申请人:Schreiner Peter R.
公开号:US20100036153A1
公开(公告)日:2010-02-11
The invention at hand provides at least dinitroxylated diamantanes. In addition, it provides methods for producing substituted diamantanes with high yields and selectivity.
According to the invention, dinitroxylated diamantanes are suitable for being reacted with nucleophiles to form the corresponding disubstituted diamantanes. Surprisingly, it was discovered that at least dinitroxylated or hydroxylated diamantanes are rearranged in the presence of a strong acid, creating at least 4,9-nitroxylated or hydroxylated diamantanes. On the basis of this, 4,9-substituted diamantanes are able to be produced in a targeted manner by reaction with further nucleophiles.
Thus, the invention at hand provides the following methods according to the present invention for producing at least disubstituted diamantanes:
a) at least dinitroxylation, followed by the substitution of all nitroxy groups by a nucleophile or
b) at least dinitroxylation, subsequent rearrangement in the presence of a strong acid, after realised rearrangement all nitroxy groups are replaced by a nucleophile or
c) at least dinitroxylation, subsequent reaction with water (as nucleophile), rearrangement of the at least dihydroxylated compound in the presence of a strong acid, after realised rearrangement all hydroxy groups are replaced by another nucleophile.
该发明提供至少二硝基化二莽烷。此外,它提供了一种高产率和选择性生产取代二莽烷的方法。根据该发明,二硝基化的二莽烷适合与亲核试剂反应,形成相应的二取代二莽烷。令人惊讶的是,在强酸存在的情况下发现,至少二硝基化或羟基化的二莽烷会重排,形成至少4,9-硝基化或羟基化的二莽烷。基于此,通过与进一步的亲核试剂反应,可以有针对性地生产4,9-取代的二莽烷。因此,该发明提供了以下根据本发明的方法,用于生产至少二取代的二莽烷:a) 至少二硝基化,然后用亲核试剂替换所有硝基团或b) 至少二硝基化,后在强酸存在下重排,重排后用亲核试剂替换所有硝基团或c) 至少二硝基化,后与水(作为亲核试剂)反应,在强酸存在下重排,重排后用另一亲核试剂替换所有羟基。