1-Phenyl-1,3-butadiene is an organic reagent. There are two isomers: cis-1-phenyl-1,3-butadiene and trans-1-phenyl-1,3-butadiene. trans-1-Phenyl-1,3-butadiene is an alicyclic hydrocarbon that is an important starting material for the synthesis of various organic compounds such as polymers and dyes. It is used as a reagent for various reactions in the laboratory such as the Grignard and Wittig reactions. It is also used in the synthesis of other alicyclic hydrocarbons such as 1-phenyl-2-butadiene, 1-phenyl-3-butadiene and 1-phenyl-4-butadiene.
