Process for preparing monoalkenylbenzenes

Details Process for preparing monoalkenylbenzenes Process for preparing monoalkenylbenzenes

1975-05-27

1976-05-04

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260668F, 260671A, C07C 352

Patent

active

039548961

ABSTRACT:
In the process for preparing monoalkenylbenzenes by reacting an alkylbenzene and a C.sub.4 - C.sub.5 conjugated diene in the presence of an alkali metal catalyst while passing the reactants progressively through a series of successive reaction zones substantially isolated from each other under non-back-flow conditions, the reaction being carried out at this time while feeding said alkylbenzene and alkali metal catalyst to the first reaction zone and the conjugated diene separately to at least two of said zones, and thereafter withdrawing the reaction product from the final reaction zone of said series; the improvement which comprises (1) reacting the reactants including the alkylbenzene, C.sub.4 - C.sub.5 conjugated diene and alkali metal catalyst under boiling conditions in at least one of the reaction zone selected from the second and subsequent reaction zones; and (2) recovering the evaporated product from said reaction zone or zones as a liquid and recycling same to a reaction zone preceding that at which the product was evaporated.

REFERENCES:
patent: 3766288 (1973-10-01), Shima et al.
patent: 3865889 (1975-02-01), Mitchell
patent: 3904702 (1975-09-01), Mitchell

Affiliated with

Also associated with

Rating

Process for preparing monoalkenylbenzenes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing monoalkenylbenzenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing monoalkenylbenzenes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-680279