Process for producing tricyanoethylated pentaerythritol

Details Process for producing tricyanoethylated pentaerythritol Process for producing tricyanoethylated pentaerythritol

1997-07-10

1999-02-09

Higel, Floyd D.

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

Organic compounds

Nitriles

558450, C07C25500

Patent

active

058697322

ABSTRACT:
An imporved process for producing tricyanoethylated pentaerythritol by selectively cyanoethylating only three hydroxy groups of pentaerythritol in a high yield such as 90 to 95%, involves reacting one mole of pentaerythritol with three mole of acrylonitrile by Micheal Addition Reaction in an alkaline aqueous solution in coexistence with an extraction solvent. The tricyanoethylated pentaerythritol has a high purity and is useful for production of a high dielectric polymer.

REFERENCES:
patent: 2383443 (1945-08-01), Bruson
patent: 2407607 (1946-06-01), Bruson, II
patent: 2437905 (1948-03-01), Bruson, III

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