Monoprotection of Diols as a Key Step for the Selective Synthesis of Unequally Disubstituted Diamondoids (Nanodiamonds)
作者:Hartmut Schwertfeger、Christian Würtele、Michael Serafin、Heike Hausmann、Robert M. K. Carlson、Jeremy E. P. Dahl、Peter R. Schreiner
DOI:10.1021/jo801321s
日期:2008.10.3
(desymmetrization) of diamondoid, benzylic, and ethynyl diols has been achieved using fluorinated alcohols such as 2,2,2-trifluoroethanol (TFE) under acidic conditions. This practical acid-catalyzed S(N)1 reaction opens the door for the synthesis of novel bifunctional diamondoids. With diamantane as an example, we show that the resulting monoethers can be used to prepare selectively, for instance, amino
使用氟化醇(例如2,2,2-三氟乙醇(TFE))在酸性条件下已实现了类金刚石,苄基和乙炔基二醇的单保护(脱对称)。这种实用的酸催化S(N)1反应为合成新型双功能类金刚石打开了大门。以金刚烷为例,我们表明所得的单醚可用于选择性制备,例如氨基或硝基醇和非天然氨基酸。在探索功能化纳米金刚石的电子,药理和材料特性方面,这些是重要的化合物。