Process for preparing diels-alder addition product from conjugat

Details Process for preparing diels-alder addition product from conjugat Process for preparing diels-alder addition product from conjugat

1997-01-15

1999-01-19

O'Sullivan, Peter

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

558366, 558377, C07C25500

Patent

active

058615288

ABSTRACT:
In a process for preparing a Diels-Alder addition product of a conjugated diolefin and acrylonitrile by reacting the conjugated diolefin with acrylonitrile, a vessel type reactor is used. The pressure of the gaseous phase in the reactor is increased by using an inert gas in the reaction. A premixed solution of the conjugated diolefin or a compound which produces the conjugated diolefin in the reactor and acrylonitrile is released through an upper portion of the reactor into the gaseous phase and then dropped into a liquid phase to react. A reaction product is taken out through a lower portion of the reactor. The process can be carried out continuously in a safe manner over an extended period of time without any adhesion of an insoluble polymer to the reactor or to the inlet or outlet pipes, and without sudden pressure fluctuations.

REFERENCES:
patent: 3359285 (1967-12-01), Landis et al.

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