Patent ID: 6852896

Claim:
An integrated process of preparing a C 2-5 , alkenyl-substituted aromatic compound from a C 2-5 alkane and a C 6-12 aromatic compound, the process comprising: (a) a first reaction step wherein a C 6-12 aromatic compound is reacted with hydrogen chloride to yield water and a chlorinated C 6-12 aromatic compound; (b) a second reaction step wherein the chlorinated C 6-12 aromatic compound from the first reaction step is contacted with a C 2-5 alkane to produce a C 2-5 alkane-substituted aromatic compound that spontaneously dehydrogenates to a C 2-5 alkenyl-substituted aromatic compound and hydrogen chloride; and (c) separating the C 2-12 alkenyl-substituted aromatic compound from the hydrogen chloride, and any unreacted C 6-5 aromatic compounds.