| 摘要 |
PURPOSE:To obtain the subject compound useful for synthetic intermediate of nylon in short reaction time, without necessity of neutralization, without corrosiveness of stainless vessel, in high purification and high yield by reacting aniline derivative and lactone derivative using specific acid catalyst. CONSTITUTION:An aniline derivative expressed by formula I (R<1>, R<2> is H, 1-8C alkyl, alkoxy, dialkylamino, alkylamino, arylamino or halogen) is reacted with a lactone derivative expressed by formula II (R<3> is H, 1-9C alkyl; n is 2-13), preferably using 0.5-3.0mol compound expressed by formula I to 1mol compound expressed by formula II at 50-300 deg.C, especially 100-250 deg.C using phosphoric acid and/or phosphate (e.g., phosphoric acid, polyphosphoric acid or sodium hydrogen phosphate) as acid catalyst to obtain a compound expressed by formula III. Besides, amount of use of the acid catalyst is preferably in a range of 0.001-1.0mol, especially 0.01-0.5mol to 1mol of compound expressed by formula II. |
