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.