Fokin, Andrey A. Yurchenko, Raisa I. Tkachenko, Boryslav A. Fokina, Natalie A. Gunawan, Maria A. Poinsot, Didier Dahl, Jeremy E. P. M. K. Carlson, Robert Serafin, Michael Cattey, Hélène Hierso, Jean-Cyrille Schreiner, Peter R. Selective Preparation of Diamondoid Phosphonates We present an effective sequence for the preparation of phosphonic acid derivatives of the diamondoids diamantane, triamantane, [121]­tetramantane, and [1­(2,3)­4]­pentamantane. The reactions of the corresponding diamondoid hydroxy derivatives with PCl<sub>3</sub> in sulfuric or trifluoroacetic acid give mono- as well as didichlorophosphorylated diamondoids in high preparative yields. diamondoid hydroxy derivatives;PCl 3;trifluoroacetic acid;Selective Preparation;phosphonic acid derivatives;diamondoids diamantane;Diamondoid PhosphonatesWe;didichlorophosphorylated diamondoids 2014-06-06
    https://acs.figshare.com/articles/journal_contribution/Selective_Preparation_of_Diamondoid_Phosphonates/2285425
10.1021/jo500793m.s001