirai, T.; Saigo, K.; Hasegawa, M. Bulletin of the Chemical Society of Japan, 1984 , vol. 57, # 6 p. 1608 - 1611

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被引用次数: 10

摘要

The thermal behavior of head-to-head coumarin dimers and twelve lactone-opened derivatives was investigated. Though the lactone rings in coumarin dimers are very susceptible to nucleophilic ring-opening, heating these derivatives reformed six-membered lactone rings except for certain imide and diamide derivatives. The large neiboring group effect allowed the relactonization by the attack of hydroxyphenyl group to carbonyl carbon ...