Rapid and practical green acetylation and tetrahydropyranylation routes of structurally diverse alcohols and phenols were applied under solvent-free reaction conditions providing excellent yields, using catalytic amounts of environmentally friendly sulfonated ordered nanoporous carbon (CMK-5-SO3H). Non-toxic nature of the catalyst, its easy handling, recovery and reusability, and the absence of any solvent characterize the presented procedures as efficient methods. These procedures provide methods for the separation of the product by simple filtration.
在无溶剂反应条件下,利用环境友好的磺酸化有序纳米多孔碳(CMK-5-SO3H)催化剂,快速且实用地对结构多样的醇和酚进行绿色乙酰化和四氢吡喃基化反应,获得优异的产率。催化剂的无毒性、易于处理、回收和重复使用,以及无溶剂的特性将所提出的方法描述为高效的方法。这些方法提供了通过简单过滤分离产物的途径。
The catalytic activity of highly thermal stable, hydrophobic, and complete heterogeneous propylsulfonic acid functionalized nanostructured SBA-15 for excellent acetylation of alcohols and phenols with acetic anhydride at ambient temperature in solvent-free conditions was examined under environmentally benign reaction conditions. The salient features of this protocol are the absence of solvent, a green experimental procedure, and simple reusability of the catalyst (at least five reaction cycles).