enol ether

例句：

1. 1. The reaction of enol ethers with acids is a common method for preparing organic compounds.
   烯醇醚与酸的反应是一种常见的制备有机化合物的方法。
2. 2. Enol ethers are used in the production of pharmaceuticals and cosmetics.
   烯醇醚用于制药和化妆品的生产。
3. 3. The enol ether structure is found in many natural products, such as terpenes.
   烯醇醚结构存在于许多天然产物中，如萜类化合物。