Microwave Assisted Catalytic Protection and Deprotection of Alcohols with 3,4-Dihydro-2H-Pyran
作者:Nabajyoti Deka、Jadab C. Sarma
DOI:10.1080/00397910008087070
日期:2000.12.1
Protection of alcohols as their 2-tetrahydropyranyl ethers and their subsequent hydrolysis can be easily achieved through a microwave irradiated reaction catalysed by iodine.
Copper(II) Chloride Dihydrate: A Catalytic Agent for the Deprotection of Tetrahydropyranyl Ethers (THP Ethers) and 1-Ethoxyethyl Ethers (EE Ethers)
Tetrahydropyranylethers (THP groups) and 1-ethoxyethyl ethers (EE groups) are removed upon refluxing in 95% EtOH or Me2CO–H2O (95:5) in the presence of a catalytic amount of copper(II) chloride dihydrate (2–5 mol%).