144466-23-9Relevant academic research and scientific papers
The reaction of group 14 dimetallenes with alkenes: Electron-poor alkenes
Dixon, Craig E.,Cooke, Jeffrey A.,Baines, Kim M.
, p. 5437 - 5440 (2008/10/08)
The addition reactions of tetramesitylgermasilene with methyl vinyl ketone (MVK), crotonaldehyde, and acrylonitrile were studied. When tetramesitylgermasilene was allowed to react with MVK, [2 + 4] cycloaddition and nonregioselective carbonyl [2 + 2] cycloaddition products were isolated. When tetramesitylgermasilene was allowed to react with crotonaldehyde, the carbonyl [2 + 2] adduct was produced exclusively. The regiochemistry was not determined. The addition of acrylonitrile to tetramesitylgermasilene yielded a germasilacyclobutane, which is the formal [2 + 2] cycloadduct between the germasilene and the C-C double bond of acrylonitrile. Tetramesityldisilene was also found to yield a formal [2 + 2] adduct with acrylonitrile. However, tetramesityldigermene rearranges to a germylgermylene at a faster rate than acrylonitrile addition.
Tetramesitylgermasilene: The first relatively stable germasilene and its rearrangement to a silylgermylene
Baines, Kim M.,Cooke, Jeffrey A.
, p. 3487 - 3488 (2008/10/08)
The thermolysis of hexamesitylsiladigermirane (1) in the presence of triethylsilane at 105°C yields mesityl(triethylsilyl)(trimesitylsilyl)germane (3) and dimesityl(triethylsilyl)germane (4). Photolysis of 1 at -78°C in the presence of triethylsilane gave tetramesitylgermasilene, which upon warming rearranged by a 1,2-aryl shift to mesityl(trimesitylsilyl)germylene, which was then trapped by the silane.
