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2005
Cleavage reactions
O 0100
The Carbon—Silicon Bond Cleavage of Organosilicon Compounds in SupercritiWater. — Organosilicon compounds with different structural and electronic prop11- 053 cal
erties undergo extremely facile and rapid C—Si bond cleavage in supercritical water.
Addition of HCl accelerates the cleavage of sterically hindered C—Si bonds. Several
other additives, e.g. HBr or H2SO4, also accelerate the reaction. Supercritical conditions
are not necessarily required for C—Si bond cleavage, however, in some cases the C—Si
bond cleavage turns out to be crucial using subcritical conditions. Furthermore, a facile
conversion of hydrosilane into silanol in supercritical water is found. — (ITAMI*, K.;
TERAKAWA, K.; YOSHIDA, J.-I.; KAJIMOTO, O.; Bull. Chem. Soc. Jpn. 77 (2004)
11, 2071-2080; Dep. Synth. Chem. Biol. Chem., Grad. Sch. Eng., Kyoto Univ.,
Nishikyo, Kyoto 615, Japan; Eng.) — H. Hoennerscheid
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