Patent ID: 7525001

Claim:
A process for the preparation of a compound of formula (9), which comprises: i) a step for alkylating an aromatic compound of formula (1) with an alkene compound of formula (2) in the presence of catalyst to produce the reaction products which comprises the compounds of formulas (3) to (8); and ii) a step for reducing the reaction products obtained in the above step i) to produce the compound of formula (9), wherein, R 1 and R 2 are independently C 1-10 alkyl; R 3 is halogen or O—Y wherein Y is selected from the group consisting of hydrogen, alkyl, arylmethyl, alkylsilyl, alkoxycarbonyl, acyl, arylsulfonyl, alkylsulfonyl and dialkylphosphonyl; and X is halogen or O—Z wherein Z is selected from the group consisting of alkyl, arylmethyl, alkylsilyl, alkoxycarbonyl, acyl, arylsulfonyl, alkylsulfonyl and dialkylphosphonyl.