PREPARATION OF TETRAHYDROISO-α-ACIDS BY THE HYDROGENATION OF THE METAL SALTS OF ISO-α-ACIDS

摘要

Tetrahydroiso-α-acids are prepared from iso-α-acids metal salts by hydrogenating the salts in a reaction solvent of a lower alkanol containing about 5 % to about 20 % w/w water and in the presence of up to about 5-50 psig hydrogen and a hydrogenation catalyst at about 30-50 °C to form tetrahydroiso-α-acids.