Atrane
Atranes are a class of tricyclic
Lewis acidic atom such as silicon or boron at the other bridgehead.[1] The name "atrane" was first proposed by Mikhail Grigorievich Voronkov.[1]
Nomenclature
allyl
silatrane moleculeVarious atranes are named depending on the central element, e.g. "silatrane" (E = silicon); "boratrane" (E = boron); "phosphatrane" (E = phosphorus), etc. It is also proposed that when Y = nitrogen, the prefix "aza" be inserted before element + "atrane" (azasilatrane, for example) because atranes wherein E = silicon and Y = oxygen have been referred to as just "silatranes".[2]
Structure and properties
Silatranes exhibit unusual properties as well as biological activity in which the coordination of nitrogen to silane plays an important role. Some derivatives such as phenylsilatrane are highly toxic.
The transannular coordinate bond in atranes can be stretched (quasiatranes) and even broken (proatranes,) by controlling their
stereoelectronic properties. The strength of the transannular interaction depends on the electronegativity
of the participating atoms and the size of the rings.
catalyst
.
See also
References
- ^ a b Voronkov, Mikhail G.; Baryshok, Viktor P. "Atranes - a new generation of biologically active substances" (in Russian) Vestnik Rossiiskoi Akademii Nauk 2010, volume 80, 985-992.
- .
- ISBN 978-0471936237.
- PMID 32352271.
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