A process for accelerating the reaction of epoxides with compounds containing NH2- and / or NH- groups.

摘要

Hydroxyamines are prepared by the reaction of primary or secondary amines with polyepoxides or monoepoxides accelerated by salts of thiocyanic acid. The salts may be metal, ammonium or amine salts or complexes thereof with ammonia, hydrazine or organic compounds, e.g. amines, thiourea and acetone. The epoxides specified are those of mono- or poly-unsaturated hydrocarbons; halogen-containing monoepoxides; epoxy ethers of monohydric or polyhydric alcohols or phenols, and nitrogenous epoxides. The amines may be aliphatic, cycloaliphatic, aromatic or heterocyclic amines possibly containing ether, hydroxy, amide and sulphonamide groups. Examples 1 and 2 describe the reaction of 1 mole of diethylamine with 1 mole of propylene oxide or vinylcyclohexene dioxide in the presence of Ca(SCN)2.4H2O ALSO:The reaction of primary or secondary amines with polyepoxides or monoepoxides is accelerated by salts of thiocyanic acid. The salts may be metal, ammonium or amine salts or complexes thereof with ammonia, hydrazine or organic compounds, e.g. amines, thiourea and acetone. The epoxides specified are those of mono- or polyunsaturated hydrocarbons; halogen-containing monoepoxides; epoxy ethers of monohydric or polyhydric alcohols or phenols and nitrogenous epoxides. The amines may be aliphatic, cycloaliphatic, aromatic or heterocyclic amines possibly containing ether, hydroxy, amide and sulphonamide groups. They may be monomeric or polymeric.