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
原子与氨基氮原子相连，而该氮原子又与染料甲川链形成烯
。
词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.
该染料甲川链上原子与氨基氮原子相连，而该氮原子又与染料甲川链形成烯。
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.
本文由链状醛酮烯与己二酰氯反应合成两个新4-
酮衍生物。
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