中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | benzenemethanol, 2-[(tetrahydro-2H-pyran-2-yl)oxy]- | 130413-06-8 | C12H16O3 | 208.257 |
—— | benzenemethanol, 2-[(tetrahydro-2H-pyran-2-yl)oxy]-, acetate | 130413-05-7 | C14H18O4 | 250.295 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | [4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-[2-(tetrahydro-pyran-2-yloxy)-benzyl]amine | 675865-22-2 | C24H32N2O3 | 396.53 |
A catalytic amount of ruthenium(III) acetylacetonate (2 mol%) [Ru(acac)3] enables solvent-free tetrahydropyranylation of different types of alcohols and phenols at ambient temperature in moderate to excellent yields. Notably, selective monoprotection of diols can be achieved chemoselectively. Furthermore, the catalyst could be recovered and reused if necessary.Key words: tetrahydropyranyl ethers, protecting groups, ruthenium(III) acetylacetonate, alcohols, thiols.
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。