A family of stilbene-ethers as photolabile protecting groups for primary alcohols offers controlled deprotection based on choice of wavelength
作者:Jinn-Hsuan Ho、Ya-Wen Lee、Ying-Zhe Chen、Pin-Sian Chen、Wei-Qi Liu、Yi-Shun Ding
DOI:10.1016/j.tet.2013.06.074
日期:2013.9
A novel stilbene-ether type of photolabile protecting group (PPG) for hydroxyl group has been developed. It contains a stable aryl ether group in the protected form and can be deprotected by acid-catalyzed photorearrangement under 300-nm irradiation. The selective deprotection has also been achieved by irradiation of the mixture of 4-alkoxystilbene and 2-(4-alkoxystyryl)furan at 365 nm.
已经开发了新颖的二苯乙烯-醚类型的对羟基的光不稳定保护基(PPG)。它包含受保护形式的稳定的芳基醚基,可以在300 nm辐射下通过酸催化的光重排进行脱保护。选择性脱保护也已经通过在365nm处辐射4-烷氧基sti和2-(4-烷氧基苯乙烯基)呋喃的混合物来实现。