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US 5,756,803 AGranted
Process for the condensation of an aldehyde with hydrogen cyanide
AssigneeRhone-Poulenc Nutrition Animale
InventorsClaude Casse, Frederic Kress, Philippe Morel
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Abstract
A process for the condensation of an aldehyde with hydrogen cyanide in the presence of a buffer is disclosed. The buffer advantageously allows the condensation reaction to occur at a pH equal to or above 4.0 and in the absence of amines.
Claims21
A condensation reaction process, which comprises condensing an aldehyde with hydrogen cyanide in the presence of a buffer wherein said buffer allows the condensation reaction to occur at a pH equal to or above 4.0 and without the presence of amines.
Dependencies are inferred from the claim text.