Synthesis of 4-trifluoromethyl-7-hydroxycoumarin derivatives. Structure of 3-cyano-4-trifluoromethyl-7-acetoxycoumarin
Bulletin of the Russian Academy of Sciences, Division of chemical science(1992)
摘要
A method was developed for the production of derivatives of 4-trifluoromethyl-7-hydroxycoumarin with electron-withdrawing groups (CN, CF3CO) at position 3. The structure of 3-cyano-4-trifluoromethyl-7-acetoxycoumarin was proved by x-ray crystallographic investigation. The effect of the substituents on the geometry of the molecule is discussed.
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关键词
Synthesis, structure, 7-hydroxycoumarin derivatives, laser dyes
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