Patent ID: 7485762

Claim:
A method for preparing a styrenic olefin comprising the steps of: adding a catalyst and a solvent in a reactor and heating the reactor to create a reflux state; adding an alcohol starting material dropwise to the reactor at a constant rate; removing water generated by adding the alcohol starting material from the reactor; and purifying the obtained styrenic olefin, wherein the alcohol starting material is a material represented by the following Formula 1: where each of R1, R2, R3, R4 and R5, which may be identical or different, may be selected from the group consisting of a hydrogen atom, a halogen group, a hydroxy group, a thio group, an amine group, an alkyl group, a cycloalkyl group, a haloalkyl group, an alkylsilyl group, a silylalkyl group, an alkoxy group, a alkylthio group and an alkylamine group having 1-20 carbon atoms and an aryl group, a haloaryl group, an arylalkyl group, an alkylaryl group, an arylsilyl group, a silylaryl group, an arylalkylsilyl group, an aryloxy group, an arylthio group and an arylamine group having 6-40 carbon atoms.