Process for the preparation of trans-1,1,2-triphenyl-but-1-ene derivatives

摘要

The invention concerns the direct preparation of trans-1,1,2-triphenyl-but-1-ene derivatives having the general formula _1 by dehydration of carbinols having the general formula _2 by heating in a strongly hydrochloric or sulphuric acid medium with the exclusion of organic solvents. <IMAGE> +TR <IMAGE> R1 = CH3, CH2CH3; R2 = H, OH.