trimethylsilyl ethers

例句：

1. 1. These compounds are used as catalysts in the synthesis of organic molecules.
   这些化合物在有机分子的合成中用作催化剂。
2. 2. The reaction mechanism involves the formation of trimethylsilyl ethers through a nucleophilic substitution reaction.
   该反应机制涉及通过亲核取代反应形成三甲基硅基醚。
3. 3. The use of this reagent is limited by its high cost and toxicity.
   这种试剂的使用受到其高成本和毒性的限制。