Method of preparing unsaturated dimers of .alpha.-methylstyrenes

Details Method of preparing unsaturated dimers of .alpha.-methylstyrenes Method of preparing unsaturated dimers of .alpha.-methylstyrenes

1994-05-18

1996-03-26

Achutamurthy, Ponnathapura

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By dimerization of vinyl aromatic

585435, 585510, 585515, 585526, C07C 204

Patent

active

055022642

ABSTRACT:
1-pentene dimers of .alpha.-methylstyrenes are produced with high selectivity in good productivity by stirring 50 to 95 parts by weight of an .alpha.-methylstyrene in the presence of 50 to 5 parts by weight of an aqueous solution of a sulfonic acid, and a 1-pentene dimer having good preservative property is then collected by removing the sulfonic acid, adjusting the resulting reaction solution to pH 8 or higher and distilling the neutralized reaction solution.

REFERENCES:
patent: 2249987 (1941-07-01), Stanley et al.
patent: 4596896 (1986-06-01), Cobb
Database WPI, Section CH, Week 9142, Derwent Publications Ltd.

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