Hydroxy Derivatives of Diamantane, Triamantane, and [121]Tetramantane: Selective Preparation of Bis-Apical Derivatives
作者:Natalie A. Fokina、Boryslav A. Tkachenko、Anika Merz、Michael Serafin、Jeremy E. P. Dahl、Robert M. K. Carlson、Andrey A. Fokin、Peter R. Schreiner
DOI:10.1002/ejoc.200700378
日期:2007.10
Functionalizations of diamantane, triamantane, and tetramantane with electrophilic reagents (Br2, nitric acid) lead to various apical and medial disubstituted products that were separated and characterized individually. The highly desirable and otherwise inaccessible thermodynamically more stable apical bis-derivatives were obtained with high preparative yields through acid catalyzed isomerizations
Some comments on the thermal stability of substituted ammonium, phosphonium, and arsonium permanganates and their use in alkane oxidation
作者:Bernard P. Leddy、M.Anthony McKervey、Peter McSweeney
DOI:10.1016/0040-4039(80)80019-0
日期:1980.1
Tetraethyl- and tetrabutylammonium permanganate are less prone to explosive decomposition when heated than are benzyl(triethyl)ammonium and methyl-(triphenyl) phosphonium permanganate and are about equally effective as oxidants for the conversion of alkanes into alcohol and ketones.
The amino derivatives of diamantane and triamantane, representing close topological analogues of the neuroprotective drug Memantine®, were prepared via amination of the respective carboxylic acids or alcohols. amines - diols - drugs - hydrocarbons - medicinal chemistry
Selective Preparation of Diamondoid Fluorides<sup>[1]</sup>
作者:Hartmut Schwertfeger、Christian Würtele、Heike Hausmann、Jeremy E. P. Dahl、Robert M. K. Carlson、Andrey A. Fokin、Peter R. Schreiner
DOI:10.1002/adsc.200800787
日期:2009.5
Abstractmagnified imageThe selective fluorination of diamantane, triamantane, [121]tetramantane, and [1(2,3)4]pentamantane bromides and alcohols was achieved by using the fluorinating agents silver fluoride (AgF) and diethylaminosulfur trifluoride (DAST). Various mono‐, di‐, tri‐ and even tetrafluorinated diamondoid derivatives were prepared and characterized. We were also able to prepare the amino fluoro and the fluoro alcohol derivatives of diamantane from the corresponding monoprotected diamondoid diols. These reactions can be carried out in a highly selective manner and proceed without isomerizations. The fluorinated, unequally disubstituted derivatives are valuable compounds for the exploration of electronic, pharmacological, and material properties of functionalized diamondoids.