acetals的例句（acetals在句子中的用法）

• This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals. 论述了乙烯基醚类化合物的三种主要制备方法乙炔法 、 脱卤化氢法和缩醛热分解法.
• The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc. 最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.
• Eight acetals ( Ketals ) were synthesized under the optimal conditions. 在最佳条件下,合成了八个缩醛 ( 酮 ) 化合物.
• The yields of other cyclic acetals were between 62. 并在此条件下合成了多种环缩醛,收率62.