METHOD FOR PREPARING LINEAR α-METHYLSTYRENE DIMERS Russian patent published in 2007 - IPC C07C2/14 C07C15/46 

Abstract RU 2313512 C1

FIELD: petrochemical synthesis, organic chemistry, chemical technology.

SUBSTANCE: invention relates to synthesis of linear unsaturated dimmers of α-methylstyrene. Method involves the dimerization reaction of α-methylstyrene in the presence of anhydrous copper (II) sulfate as a catalyst taken in the amount 1-5 wt.-% at the reaction temperature 60-800C. Invention provides enhancing yield of the end product wherein α-isomer of α-methylstyrene prevails. Synthesized substances can be used as regulators of polymers molecular mass, solvents and a base for preparing synthetic oils.

EFFECT: improved method of synthesis.

6 ex

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RU 2 313 512 C1

Authors

Dzhemilev Usein Mamatovich

Kutepov Boris Ivanovich

Grigor'Eva Nellja Gennadievna

Galjautdinova Regina Rimovna

Dates

2007-12-27Published

2006-07-10Filed