The syntheses of two new derivatives of 4 - pyrone, by the reaction of adipyl choloride with enamines deriving from chain ketones and aldehydes, are described.

本文由链状醛烯胺与己二酰氯反应个新4-吡喃物。

The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye.

该染料甲川链上碳原子与氨基氮原子相连，而该氮原子又与染料甲川链形烯胺。