The present invention provides an improved process for the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene compounds of the structural formula I ##STR1## In addition, the present invention provides an improved process for the preparation of 1,4-diaryl-2-fluoro-2-butadiene compounds of the structural formula IV ##STR2##

La presente invenzione fornisce un processo migliorato per la preparazione dei residui 1,4-diaryl-2-fluoro-1,3-butadiene del ## strutturale del ## STR1 di formula I in piĆ¹, la presente invenzione fornisce un processo migliorato per la preparazione dei residui 1,4-diaryl-2-fluoro-2-butadiene del ## strutturale del ## STR2 di formula IV

 
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