| 摘要 |
<p>Method for the production of 3-picoline wherein a first educt, consisting of at least one acetaldehydeacetal with or without acetaldehyde and/or crotonaldehyde, is reacted with a second educt, consisting of at least one formaldehydeacetal and/or hexamethylenetetramine with or without formaldehyde, in a liquid, aqueous phase at a temperature of 180 DEG to 280 DEG C. in a closed vessel. The reaction is conducted in the presence of ammonia and/or ammonium ions. The reaction is also conducted in the presence of an anion or anions of an inorganic and/or organic acid or acids, which at 20 DEG C. have an acid dissociation constant of 106 to 10-12.</p> |
