alkene

The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.

在碳化过程中，聚苯乙烯阳离交换树脂的苯环结构和烯团比磺酸团稳定。

hydroxyl ketene dithioacetals possessing an allylalcohol moiety, as well as terminal bisalkylthio substituted alkene are a class of important intermediates in organic synthesis.

羟二缩烯酮类化合物不仅含有烯丙醇结构单元,而且双键端位被双取代,是有机合成中的一类重要的有机中间体。