Diels-Alder cycloaddition of novel buta-1,-3-diene derivatives possessing a (diethoxyphosphinoyl)difluoromethyl unit.
A series of new buta-1,3-diene derivatives possessing a (diethoxyphosphinoyl)difluoromethylene unit at the terminal carbon was prepared to examine the reactivity for Diels-Alder cycloaddition with various representative dienophiles.
Yokomatsu
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School of Pharmacy, Tokyo University of Pharmacy & Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan. yokomatu@ps.toyaku.ac.jp
Katayama
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Shibuya
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