| http://www.w3.org/ns/prov#value | - (b) The cyano group of addition product (65) is removed by reaction with a base, e.g. potassium hydroxide, sodium hydroxide, lithium hydroxide or cesium hydroxide in an organic solvent selected from ethylene glycol, 2-methoxyethyl ether, 1,4-dioxane or diethylene glycol.
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