Synthesis, E/Z-isomerization, and cycloaddition of (E)- and (Z)-4,4,4-trifluoro-2-butenenitrile to anthracene

Author： Volkonskii A.   Kagramanova E.   Kagramanov N.   Chkanikov N.  

Publisher： Springer Publishing Company

ISSN： 1066-5285

Source： Russian Chemical Bulletin, Vol.61, Iss.10, 2012-10, pp. : 2001-2003

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Abstract

4,4,4-Trifluoro-2-butenenitrile was synthesized by the Wittig reaction of trifluoroacetaldehyde and cyanomethylidenetriphenylphosphorane and separated to individual E- and Z-isomers by rectification. Each isomer undergoes stereospecific [4+2] cycloaddition to anthracene.

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