The Stereospecific Preparation of (E)-1-Aryl-F-1,3-butadienes. -In the presence of CuI and Pd(PPh3)4 as catalyst, title compounds are predominantly obtained as (E)-isomers whereby, (Z)-products are supposed to be formed during the isolation by isomerization. -(PEDERSEN, S. D.; BURTON*, D. J.; J. Fluorine Chem. 155 (2013) 39-44, http://dx.