Tetrahedron Letters p. 185 - 188 (1999)
Update date:2022-08-24
Topics:
Kirpichenko, Svetlana V.
Suslova, Elena N.
Albanov, Alexandr I.
Shainyan, Bagrat A.
The thermal conversion of sulfoxide 1 into the O-silylated cyclic O,S- acetal (2) is the first example of the sila-Pummerer rearrangement of cyclic organosilicon sulfoxides leading to ring expansion. The kinetics of the rearrangement are studied and thermodynamic parameters are determined. The results are in compliance with mechanism involving a pentacoordinated silicon atom.
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